FL851 Hazard Warning Lights Flash Improperly – 2020-2021 Freightliner Cascadia

SEOCONTENT-START

Defect Information Report
(Section 573.6)
FL851
Date of Submission: March 28, 2023
Manufacturer: Daimler Truck North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: X Safety Defect Non-Compliance
Vehicle Information
Model Yr. Start: 2020 Model Yr. End: 2021
Make: Freightliner
Model: Cascadia
Production Dates: Begin: 01/16/2019 End: 03/27/2020
Type: Truck/Tractor
Descriptive Information:
On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop, and flashes at a rate of 140 flashes per min.
Number potentially involved: 24,282 Estimated percentage of involve with defect: 100%
Defect Description
Describe the defect:
On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop and flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.”
If a noncompliance, provide the applicable FMVSS: FMVSS 108
Describe the safety risk:
Certain Freightliner Cascadias with DTNA’s ABA system will automatically activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as well as the flash rate at which the hazard lamps’ flash rate, noncompliance under FMVSS 108 Lamps, reflective devices, and associated equipment.
Identify any warning, which can precede or occur: ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings.
If applicable, identify the manufacture of the defective or noncompliant component: Hazard and Turn Signal Lighting parameters during Active Brake Assist (ABA)
Involved Components
Component Name: Detroit Assurance 5.0
Component Description: Advanced Drivers Assistance System (ADAS)
Component Part Number: NA
Supplier Identification: DTNA
Component Manufacturer: DTNA
Chronology of Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision.
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non-compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA
believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations.
June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment. Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition. DTNA made several verbal updates, presentations and provided evidence and data to support the inconsequentiality petition pertaining to hazard warning signals flashing at 140 flashes per min during certain ABA events that involves full braking. July 13, 2020, upon NHTSA’s request, DTNA amended the inconsequentiality petition to include FMVSS S14.9.3.9.3 – flasher performance requirements as an additional non-compliance basis. Between late August 2021 to late December 2021, DTNA again reviewed the inconsequentiality petition with NHTSA at the agency’s request, culminating in an amendment to the Part 573 non-compliance information report and petition for exemption.
On March 20, 2023, DTNA received notice of denial of the inconsequentiality petition for noncompliance. Therefore, out of abundance of caution, and per the requirements of Motor Vehicle Safety Act, DTNA submitted a new Part 573 report in light of the agency’s response.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement.
On the affected vehicles, parameters controlling the enablement of hazards flashing automatically at a faster frequency during an ABA Emergency Braking Event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers.
Identify the Recall Schedule
Describe the recall schedule for notifications:
Customer notification will be made by first class mail using Daimler Truck North America records to determine the customers affected.
Planned Dealer Notification Begin Date: 05/19/2023
Planned Dealer Notification End Date: 05/19/2023
Planned Owner Notification Begin Date: 05/19/2023
Planned Owner Notification End Date: 05/19/2023
Manufacture’s identification code for this recall (if applicable): FL851
DTNA Representative;
Sam Geser
Manager, Compliance and Regulatory Affairs

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Amended Defect Information Report
(Section 573.6)
FL851
Date of Submission: March 28, 2023 (Amended May 5, 2023)
Manufacturer: Daimler Truck North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: Safety Defect X Non-Compliance
Vehicle Information
Model Yr. Start: 2020 Model Yr. End: 2021
Make: Freightliner, Western Star
Model: Cascadia
Production Dates: Begin: 01/16/2019 End: 03/27/2020
Model Yr. Start: 2020 Model Yr. End: 2021
Make: Western Star
Model: 49X
Production Dates: Begin: 08/09/2019 End: 02/25/2020
Type: Truck/Tractor
Descriptive Information:
On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop, and hazards flashes at a rate of 140 flashes per min.
Basis for Determination of the Recall Population:
Certain vehicles equipped with Advanced Drivers Assistance System 5.0 within the above mention production dates.
Number potentially involved: 24,282 Estimated percentage of involve with defect: 100%
Defect Description
Describe the defect:
On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop and hazards flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.”
If a noncompliance, provide the applicable FMVSS: FMVSS 108
Describe the safety risk:
On certain vehicles with DTNA’s ABA system will automatically activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as well as the flash rate at which the hazard lamps’ flash rate, noncompliance under FMVSS 108 Lamps, reflective devices, and associated equipment.
Identify any warning, which can precede or occur: ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings.
If applicable, identify the manufacture of the defective or noncompliant component: Hazard and Turn Signal Lighting parameters during Active Brake Assist (ABA)
Involved Components
Component Name: Detroit Assurance 5.0
Component Description: Advanced Drivers Assistance System (ADAS)
Component Part Number: NA
Component’s country of origin: USA
Business address: 4747 N Channel Ave, Portland, OR 97217
Business Contact Information:
First / Last Name: Sam Geser
Position: Manager, Compliance and Regulatory Affairs
Email: Sam.geser@daimlertruck.com
Phone: (503) 745-8000
Chronology of Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision.
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non-compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations.
June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment. Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition. DTNA made several verbal updates, presentations and provided evidence and data to support the inconsequentiality petition pertaining to hazard warning signals flashing at 140 flashes per min during certain ABA events that involves full braking. July 13, 2020, upon NHTSA’s request, DTNA amended the inconsequentiality petition to include
FMVSS S14.9.3.9.3 – flasher performance requirements as an additional non-compliance basis. Between late August 2021 to late December 2021, DTNA again reviewed the inconsequentiality petition with NHTSA at the agency’s request, culminating in an amendment to the Part 573 non-compliance information report and petition for exemption.
On March 20, 2023, DTNA received notice of denial of the inconsequentiality petition for noncompliance. Therefore, out of abundance of caution, and per the requirements of Motor Vehicle Safety Act, DTNA submitted a new Part 573 report in light of the agency’s response.
On April 3, 2023, DTNA amended the Part 573 to include component manufacture’s information. In addition, there have been no known reports of claims, injuries, or accidents due to the subject non-compliance. On April 11, 2023, DTNA amended the Part 573 to include one truck that was believed still within DTNA’s possession but later determined to have been sold. Later in April 2023, DTNA re-analyzed the population and the models covered; although the total number of vehicles remains the same, the 49X model type of one affected vehicle was not listed in the recall report. The present addendum corrects that error. On May 5, 2023 DTNA updated nomenclature referring to ABA to be consistent with vehicle literature. Also added final Remedy statement. There are no claims, warranty, field or service reports. There are no death and/or injuries reported that DTNA is aware of.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement.
On the affected vehicles, the parameters controlling the enablement of hazards and related functionality flashing automatically during an ABA emergency braking event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers.
Identify the Recall Schedule
Describe the recall schedule for notifications:
Customer notification will be made by first class mail using Daimler Truck North America records to determine the customers affected.
Planned Dealer Notification Begin Date: 05/19/2023
Planned Dealer Notification End Date: 05/19/2023
Planned Owner Notification Begin Date: 05/19/2023
Planned Owner Notification End Date: 05/19/2023
Manufacture’s identification code for this recall (if applicable): FL851
DTNA Representative;
Tiffani Torgeson
Manager, Compliance and Regulatory Affairs

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Daimler Truck
North America LLC
IMPORTANT SAFETY RECALL
This notice applies to your vehicle(s), see enclosed VIN list.
May 2023
FL851A
NHTSA #23V-208
Subject: Active Brake Assist Exterior Lighting Functions
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division, and wholly owned subsidiary, Western Star Truck Sales, Inc., has decided that certain model years 2020-2021 Freightliner Cascadia; and Western Star 49X vehicles fail to conform to the Federal Motor Vehicle Safety Standard No. 108 “Lamps, reflective devices, and associated equipment.” See below for additional detail on vehicle applicability:
Make
Model
Model Yr. Start
Model Yr. End
Prod. Start Date
Prod. End Date
Freightliner
Cascadia
2020
2021
January 16, 2019
March 27, 2020
Western Star
49X
2020
2021
August 9, 2019
February 25, 2020
On the affected vehicles, during certain active brake assist (ABA) events, the hazard warning lights and headlights may flash improperly, which can confuse other road users, increasing the risk of a crash. ABA events occur only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings.
A Daimler Truck North America authorized service facility will update the software for the hazard warning lights. The Recall will take approximately one half hour and will be performed free of charge.
Please contact an authorized Daimler Truck North America dealer to arrange to have the Recall performed and to ensure that parts are available at the dealership. To locate an authorized dealer, search online at https://northamerica.daimlertruck.com/contact-us. Scroll down to “Locate a Dealer” and select the appropriate brand.
You may also confirm your vehicle’s involvement in this recall at the following URL:
https://dtna-dlrinfo.prd.freightliner.com:48518/VinLookup/vin-module/getVinLookupPage.
You may be liable for any progressive damage that results from your failure to complete the Recall within a reasonable time after receiving notification.
If you do not own the vehicle that corresponds to the identification number(s) which appears on the Recall Notification, please return the notification to the Warranty Campaigns Department with any information you can furnish that will assist us in locating the present owner. If you have leased this vehicle, Federal law requires that you forward this notice to the lessee within 10 days. If you are a subsequent stage manufacturer, Federal law requires that you forward this notice to your distributors and retail outlets within five working days. If you have paid to have this recall condition corrected prior to this notice, you may be eligible to receive reimbursement. Please see the reverse side of this notice for details.
If you have questions about this Recall, please contact the Warranty Campaigns Department at (800) 547-0712, 7:00 a.m. to 4:00 p.m. Pacific Time, Monday through Friday, e-mail address DTNA.Warranty.Campaigns@Daimlertruck.com. For other concerns, you may contact the Customer Assistance Center at (800) 385-4357. If you are not able to have the defect remedied without charge and within a reasonable time, you may wish to submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590; or call the Vehicle Safety Hotline at (888) 327-4236 (TTY: 800-424-9153); or go to http://www.nhtsa.gov.
We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety.
WARRANTY CAMPAIGNS DEPARTMENT
Enclosure
Daimler Truck North America LLC
Warranty Campaigns Department
P.O. Box 4090
Portland, OR 97208-4090
800.547.0712 Phone
Daimler Truck
North America LLC
Reimbursement to Customers for Repairs Performed Prior to Recall
If you have already paid to have this recall condition corrected you may be eligible to receive reimbursement.
Requests for reimbursement may include parts and labor. Reimbursement may be limited to the amount the repair would have cost if completed by an authorized Daimler Truck North America LLC dealer. The following documentation must be presented to your dealer for consideration for reimbursement.
Please provide original or clear copies of all receipts, invoices, and repair orders that show
• The name and address of the person who paid for the repair
• The Vehicle Identification Number (VIN) of the vehicle that was repaired
• What problem occurred, what repair was done, when the repair was done
• Who repaired the vehicle
• The total cost of the repair expense that is being claimed
• Proof of payment for the repair (such as the front and back of a cancelled check or a credit card receipt)
Reimbursement will be made by check from your Daimler Truck North America LLC dealer.
Please speak with your Daimler Truck North America LLC authorized dealer concerning this matter.
Daimler Truck North America LLC
Warranty Campaigns Department
P.O. Box 4090
Portland, OR 97208-4090
800.547.0712 Phone

**************************************************************************************************************

Subject: Active Brake Assist Exterior Lighting Functions
Models Affected: Specific model years 2020-2021 Freightliner
Cascadia; and Western Star 49X vehicles manufactured
January 16, 2019, through March 27, 2020.
General Information
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Trucks Division and wholly owned
subsidiary, Western Star Truck Sales Inc., has decided that the Active Brake Assist (ABA) exterior lighting
function is noncompliant under FMVSS/CMVSS 108 “Lamps, Reflective Devices, and Associated Equipment”,
on the vehicles mentioned above.
REVISION: The FL851 Bulletin has been updated to include vehicles in Canada.
On the affected vehicles, during certain ABA events, the hazard warning lights and headlights may flash
improperly, which can confuse other road users, increasing the risk of a crash. ABA events occur only after
multiple warnings to the drive including auditory and visual warnings, haptic braking which involves partial
braking along with auditory and visual warnings.
A Daimler Truck North America authorized service facility will update the software for the hazard warning lights.
The recall will take one half hour and will be performed free of charge.
There are approximately 25,185 vehicles involved in this campaign.
Additional Repairs
Dealers must complete all outstanding recall and field service campaigns prior to the sale or delivery of a
vehicle. A dealer will be liable for any progressive damage that results from its failure to complete campaigns
before sale or delivery of a vehicle.
Owners may be liable for any progressive damage that results from failure to complete campaigns within a
reasonable time after receiving notification.
Work Instructions
Please refer to the attached work instructions. Prior to performing the campaign, check the vehicle for a
completion sticker (Form WAR260).
Replacement Parts
No replacement parts are required.
If our records show your dealership has ordered any vehicle(s) involved in campaign number FL851AB, a list of
the customers and vehicle identification numbers will be available on the DTNA Portal.
Removed Parts
U.S. and Canadian Dealers, please follow Warranty Failed Parts Tracking shipping instructions for the
disposition of all removed parts. Export distributors, please destroy removed parts unless otherwise advised.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851AB
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 1
Labor Allowance
Table 1 – Labor Allowance
Campaign
Number Procedure Time Allowed
(hours) SRT Code Corrective Action
FL851AB
Update SSAM Environmental Warning (ABA
Exterior Lighting) Parameters
0.4 996-R182A 12-Repair Recall/Campaign
Table 1
IMPORTANT: When the recall has been completed, locate the base completion label in the appropriate location
on the vehicle, and attach the red completion sticker provided in the recall kit (Form WAR260). If the vehicle
does not have a base completion label, clean a spot on the appropriate location of the vehicle and first attach
the base completion label (Form WAR259). If a recall kit is not required or there is no completion sticker in the
kit, write the recall number on a blank sticker and attach it to the base completion label.
Claims for Credit
You will be reimbursed for your labor by submitting your claim through the warranty system within 30 days of
completing this campaign. Please reference the following information in OWL:
• Claim type is Recall Campaign.
• In the Campaign field, enter the campaign number and appropriate condition code (FL851-A or FL851-B)>.
• In the Primary Failed Part Number field, enter 25-FL851-000.
• In the Labor field, first enter the appropriate SRT from the Labor Allowance table. Administrative time will
be included automatically as SRT 939-6010A for 0.3 hours.
• The VMRS Component Code is F99-999-005 and the Cause Code is A1 – Campaign.
• U.S. and Canada — Reimbursement for Prior Repairs. When a customer asks about reimbursement,
please do the following:
• Accept the documentation of the previous repair.
• Make a brief check of the customer’s paperwork to see if the repair may be eligible for reimbursement.
(See the “Copy of Owner Letter” section of this bulletin for reimbursement guidelines.)
• Submit an OWL Recall Pre-Approval request for a decision.
• Include the approved amount on your claim in the Other Charges section.
• Attach the documentation to the pre-approval request.
• If approved, submit a based-on claim for the pre-approval.
• Reimburse the customer the appropriate amount.
IMPORTANT: OWL must be viewed prior to performing the recall to ensure the vehicle is involved and the
campaign has not been previously completed. Also, check for a completion sticker prior to beginning work.
U.S. and Canadian dealers, if you need additional information, contact the Warranty Campaigns Department
using the Warranty Support Center (WSC) app on the DTNA Portal. Export distributors, submit a WSC ticket or
contact your International Service Manager.
The letter notifying U.S. and Canadian vehicle owners is included for your reference.
Please note that the National Traffic and Motor Vehicle Safety Act, as amended (Title 49, United States Code,
Chapter 301), requires the owner’s vehicle(s) be corrected within a reasonable time after parts are available to
you. The Act states that failure to repair a vehicle within 60 days after tender for repair shall be prima facie
evidence of an unreasonable time. However, circumstances of a particular situation may reduce the 60 day
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851AB
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 2
period. Failure to repair a vehicle within a reasonable time can result in either the obligation to (a) replace the
vehicle with an identical or reasonably equivalent vehicle, without charge, or (b) refund the purchase price in
full, less a reasonable allowance for depreciation. The Act further prohibits dealers from selling a vehicle unless
all outstanding recalls are performed. Any lessor is required to send a copy of the recall notification to the
lessee within 10 days. Any subsequent stage manufacturer is required to forward this notice to its distributors
and retail outlets within five working days.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851AB
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 3
Copy of Notice to Owners
For the Notice to U.S. Customers: This notice is sent to you in accordance with the National Traffic and Motor
Vehicle Safety Act. For the Notice to Canadian Customers: This notice is sent to you in accordance with the
requirements of the Motor Vehicle Safety Act. This is to inform you that your vehicle may contain a defect that
could affect the safety of a person.
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Truck Division and wholly owned
subsidiary, Western Star Truck Sales, Inc., has decided that a defect that relates to motor vehicle safety exists
on specific model years 2020-2021 Freightliner Cascadia; and Western Star 49X vehicles manufactured
January 16, 2019, through March 27, 2020.
On the affected vehicles, during certain ABA events, the hazard warning lights and headlights may flash
improperly, which can confuse other road users, increasing the risk of a crash. ABA events occur only after
multiple warnings to the drive including auditory and visual warnings, haptic braking which involves partial
braking along with auditory and visual warnings.
A Daimler Truck North America authorized service facility will update the software for the hazard warning lights.
The recall will take one half hour and will be performed free of charge.
Please contact an authorized Daimler Truck North America dealer to arrange to have the recall performed and
to ensure that parts are available at the dealership. The recall will take approximately one half hour and will be
performed free of charge. To locate an authorized dealer, search online at https://
northamerica.daimlertruck.com/contact-us/. Scroll down to “Locate a Dealer,” and select the appropriate brand.
You may also confirm your vehicle’s involvement in this recall at this URL: https://
dtna-dlrinfo.prd.freightliner.com:48518/VinLookup/vin-module/getVinLookupPage.
You may be liable for any progressive damage that results from your failure to complete the recall within a
reasonable time after receiving notification.
If you do not own the vehicle that corresponds to the identification number(s) which appears on the recall
notification, please return the notification to the Warranty Campaigns Department in the postage-paid envelope
with any information you can furnish that will assist us in locating the present owner. If you have leased this
vehicle, federal law requires that you forward this notice to the lessee within 10 days. If you are a subsequent
stage manufacturer, federal law requires that you forward this notice to your distributors and retail outlets within
five working days. If you have paid to have this recall condition corrected prior to this notice, you may be
eligible to receive reimbursement. Please see the reverse side of this notice for details.
If you have questions about this recall, please contact the Warranty Campaigns Department at (800) 547-0712,
7:00 a.m. to 4:00 p.m. Pacific Time, Monday through Friday, e-mail address
dtna.warranty.campaigns@daimlertruck.com. For the Notice to U.S. Customers: If you are not able to have
the defect remedied without charge and within a reasonable time, you may wish to submit a complaint to the
Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC
20590; or call the Vehicle Safety Hotline at (888) 327-4236 (TTY: 800-424-9153); or go to http://www.nhtsa.gov.
For the Notice to Canadian Customers: If you wish to submit a complaint about this recall, you can contact
Transport Canada – Road Safety, 80 Rue Noel, Gatineau, Quebec J8Z 0A1, or call (800) 333-0510.
We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle
safety.
WARRANTY CAMPAIGNS DEPARTMENT
Enclosure
Subject: Active Brake Assist Exterior Lighting Functions
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851AB
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 4
Reimbursement to Customers for Repairs
Performed Prior to Recall
If you have already paid to have this recall condition corrected you may be eligible to receive reimbursement.
Requests for reimbursement may include parts and labor. Reimbursement may be limited to the amount the
repair would have cost if completed by an authorized Daimler Truck North America LLC dealer. The following
documentation must be presented to your dealer for consideration for reimbursement.
Please provide original or clear copies of all receipts, invoices, and repair orders that show:
• The name and address of the person who paid for the repair
• The Vehicle Identification Number (VIN) of the vehicle that was repaired
• What problem occurred, what repair was done, when the repair was done
• Who repaired the vehicle
• The total cost of the repair expense that is being claimed
• Proof of payment for the repair (such as the front and back of a cancelled check or a credit card receipt)
Reimbursement will be made by check from your Daimler Truck North America LLC dealer.
Please speak with your Daimler Truck North America LLC authorized dealer concerning this matter.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851AB
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 5
Work Instructions
Subject: Active Brake Assist Exterior Lighting Functions
Models Affected: Specific model years 2020-2021 Freightliner
Cascadia; and Western Star 49X vehicles manufactured
January 16, 2019, through March 27, 2020.
Updating the SSAM Environmental Warning (ABA Exterior
Lighting) Parameters
1. Check the base label (Form WAR259) for a completion sticker for FL851 (Form WAR260) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm) below
the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.
2. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
3. Connect the vehicle to DiagnosticLink®.
4. Turn the ignition key to the ‘Run’ position.
5. Open DiagnosticLink.
IMPORTANT: Make sure that DiagnosticLink is updated to the latest version (8.17 SP1 at the time of publication
or newer) before programming the vehicle.
6. Go to the ‘Program Device’ tab, and make sure that the vehicle identification number (VIN) is correct. Select
‘Download data from server.’ See Fig. 1.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 6
03/23/2022 f121170
A
B
C
A. Select the ‘Program Device’ tab.
B. Verify the VIN.
C. Select ‘Download data from server.’
Fig. 1, Downloading Data from the Server
7. After the server data download is complete, go to the ‘Parameters’ tab, then select the ‘SSAM02T – Single
SAM’ folder. See Fig. 2.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 7
03/16/2023 f121360
A
B
A. Select the ‘Parameters’ tab. B. Select the ‘SSAM02T – Single SAM’ folder.
Fig. 2, Selecting the SSAM02T Folder
9. Follow the substeps to set the parameter values.
9.1 Select the ‘PELC_envwrn_hazlights_act’ parameter. Set the parameter value to ‘A0214437458-001
ELC Envwrn Hazlights act = Off.’ See Fig. 3.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 8
04/24/2023 f121385
B
A
A. Select the ‘PELC_envwrn_hazlights_act’ parameter.
B. Set the parameter value to ‘A0214437458-001 ELC Envwrn Hazlights act = Off.’
Fig. 3, Setting the PELC_envwrn_hazlights_act Parameter Value
8. Select the ‘ELC Environmental Warning’ folder, and expand it.
9.2 Select the ‘PELC_envwrn_hibm_act’ parameter. Set the parameter value to ‘A0214437658-001 ELC
Envwrn hibm act = Off.’ See Fig. 4.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 9
04/24/2023 f121386
B
A
A. Select the ‘PELC_envwrn_hibm_act’ parameter.
B. Set the parameter value to ‘A0214437658-001 ELC Envwrn hibm act = Off.’
Fig. 4, Setting the PELC_envwrn_hibm_act Parameter Value
10. Select the ‘Send’ button to write the parameter changes to the vehicle. A window will open asking to confirm
the parameter changes. Select ‘OK.’ See Fig. 5.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 10
04/24/2023 f121387
A
B
A. Select the ‘Send’ button. B. Select ‘OK’ to confirm the parameter.
Fig. 5, Writing the Parameter Changes to the Vehicle
11. Once the parameter changes are complete, go to the ‘Program Device’ tab. Select ‘Unit data management’ in
the upper-right corner. See Fig. 6.
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 11
03/23/2022 f121174
A
B
A. Select ‘Program Device.’ B. Select ‘Unit data management.’
Fig. 6, Selecting Unit Data Management
Daimler Truck
North America LLC Recall Campaign
June 2023
FL851A
NHTSA #23V-208
Transport Canada #2023-280
REVISED NOTICE
Page 12
12. The information corresponding to the VIN should appear under ‘Unit data for upload.’ Select ‘Connect to
server’ to upload the new parameters. See Fig. 7.
13. Once the parameter updates are uploaded to the server, disconnect the vehicle from DiagnosticLink.
14. Turn the ignition key to the OFF position.
15. Clean a spot on the base label (Form WAR259), and attach a campaign completion sticker for FL851 (Form
WAR260), indicating this work has been complete.
03/23/2022 f121175
Fig. 7, Uploading the New Parameters

**************************************************************************************************************

The information contained in this letter supercedes and supplements any related policies and procedures in any previously
released bulletins, the Warranty Manual, and/or previously released letters. Failure to read or distribute this letter will not
exempt addressees from compliance with the information contained herein.
Daimler Truck North America LLC
10BREF #:
1BICI23-023
11BEffective:
2B06/26/2023
12BRelease:
3B06/26/2023
0BSUBJECT:
7BFL851 – Revised Bulletin
This letter is to inform you that a revised bulletin for Recall FL851 ~ Active Brake Assist Exterior Lighting Functions is available on DTNAPortal. Please print and use the revised bulletin for all work under FL851 from this point forward.
REVISION: The FL851 Bulletin has been updated to include vehicles in Canada.
If you have questions or need further information, contact the Warranty Campaigns Department by submitting an inquiry through the WSC link on DTNAPortal.
13BN° DE RÉF. :
4BICI23-023
14BEffectif :
5B26/06/2023
15BLibération :
6B26/06/2023
8BOBJET:
9BFL851 — Bulletin révisé
La présente vise à vous informer qu’un bulletin révisé pour le rappel FL851 ~ Fonctions d’éclairage extérieur d’aide au freinage actif est disponible sur DTNAportail. Veuillez imprimer et utiliser le bulletin révisé pour tous les travaux effectués dans le cadre du FL851 à partir de maintenant.
RÉVISION: Le bulletin FL851 a été mis à jour pour inclure les véhicules au Canada.
Si vous avez des questions ou si vous avez besoin de plus amples renseignements, communiquez avec le Service des campagnes de garantie en envoyant une demande par le biais du lien WSC sur DTNAportail
WARRANTY CAMPAIGNS DEPARTMENT
P.O. Box 4090
800-547-0712
Portland, Oregon 97208-4090
ATTENTION: Dealer Principal, Warranty Manager, Service Manager, Parts Manager
Freightliner Dealers – U.S. and Canada
Western Star and Sterling Dealers – U.S. and Canada
FCCC Dealers – U.S. and Canada
Thomas Built Buses Dealers – U.S. and Canada
Direct Warranty Customers – U.S. and Canada
Detroit Diesel Distributors
Export Distributors
If you have questions about this Letter, please submit your inquiry on the Web using the WSC Link on DTNAConnect

**************************************************************************************************************

Subject: Active Brake Assist
Exterior Lighting Functions
Models Affected: Specific model years 2020-2021 Freightliner
Cascadia; and Western Star 49X vehicles manufactured
January 16, 2019, through March 27, 2020.
General Information
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Truck Division and wholly owned
subsidiary, Western Star Truck Sales, Inc., has decided that the Active Brake Assist (ABA) exterior lighting
functions are noncompliant under FMVSS 108 “Lamps, reflective devices, and associated equipment,” on the
vehicles mentioned above.
There are approximately 24,282 vehicles involved in this campaign.
Additional Repairs
Dealers must complete all outstanding recall and field service campaigns prior to the sale or delivery of a
vehicle. A dealer will be liable for any progressive damage that results from its failure to complete campaigns
before sale or delivery of a vehicle.
Owners may be liable for any progressive damage that results from failure to complete campaigns within a
reasonable time after receiving notification.
Work Instructions
Please refer to the attached work instructions. Prior to performing the campaign, check the vehicle for a
completion sticker (Form WAR260).
Replacement Parts
No replacement parts are required.
If our records show your dealership has ordered any vehicle(s) involved in campaign number FL851A, a list of
the customers and vehicle identification numbers will be available on the DTNA Portal.
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 1
Labor Allowance
Table 1 – Labor Allowance
Campaign
Number Procedure Time Allowed
(hours) SRT Code Corrective Action
FL851A
Update SSAM Environmental Warning (ABA
Exterior Lighting) Parameter
0.4 996-R182A 12-Repair Recall/Campaign
Table 1
On the affected vehicles, during certain ABA events, the hazard warning lights and headlights may flash
improperly, which can confuse other road users, increasing the risk of a crash. ABA events occur only after
multiple warnings to the drive including auditory and visual warnings, haptic braking which involves partial
braking along with auditory and visual warnings.
A Daimler Truck North America authorized service facility will update the software for the hazard warning lights.
The recall will take one half hour and will be performed free of charge.
IMPORTANT: When the recall has been completed, locate the base completion label in the appropriate location
on the vehicle, and attach the red completion sticker provided in the recall kit (Form WAR260). If the vehicle
does not have a base completion label, clean a spot on the appropriate location of the vehicle and first attach
the base completion label (Form WAR259). If a recall kit is not required or there is no completion sticker in the
kit, write the recall number on a blank sticker and attach it to the base completion label.
Claims for Credit
You will be reimbursed for your parts, labor, and handling (landed cost for Export Distributors) by submitting
your claim through the warranty system within 30 days of completing this campaign. Please reference the
following information in OWL:
• Claim type is Recall Campaign.
• In the Campaign field, enter the campaign number and appropriate condition code (FL851-A).
• In the Primary Failed Part Number field, enter 25-FL851-000.
• In the Labor field, first enter the appropriate SRT from the Labor Allowance table. Administrative time will
be included automatically as SRT 939-6010A for 0.3.
• The VMRS Component Code is F99-999-005 and the Cause Code is A1 – Campaign.
• U.S. and Canada — Reimbursement for Prior Repairs. When a customer asks about reimbursement,
please do the following:
• Accept the documentation of the previous repair.
• Make a brief check of the customer’s paperwork to see if the repair may be eligible for reimbursement.
(See the “Copy of Owner Letter” section of this bulletin for reimbursement guidelines.)
• Submit an OWL Recall Pre-Approval request for a decision.
• Include the approved amount on your claim in the Other Charges section.
• Attach the documentation to the pre-approval request.
• If approved, submit a based-on claim for the pre-approval.
• Reimburse the customer the appropriate amount.
IMPORTANT: OWL must be viewed prior to performing the recall to ensure the vehicle is involved and the
campaign has not been previously completed. Also, check for a completion sticker prior to beginning work.
U.S. and Canadian dealers, if you need additional information, contact the Warranty Campaigns Department
using the WSC (Warranty Support Center) app on the DTNA Portal. Export distributors, submit a WSC ticket or
contact your International Service Manager.
U.S. and Canadian Dealers: To return excess kit inventory related to this campaign, U.S. dealers must submit a
Parts Authorization Return (PAR) to the Memphis PDC. Canadian dealers must submit a PAR to their facing
PDC. All kits must be in resalable condition. PAR requests must include the original purchase invoice number.
Export Distributors: Excess inventory is not returnable.
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 2
Please note that the National Traffic and Motor Vehicle Safety Act, as amended (Title 49, United States Code,
Chapter 301), requires the owner’s vehicle(s) be corrected within a reasonable time after parts are available to
you. The Act states that failure to repair a vehicle within 60 days after tender for repair shall be prima facie
evidence of an unreasonable time. However, circumstances of a particular situation may reduce the 60 day
period. Failure to repair a vehicle within a reasonable time can result in either the obligation to (a) replace the
vehicle with an identical or reasonably equivalent vehicle, without charge, or (b) refund the purchase price in
full, less a reasonable allowance for depreciation. The Act further prohibits dealers from selling a vehicle unless
all outstanding recalls are performed. Any lessor is required to send a copy of the recall notification to the
lessee within 10 days. Any subsequent stage manufacturer is required to forward this notice to its distributors
and retail outlets within five working days.
The letter notifying U.S. vehicle owners is included for your reference.
Copy of Notice to Owners
For the Notice to U.S. Customers: This notice is sent to you in accordance with the National Traffic and Motor
Vehicle Safety Act.
model years 2020-2021 Freightliner Cascadia; and Western Star 49X vehicles manufactured January 16, 2019,
through March 27, 2020.
Please contact an authorized Daimler Truck North America dealer to arrange to have the recall performed and
to ensure that parts are available at the dealership. The recall will take approximately one half hour and will be
performed free of charge. To locate an authorized dealer, search online at https://
northamerica.daimlertruck.com/contact-us/. Scroll down to “Locate a Dealer,” and select the appropriate brand.
You may also confirm your vehicle’s involvement in this recall at this URL: https://
dtna-dlrinfo.prd.freightliner.com:48518/VinLookup/vin-module/getVinLookupPage.
You may be liable for any progressive damage that results from your failure to complete the recall within a
reasonable time after receiving notification.
If you do not own the vehicle that corresponds to the identification number(s) which appears on the recall
notification, please return the notification to the Warranty Campaigns Department in the postage-paid envelope
with any information you can furnish that will assist us in locating the present owner. If you have leased this
vehicle, federal law requires that you forward this notice to the lessee within 10 days. If you are a subsequent
stage manufacturer, federal law requires that you forward this notice to your distributors and retail outlets within
five working days. If you have paid to have this recall condition corrected prior to this notice, you may be
eligible to receive reimbursement. Please see the reverse side of this notice for details.
If you have questions about this recall, please contact the Warranty Campaigns Department at (800) 547-0712,
7:00 a.m. to 4:00 p.m. Pacific Time, Monday through Friday, e-mail address
dtna.warranty.campaigns@daimlertruck.com. For the Notice to U.S. Customers: If you are not able to have
the defect remedied without charge and within a reasonable time, you may wish to submit a complaint to the
Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE., Washington, DC
20590; or call the Vehicle Safety Hotline at (888) 327-4236 (TTY: 800-424-9153); or go to http://www.nhtsa.gov.
For the Notice to Canadian Customers: If you wish to submit a complaint about this recall, you can contact
Transport Canada – Road Safety, 80 Rue Noel, Gatineau, Quebec J8Z 0A1, or call (800) 333-0510.
We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle
safety.
WARRANTY CAMPAIGNS DEPARTMENT
Enclosure
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 3
Daimler Truck North America LLC (DTNA), on behalf of its Freightliner Truck Division and wholly owned
subsidiary, Western Star Truck Sales, Inc., has decided that the Active Brake Assist (ABA) exterior lighting
functions are noncompliant under FMVSS 108 Lamps, reflective devices, and associated equipment, on specific
Subject: Active Brake Assist
Exterior Lighting Functions
On the affected vehicles, during certain ABA events, the hazard warning lights and headlights may flash
improperly, which can confuse other road users, increasing the risk of a crash. ABA events occur only after
multiple warnings to the drive including auditory and visual warnings, haptic braking which involves partial
braking along with auditory and visual warnings.
A Daimler Truck North America authorized service facility will update the software for the hazard warning lights.
The recall will take one half hour and will be performed free of charge.
Reimbursement to Customers for Repairs
Performed Prior to Recall
If you have already paid to have this recall condition corrected you may be eligible to receive reimbursement.
Requests for reimbursement may include parts and labor. Reimbursement may be limited to the amount the
repair would have cost if completed by an authorized Daimler Truck North America LLC dealer. The following
documentation must be presented to your dealer for consideration for reimbursement.
Please provide original or clear copies of all receipts, invoices, and repair orders that show:
• The name and address of the person who paid for the repair
• The Vehicle Identification Number (VIN) of the vehicle that was repaired
• What problem occurred, what repair was done, when the repair was done
• Who repaired the vehicle
• The total cost of the repair expense that is being claimed
• Proof of payment for the repair (such as the front and back of a cancelled check or a credit card receipt)
Reimbursement will be made by check from your Daimler Truck North America LLC dealer.
Please speak with your Daimler Truck North America LLC authorized dealer concerning this matter.
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 4
Work Instructions
Updating the SSAM Environmental Warning (ABA Exterior
Lighting) Parameter
1. Check the base label (Form WAR259) for a completion sticker for FL851 (Form WAR260) indicating this
work has been done. The base label is usually located on the passenger door about 12 inches (30 cm) below
the door latch. If a sticker is present, no work is needed. If there is no sticker, proceed with the next
step.
2. Park the vehicle on a level surface, shut down the engine, and set the parking brake. Chock the tires.
3. Connect the vehicle to DiagnosticLink®.
4. Turn the ignition key to the ‘Run’ position.
5. Open DiagnosticLink.
IMPORTANT: Make sure that DiagnosticLink is updated to the latest version (8.17 SP1 at the time of publication
or newer) before programming the vehicle.
6. Go to the ‘Program Device’ tab, and make sure that the vehicle identification number (VIN) is correct. Select
‘Download data from server.’ See Fig. 1.
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 5
Models Affected: Specific model years 2020-2021 Freightliner
Cascadia; and Western Star 49X vehicles manufactured
January 16, 2019, through March 27, 2020.
Subject: Active Brake Assist
Exterior Lighting Functions
03/23/2022 f121170
A
B
C
A. Select the ‘Program Device’ tab.
B. Verify the VIN.
C. Select ‘Download data from server.’
Fig. 1, Downloading Data from the Server
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 6
03/16/2023 f121360
A
B
A. Select the ‘Parameters’ tab. B. Select the ‘SSAM02T – Single SAM’ folder.
Fig. 2, Selecting the SSAM02T Folder
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 7
7. After the server data download is complete, go to the ‘Parameters’ tab, then select the ‘SSAM02T – Single
SAM’ folder. See Fig. 2.
04/24/2023 f121385
B
A
A. Select the ‘PELC_envwrn_hazlights_act’ parameter.
B. Set the parameter value to ‘A0214437458-001 ELC Envwrn Hazlights act = Off.’
Fig. 3, Setting the ‘”PELC_envwrn_hazlights_act Parameter Value
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 8
8. Select the ‘ELC Environmental Warning’ folder, and expand it.
9. Follow the substeps to set the parameter values.
9.1 Select the ‘PELC_envwrn_hazlights_act’ parameter. Set the parameter value to ‘A0214437458-001
ELC Envwrn Hazlights act = Off.’ See Fig. 3.
‘ ’
04/24/2023 f121386
B
A
A. Select the ‘PELC_envwrn_hibm_act’ parameter.
B. Set the parameter value to ‘A0214437658-001 ELC Envwrn hibm act = Off.’
Fig. 4, Setting the PELC_envwrn_hibm_act Parameter Value
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 9
9.2 Select the ‘PELC_envwrn_hibm_act’ parameter. Set the parameter value to ‘A0214437658-001 ELC
Envwrn hibm act = Off.’ See Fig. 4.
‘ ’
04/24/2023 f121387
A
B
A. Select the ‘Send’ button. B. Select ‘OK’ to confirm the parameter.
Fig. 5, Writing the Parameter Changes to the Vehicle
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 10
10. Select the ‘Send’ button to write the parameter change to the vehicle. A window will open asking to confirm
the parameter change. Select ‘OK.’ See Fig. 5.
03/23/2022 f121174
A
B
A. Select ‘Program Device.’ B. Select ‘Unit data management.’
Fig. 6, Selecting Unit Data Management
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 11
11. Once the parameter change is complete, go to the ‘Program Device’ tab. Select ‘Unit data management’ in
the upper-right corner. See Fig. 6.
13. Once the parameter updates are uploaded to the server, disconnect the vehicle from DiagnosticLink.
14. Turn the ignition key to the OFF position.
15. Clean a spot on the base label (Form WAR259), and attach a campaign completion sticker for FL851 (Form
WAR260), indicating this work has been completed.
03/23/2022 f121175
Fig. 7, Uploading the New Parameters
Daimler Truck
North America LLC Recall Campaign
May 2023
FL851A
NHTSA #23V-208
Page 12
12. The information corresponding to the VIN should appear under ‘Unit data for upload.’ Select ‘Connect to
server’ to upload the new parameters. See Fig. 7.

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-208
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Daimler Trucks North America, LLC MAR 28, 2023 NHTSA Recall No. : 23V-208 Manufacturer Recall No. : FL851 Manufacturer Information :
Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue
Portland OR 97217-3849
Company phone : 800-745-8000 Population :
Number of potentially involved : 24,282 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2021 Freightliner Cascadia Vehicle Type :
Body Style :
Power Train : NR
Descriptive Information : On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop, and flashes at a rate of 140 flashes per min.
Production Dates : JAN 16, 2019 – MAR 27, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Description of Noncompliance :
Description of the Noncompliance :
On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop and flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.” FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR
Description of the Safety Risk : Certain Freightliner Cascadias with DTNA’s ABA system will automatically
activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as
well as the flash rate at which the hazard lamps’ flash rate, noncompliance Part 573 Safety Recall Report 23V-208 Page 2 under FMVSS 108 Lamps, reflective devices, and associated equipment.
Description of the Cause : NR Identification of Any Warning
that can Occur : ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings. Involved Components : Component Name 1 : Detroit Assurance 5.0
Component Description : Advanced Drivers Assistance System (ADAS) Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non- compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment.
Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition. (To be continued in attachment)
Description of Remedy :
Description of Remedy Program : On the affected vehicles, parameters controlling the enablement of hazards
flashing automatically at a faster frequency during an ABA Emergency Braking Event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter.
Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs NR from Recalled Component :
Identify How/When Recall Condition NR was Corrected in Production : Recall Schedule :
Description of Recall Schedule : Customer notification will be made by first class mail using Daimler
Truck North America records to determine the customers affected.
Planned Dealer Notification Date : MAY 19, 2023 – MAY 19, 2023
Planned Owner Notification Date : MAY 19, 2023 – MAY 19, 2023
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-208
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Daimler Trucks North America, LLC MAY 05, 2023 NHTSA Recall No. : 23V-208 Manufacturer Recall No. : FL851 Manufacturer Information :
Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue
Portland OR 97217-3849
Company phone : 800-745-8000 Population :
Number of potentially involved : 24,282 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2021 Freightliner Cascadia Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop, and hazards flashes at a rate of 140 flashes per min.
Production Dates : JAN 16, 2019 – MAR 27, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2020-2021 Western Star 49X
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop, and hazards flashes at a rate of 140 flashes per min.
Production Dates : AUG 09, 2019 – FEB 25, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-208 Page 2 Description of Noncompliance : Description of the Noncompliance : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop and hazards flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.” FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR
Description of the Safety Risk : On certain vehicles with DTNA’s ABA system will automatically activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as well as the flash rate at which the hazard lamps’ flash rate, noncompliance under FMVSS 108 Lamps, reflective devices, and associated equipment.
Description of the Cause : NR Identification of Any Warning
that can Occur : ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings. Involved Components : Component Name 1 : Detroit Assurance 5.0
Component Description : Advanced Drivers Assistance System (ADAS) Component Part Number : NR Supplier Identification : Component Manufacturer
Name : Daimler Truck North America Address : 4747 N Channel Ave
Portland Oregon 97217
Country : United States The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208 Page 3 Chronology :
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non- compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations. June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment.
Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition(To be continued in attachment) Description of Remedy :
Description of Remedy Program : On the affected vehicles, parameters controlling the enablement of hazards
flashing automatically at a faster frequency during an ABA Emergency Braking Event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter.
Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs NR from Recalled Component :
Identify How/When Recall Condition NR was Corrected in Production : Recall Schedule :
Description of Recall Schedule : Customer notification will be made by first class mail using Daimler
Truck North America records to determine the customers affected.
Planned Dealer Notification Date : MAY 19, 2023 – MAY 19, 2023
Planned Owner Notification Date : MAY 19, 2023 – MAY 19, 2023 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
* NR – Not Reported

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-208
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Daimler Trucks North America, LLC MAY 05, 2023 NHTSA Recall No. : 23V-208 Manufacturer Recall No. : FL851 Manufacturer Information :
Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue
Portland OR 97217-3849
Company phone : 800-745-8000 Population :
Number of potentially involved : 24,282 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2021 Western Star 49X
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop, and hazards flashes at a rate of 140 flashes per min.
Production Dates : AUG 09, 2019 – FEB 25, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2020-2021 Freightliner Cascadia Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop, and hazards flashes at a rate of 140 flashes per min.
Production Dates : JAN 16, 2019 – MAR 27, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-208 Page 2 Description of Noncompliance : Description of the Noncompliance : On the affected vehicles, during certain Active Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights and headlamps may activate automatically in the moments immediately before the vehicle comes to a complete stop and hazards flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.” FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR
Description of the Safety Risk : On certain vehicles with DTNA’s ABA system will automatically activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as well as the flash rate at which the hazard lamps’ flash rate, noncompliance under FMVSS 108 Lamps, reflective devices, and associated equipment.
Description of the Cause : NR Identification of Any Warning
that can Occur : ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings. Involved Components : Component Name 1 : Detroit Assurance 5.0
Component Description : Advanced Drivers Assistance System (ADAS) Component Part Number : NR Supplier Identification : Component Manufacturer
Name : Daimler Truck North America Address : 4747 N Channel Ave
Portland Oregon 97217
Country : United States The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208 Page 3 Chronology :
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non- compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations. June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment.
Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition(To be continued in attachment) Description of Remedy :
Description of Remedy Program : On the affected vehicles, the parameters controlling the enablement of
hazards and related functionality flashing automatically during an ABA emergency braking event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities.
Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs NR from Recalled Component :
Identify How/When Recall Condition NR was Corrected in Production : Recall Schedule :
Description of Recall Schedule : Customer notification will be made by first class mail using Daimler
Truck North America records to determine the customers affected.
Planned Dealer Notification Date : MAY 19, 2023 – MAY 19, 2023 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573 Planned Owner Notification Date : MAY 19, 2023 – MAY 19, 2023
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-208
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Daimler Trucks North America, LLC APR 13, 2023 NHTSA Recall No. : 23V-208 Manufacturer Recall No. : FL851 Manufacturer Information :
Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue
Portland OR 97217-3849
Company phone : 800-745-8000 Population :
Number of potentially involved : 24,282 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2020-2021 Freightliner Cascadia Vehicle Type :
Body Style :
Power Train : NR
Descriptive Information : On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop, and flashes at a rate of 140 flashes per min.
Production Dates : JAN 16, 2019 – MAR 27, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2020-2021 Western Star 49X Vehicle Type :
Body Style :
Power Train : NR
Descriptive Information : On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop, and flashes at a rate of 140 flashes per min.
Production Dates : AUG 09, 2019 – FEB 25, 2020
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-208 Page 2 Description of Noncompliance : Description of the Noncompliance : On the affected vehicles, during certain Advanced Brake Assist (ABA) events that have progressed to require a full emergency brake application to avoid a collision, the hazard warning lights may activate automatically in the moments immediately before the vehicle comes to a complete stop and flashes at a rate of 140 flashes per min. FMVSS 108, requires the hazard warning signal lights to be driver controlled and flashing rate to be between 60-120 flashes per min and that the activation of the hazard warning operating unit be “driver controlled.” FMVSS 1 : 108 – Lamps, reflective devices, and assoc. Equipment FMVSS 2 : NR
Description of the Safety Risk : Certain Freightliner Cascadias with DTNA’s ABA system will automatically
activate the hazard lamps if the vehicle’s safety system engages in extreme evasive braking, which can increase the risk of a crash for other road users. NHTSA considers the automatic hazard activation in these circumstances, as well as the flash rate at which the hazard lamps’ flash rate, noncompliance under FMVSS 108 Lamps, reflective devices, and associated equipment.
Description of the Cause : NR Identification of Any Warning
that can Occur : ABA events which progress to a full emergency braking stage occurs only after multiple warnings to the driver including auditory and visual warnings, haptic braking which involves partial braking along with auditory and visual warnings. Involved Components : Component Name 1 : Detroit Assurance 5.0
Component Description : Advanced Drivers Assistance System (ADAS) Component Part Number : NR Supplier Identification : Component Manufacturer
Name : Daimler Truck North America Address : 4747 N Channel Ave
Portland Oregon 97217
Country : United States The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208 Page 3 Chronology :
February 2020, DTNA began an investigation to review all its features related to ABA events as part of a study to develop systems for new trucks. During this study, it was identified that certain features may need further review to ensure the current product met the provisions of FMVSS 108. March 2020 through April 2020, Product Validation conducted tests on certain vehicles to identify any potential non-compliance, and an extensive engineering investigation was undertaken to understand all the features of ABA and how they interact together. During this study, it was identified that in certain situations the hazard warning signals flash at a rate of 140 flashes per min. An in-depth review of NHTSA regulations and interpretations related to this issue indicated a potential non-compliance with the flash rate provisions. May 6, 2020, DTNA determined that a non-compliance existed as to the flash rate for the hazard warning lamps and decided to file a Part 573 non- compliance information report and petition for exemption from the notice and remedy provisions of the Safety Act for this issue. DTNA believed that this non-compliance was inconsequential as it relates to motor vehicle safety, as the occurrence is extremely rare, for a very short duration and does not contribute to confusion or distraction for other motorists. DTNA also recognized that the hazards automatically flash in severe brake events but deemed this not a non-compliance, nor an issue that needed NHTSA approval, based upon the permission granted to GM in essentially similar situations. June 4, 2020, DTNA filed a petition for exemption from notification and remedy provisions of motor vehicle safety act for non-compliance with FMVSS no. 108, lamps, reflective devices and associated equipment.
Between early June 2020 to Late July 2020, DTNA communicated with NHTSA, at the agency’s request, regarding DTNA’s non-compliance information report and inconsequentiality petition. (To be continued in attachment) Description of Remedy :
Description of Remedy Program : On the affected vehicles, parameters controlling the enablement of hazards
flashing automatically at a faster frequency during an ABA Emergency Braking Event will be disabled. Customer notification will be done by first class mail using Daimler Truck North America records to determine the customers affected. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter.
Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs NR from Recalled Component :
Identify How/When Recall Condition NR was Corrected in Production : Recall Schedule :
Description of Recall Schedule : Customer notification will be made by first class mail using Daimler
Truck North America records to determine the customers affected.
Planned Dealer Notification Date : MAY 19, 2023 – MAY 19, 2023
Planned Owner Notification Date : MAY 19, 2023 – MAY 19, 2023 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-208
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
* NR – Not Reported

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