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July 2, 2020 NHTSA CAMPAIGN NUMBER: 20V390000

Corroded Modulator Valve May Cause Brake Pull

Brakes that pull to one side during automatic braking events may cause a sudden change in vehicle direction, increasing the risk of a crash.

NHTSA Campaign Number: 20V390

Manufacturer Daimler Trucks North America LLC

Components SERVICE BRAKES, AIR

Potential Number of Units Affected 164,317

Summary

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2021 Freightliner Cascadia tractor trailers. The single brake modulator valve may be affected by chemical corrosion which can slow down the release timing and cause the brakes to pull to the affected side during automatic braking events.

Remedy

DTNA will notify owners, and dealers will replace the front left and right single brake modulator valves will be replaced and spacers added, free of charge. The recall began August 28, 2020. Owners may contact DTNA customer service at 1-800-547-0712. DTNA’s number for this recall is FL-855.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Check for Daimler Trucks North America Recalls

Daimler Trucks
North America LLC

March 2021
FL855
Interim Recall Notice
NHTSA #20V-390

IMPORTANT SAFETY RECALL

See enclosed VIN list

Subject: Braking System Platform Single Modulator Valves

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

Daimler Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, has decided that a defect which relates to motor vehicle safety exists on specific Model Year 2017-2021 Freightliner Cascadia vehicles manufactured March 8, 2016, through June 25, 2020.

On certain vehicles, chemical corrosion could affect the functionality of the single brake modulator valve, which may result in slow release timing of brakes on the affected side. A slow release of the brake on one side during an active brake request (i.e. automatic braking events), could lead to a brake pull resulting in a sudden change in vehicle direction due to uneven braking on the front axle, increasing the risk of a motor vehicle crash. Regular service brakes are not affected.

This is the first of two notices you will receive regarding this subject. This letter is to inform you of an upcoming Recall to correct the issue noted above. Daimler Trucks is currently securing replacement parts. There is no action for you to take at this time.

The second notice will inform you when the final remedy is available. When you receive the second notice, please contact your authorized Daimler Trucks North America dealer to schedule the Recall for your vehicle.

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 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@Daimler.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 https://www.safercar.gov.

We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety.

WARRANTY CAMPAIGNS DEPARTMENT

Enclosure

REF #: ICI20-027
Effective: 09/02/2020
Release: 09/02/2020

SUBJECT: FL855 – Limited Parts Availability

This letter is to inform you that due to initial kit availability, the vehicle population in this Recall Campaign will be released in phases over a planned six-month period. Units in each phase will be prioritized based on vehicle age, miles, and corrosion factors. Please wait to perform the repair until the vehicles’ phase is released.

DO NOT OVERSTOCK KITS, AND DO NOT PERFORM ON VEHICLES THAT ARE NOT YET ACTIVE IN OWL.

You must confirm a vehicle displays FL855 on the OWL Coverage Info screen before proceeding.

If you have questions or need further information, contact the Warranty Campaigns Department by submitting an inquiry through the WSC Link on DTNAConnect.

Daimler Trucks
North America LLC

Recall Campaign

September 2020
FL855A
NHTSA #20V-390
Transport Canada #2020-305

Subject: Braking System Platform Single Modulator Valves

Models Affected: Specific Model Year 2017-2021 Freightliner Cascadia vehicles manufactured March 8, 2016, through June 25, 2020.

General Information

IMPORTANT: Due to parts availability ,this campaign will be released in phases. The phase will be determined based on vehicle age, vehicle miles, and corrosion factors. You must confirm a vehicle displays FL855 on the OWL Coverage Info screen before proceeding.

PLEASE DO NOT OVERSTOCK KITS, AND DO NOT PERFORM ON VEHICLES THAT ARE NOT YET ACTIVE IN OWL.

Daimler Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, has decided that a defect that relates to motor vehicle safety exists on the vehicles mentioned above.

The front left and right single brake modulator valves will be replaced and spacers added.

There are approximately 187,646 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

Replacement parts are now available and can be obtained by ordering the kit number listed below from your facing Parts Distribution Center.

If our records show your dealership has ordered any vehicle(s) involved in campaign number FL855, a list of the customers and vehicle identification numbers will be available on DTNAConnect. Please refer to this list when ordering parts for this recall.

Table 1 – Replacement Parts for FL855

PLEASE DO NOT OVERSTOCK KITS, AND DO NOT PERFORM ON VEHICLES THAT ARE NOT YET ACTIVE IN OWL.

Table 1

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.

Labor Allowance

Table 2 – Labor Allowance

Campaign Number	Procedure	Time Allowed (hours)	SRT Code	Corrective Action
FL855A	Replace front brake modulator valves	1.3	996-R107A	12-Repair Recall/Campaign

Table 2

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 (FL855-A).
In the Primary Failed Part Number field, enter 25-FL855-000.
In the Parts field, enter the kit number as shown in the Replacement Parts Table.
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, contact the Warranty Campaigns Department via Web inquiry at DTNAConnect.com / WSC, if you have any questions or need additional information. Export distributors, submit a Web inquiry 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.

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 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.

Copy of Notice to Owners in Phase One

Subject: Braking System Platform Single Modulator Valves

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 Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, has decided that a

defect that relates to motor vehicle safety exists on specific Model Year 2017-2021 Freightliner Cascadia vehicles manufactured March 8, 2016, through June 25, 2020.

The front left and right single brake modulator valves will be replaced and spacers added. Repairs will be performed by Daimler Trucks North America authorized service facilities.

This recall is expected to begin on September 21, 2020. At that time, please contact an authorized Daimler Trucks 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, go to www.Daimler-TrucksNorthAmerica.com. On the menu tab, select “Contact,” scroll down to “Find a Dealer,” and select the appropriate brand. The Recall will take approximately two hours and will be performed at no charge to you. 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 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@Daimler.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 to https://www.safercar.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

Copy of Notice to Owners in Remaining Phases

Subject: Braking System Platform Single Modulator Valves

Daimler Trucks North America LLC (DTNA), on behalf of its Freightliner Trucks Division, has decided that a defect that relates to motor vehicle safety exists on specific Model Year 2017-2021 Freightliner Cascadia vehicles manufactured March 8, 2016, through June 25, 2020.

The second notice will inform you when the final remedy is available. When you receive the second notice, please contact your authorized Daimler Trucks North America dealer to schedule the Recall for your vehicle.

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

We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety.

WARRANTY CAMPAIGNS DEPARTMENT

Enclosure

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 Trucks 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 Trucks North America LLC dealer.

Please speak with your Daimler Trucks North America LLC authorized dealer concerning this matter.

Work Instructions

Subject: Braking System Platform Single Modulator Valves

Models Affected: Specific Model Year 2017-2021 Freightliner Cascadia vehicles manufactured March 8, 2016, through June 25, 2020.

PLEASE DO NOT OVERSTOCK KITS, AND DO NOT PERFORM ON VEHICLES THAT ARE NOT YET ACTIVE IN OWL.

Front Modulator Valve Replacement

1. Check the base label (Form WAR259) for a completion sticker for FL855 (Form WAR260) indicating this work has been done. The base label is usually located on the passenger-side door, about 12 inches (30 cm) below the door latch. If a sticker is present for FL855, 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. Open the hood.

NOTE: Both the left and right modulator valves must be replaced.

4. Locate the modulator valve on the left-front frame rail behind the wheel. See Fig. 1.

5. Using the flat end of a screwdriver, disconnect the electrical modulator valve connector on the front side of the frame rail above the front axle. See Fig. 2.

6. Remove the ABS zip tie from the modulator mounting bolt. See Fig. 3.

7. Using special tool NQ307001-1 in kit number NQ307001, disconnect the plastic air line from the modulator

8. Using a 7/8 inch wrench, remove the quick connect fitting from the modulator. See Fig. 6.

9. Using a 7/8 inch wrench, remove the threaded air line that goes from the modulator to the brake chamber. See Fig. 7.

NOTE: The fitting hits the frame rail when it is turned and cannot be removed. However, it is easier to loosen the fitting while the modulator is attached to the vehicle.

10. Using a 23 mm wrench, loosen the brake chamber air line fitting on the modulator valve. See Fig. 8.

11. Using a 1/2 inch socket wrench, remove the two modulator valve mounting bolts, then remove the modulator valve from the vehicle.

12. Using a 23 mm wrench, remove the brake chamber air line fitting from the modulator valve.

IMPORTANT: Be careful when applying sealant to the threads of the air line fitting to avoid internal contamination of the air system.

13. Clean any old sealant off of the threads and apply Loctite® 567 on the quick connect fitting.

14. Using a 23 mm wrench install the brake chamber air line fitting on the new modulator valve.

15. Using a 1/2 inch socket wrench and the new bolts, spacers, and washers from the kit, install the modulator on the vehicle. Tighten the bolts 11 lbf·ft (15 N·m). See Fig. 9, Fig. 10, Fig. 11, and Fig. 12.

16. Using a 7/8 inch wrench, install the threaded air line that goes from the modulator valve to the brake chamber.

IMPORTANT: Be careful when applying sealant to the threads of the air line fitting to avoid internal contamination of the air system.

17. Clean any old sealant off of the threads and apply Loctite® 567 on the quick connect fitting.

18. Using a 7/8 inch wrench install the quick connect fitting on the modulator valve.

19. Attach the plastic air line to the modulator.

20. Install the ABS zip tie on the modulator mounting bolt (to prevent chafing). See Fig. 3.

21. Connect the electrical modulator valve connector.

22. Repeat the procedure for the modulator valve on the other side of the vehicle.

23. Close the hood.

24. Build air pressure to check for leaks and perform six full brake applications in the parking lot to verify proper brake performance.

25. Clean a spot on the base label (Form WAR259). Write the recall number, FL855, on a blank red completion sticker (Form WAR260), and attach it to the base label to indicate this recall has been completed.

Daimler Trucks
North America LLC

May 2021
FL855AB
NHTSA #20V-390

IMPORTANT SAFETY RECALL

See enclosed VIN list

Subject: Braking System Platform Single Modulator Valves

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

The replacement parts have been secured and the final repair is ready. The front left and right single brake modulator valves, located on the frame rails, will be replaced and spacers added.

Repairs will be performed by Daimler Trucks North America authorized service facilities. At this time, please contact an authorized Daimler Trucks 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 Daimler-TrucksNorthAmerica.com/Contactus. Scroll down to “Locate a Dealer” and select the appropriate brand. The Recall will take approximately two hours and will be performed at no charge to you. 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.

We regret any inconvenience this action may cause but feel certain you understand our interest in motor vehicle safety.

WARRANTY CAMPAIGNS DEPARTMENT

Enclosure

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.

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 Trucks North America LLC dealer.

Please speak with your Daimler Trucks North America LLC authorized dealer concerning this matter

SEOCONTENT-START

Defect Information Report
(Section 573.6)
FL-855
Date of Submission: July 2, 2020
Manufacturer: Daimler Trucks eBay North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: X Safety Defect ⃝ Non-Compliance
Vehicle Information
Model Yr. Start: 2017 Model Yr. End: 2021
Make: Freightliner eBay
Model: Cascadia
Production Dates: Begin: 03/08/2016
End: 06/25/2020
Descriptive Information:
Vehicles equipped with suspect modulator valves within the suspect build dates
Number potentially involved: 164,317 Estimated percentage of involve with defect: 1%
Defect / Noncompliance Description
For this Defect/Noncompliance:
Describe the defect or noncompliance:
On certain vehicles, chemical corrosion could affect the functionality of the single brake modulator valve,
which may result in slow release timing of brakes on the affected side. Regular service brakes are
unaffected.
Describe the safety risk:
A slow release of the brake on one side during an active brake request (ie. automatic braking events)
could lead to a brake pull resulting in a sudden change in vehicle direction due to uneven braking on the
front axle increasing the risk of a motor vehicle crash.
Identify any warning which can precede or occur: N/A
If applicable, identify the manufacture of the defective or noncompliant component:
Wabco USA LLC
Involved Components
Component Name: SOLENOID ABS eBay MODULATOR VALVE
Component Description: Solenoid, ABS eBay Modulator Valve, Quick Release
Component Part Number: WAB472 196 025 0
Chronology of Defect / Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the
noncompliance decision.:
May 2019, DTNA received a report of a vehicle pulling to the right, due to an unknown cause, during a
brake event. Upon repairing the vehicle, the dealer was able to isolate the failure to the right single
modulator valve. May 2019-July 2019, DTNA performed a preliminary population and warranty seek.
Warranty indicated 6 claims of a vehicle pull event during an external brake request, where 3 claims
were from a single customer. DTNA had requested parts to be returned for further review. July 2019,
DTNA notified NHTSA Office of Defects Investigation (ODI) of an ongoing investigation relating to brake
pull during an active brake request. August 2019, DTNA received the returned parts and began an
electrical and functional test. Testing indicated parts were within specification. During a functional
evaluation, a pressure differential in air release timing was observed. The parts were shipped to the
supplier for component breakdown and further evaluation. August – September 2019, Supplier evaluated
the returned parts and found blockage of the inlet solenoid from magnesium chloride corrosion
deforming the O-ring. October 2019, DTNA and supplier began reviewing vehicle routes and chemical
wash processes, with ongoing corrosion testing with magnesium chloride and requests to the field for
additional returned parts. 34 valves returned for review from single customer. Failed valves appear to be
isolated to only the right valve and a single route. November 2019, DTNA shared an update of the
ongoing investigation with NHTSA ODI, including the low claim rate. While the investigation continued,
the modulator valves in production vehicles were spaced away from the frame rails to potentially reduce
opportunity of corrosion. January 2020, DTNA provided a status update to NHTSA ODI on testing to
understand detectability and severity. Ongoing corrosion testing and analysis continued by DTNA and
supplier. Corrosion testing with MgCl2 and NaCl was unable to replicate failures observed in field.
February 2020 – April 2020, DTNA worked with customers in various locations to randomly sample parts
to inspect. Twelve valves were returned outside of the salt belt region and 12 inside the salt belt region of
the Northeastern United States and shipped to the supplier for further evaluation. There were no
indications of a valve malfunction on the returned parts. There were still no reports of vehicle pull during
active brake request since mid-2019. May 2020, an additional field service report indicated 13 additional
failures on a separate fleet. DTNA provided a status update with NHTSA ODI on the additional field
report with pending review of returned parts. Customer provided 13 valves from different trucks for
review and these were sent to the supplier for further evaluation. June 2020, DTNA continued corrosion
testing and began analyzing chemical wash and thermal impacts to the valve. Supplier provided a report
of one returned valve that appeared to share a similar failure mode as the initial parts returned from
mid-2019. The remaining 12 valves are under review. From the returned valves prior to May, it was
believed the issue to be isolated to a single customer because there were no confirmed reports from
other customers at this time. The additional field complaint and data obtained in May/June 2020
suggested that additional customers are also impacted in different locations. With eight claims of
failures experienced in the field, even though the failure mode is not fully understood, the issue appeared
to be more systemic, and therefore DTNA, with an abundance of caution, decided to initiate a voluntary
recall campaign to address potential vehicle pull during an active brake request.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for
reimbursement.
Repairs will be performed by Daimler Trucks eBay North America authorized service facilities. Details of the
reimbursement plan will be included in the owner’s notification letter.
Identify the Recall Schedule
Describe the recall schedule for notifications.:
Customer notification will be made by first class mail using Daimler Trucks eBay North America records to
determine the customers affected.
Planned Dealer Notification Begin Date: 08/30/2020
Planned Dealer Notification End Date: 08/30/2020
Planned Owner Notification Begin Date: 08/30/2020
Planned Owner Notification End Date: 08/30/2020
Manufacture’s identification code for this recall (if applicable): FL-855
DTNA Representative;
Andy Jones
Manager
Compliance and Regulatory Affairs

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

Defect Information Report
(Section 573.6)
FL-855
Date of Submission: September 1, 2020
Manufacturer: Daimler Trucks eBay North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: X Safety Defect ⃝ Non-Compliance
Vehicle Information
Model Yr. Start: 2017 Model Yr. End: 2021
Make: Freightliner eBay
Model: Cascadia
Production Dates: Begin: 03/08/2016
End: 06/25/2020
Descriptive Information:
Vehicles equipped with suspect modulator valves within the suspect build dates
Number potentially involved: 164,317 Estimated percentage of involve with defect: 1%
Defect / Noncompliance Description
For this Defect/Noncompliance:
Describe the defect or noncompliance:
On certain vehicles, chemical corrosion could affect the functionality of the single brake modulator valve, which may result in slow release timing of brakes on the affected side. Regular service brakes are unaffected.
Describe the safety risk:
A slow release of the brake on one side during an active brake request (ie. automatic braking events) could lead to a brake pull resulting in a sudden change in vehicle direction due to uneven braking on the front axle increasing the risk of a motor vehicle crash.
Identify any warning which can precede or occur: N/A
If applicable, identify the manufacture of the defective or noncompliant component:
Wabco USA LLC
Involved Components
Component Name: SOLENOID ABS eBay MODULATOR VALVE
Component Description: Solenoid, ABS eBay Modulator Valve, Quick Release
Component Part Number: WAB472 196 025 0
Chronology of Defect / Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision.:
May 2019, DTNA received a report of a vehicle pulling to the right, due to an unknown cause, during a brake event. Upon repairing the vehicle, the dealer was able to isolate the failure to the right single modulator valve. May 2019-July 2019, DTNA performed a preliminary population and warranty seek. Warranty indicated 6 claims of a vehicle pull event during an external brake request, where 3 claims were from a single customer. DTNA had requested parts to be returned for further review. July 2019, DTNA notified NHTSA Office of Defects Investigation (ODI) of an ongoing investigation relating to brake pull during an active brake request. August 2019, DTNA received the returned parts and began an electrical and functional test. Testing indicated parts were within specification. During a functional evaluation, a pressure differential in air release timing was observed. The parts were shipped to the supplier for component breakdown and further evaluation. August – September 2019, Supplier evaluated the returned parts and found blockage of the inlet solenoid from magnesium chloride corrosion deforming the O-ring. October 2019, DTNA and supplier began reviewing vehicle routes and chemical wash processes, with ongoing corrosion testing with magnesium chloride and requests to the field for additional returned parts. 34 valves returned for review from single customer. Failed valves appear to be isolated to only the right valve and a single route. November 2019, DTNA shared an update of the ongoing investigation with NHTSA ODI, including the low claim rate. While the investigation continued, the modulator valves in production vehicles were spaced away from the frame rails to potentially reduce opportunity of corrosion. January 2020, DTNA provided a status update to NHTSA ODI on testing to understand detectability and severity. Ongoing corrosion testing and analysis continued by DTNA and supplier. Corrosion testing with MgCl2 and NaCl was unable to replicate failures observed in field. February 2020 – April 2020, DTNA worked with customers in various locations to randomly sample parts to inspect. Twelve valves were returned outside of the salt belt region and 12 inside the salt belt region of the Northeastern United States and shipped to the supplier for further evaluation. There were no indications of a valve malfunction on the returned parts. There were still no reports of vehicle pull during active brake request since mid-2019. May 2020, an additional field service report indicated 13 additional failures on a separate fleet. DTNA provided a status update with NHTSA ODI on the additional field report with pending review of returned parts. Customer provided 13 valves from different trucks for review and these were sent to the supplier for further evaluation. June 2020, DTNA continued corrosion testing and began analyzing chemical wash and thermal impacts to the valve. Supplier provided a report
of one returned valve that appeared to share a similar failure mode as the initial parts returned from mid-2019. The remaining 12 valves are under review. From the returned valves prior to May, it was believed the issue to be isolated to a single customer because there were no confirmed reports from other customers at this time. The additional field complaint and data obtained in May/June 2020 suggested that additional customers are also impacted in different locations. With eight claims of failures experienced in the field, even though the failure mode is not fully understood, the issue appeared to be more systemic, and therefore DTNA, with an abundance of caution, decided to initiate a voluntary recall campaign to address potential vehicle pull during an active brake request. September 1, 2020, DTNA amended 573 filing to include phase release plan for repairing of FL855.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement.
Affected vehicles will receive a new valve. Repairs will be released in phases based on locations of the vehicle and performed by Daimler Trucks eBay North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter.
Identify the Recall Schedule
Describe the recall schedule for notifications.:
Customer notification will be made by first class mail using Daimler Trucks eBay North America records to determine the customers affected.
Planned Dealer Notification Begin Date: 08/30/2020
Planned Dealer Notification End Date: 08/30/2020
Planned Owner Notification Begin Date: 08/30/2020
Planned Owner Notification End Date: 08/30/2020
Manufacture’s identification code for this recall (if applicable): FL-855
DTNA Representative;
Larissa Stoffels
Executive Manager, Vehicle Safety
Compliance and Regulatory Affairs

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

Defect Information Report
(Section 573.6)
FL-855
Date of Submission: March 19, 2021
Manufacturer: Daimler Trucks eBay North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: X Safety Defect ⃝ Non-Compliance
Vehicle Information
Model Yr. Start: 2017 Model Yr. End: 2021
Make: Freightliner eBay
Model: Cascadia
Production Dates: Begin: 03/08/2016
End: 06/30/2020
Descriptive Information:
Vehicles equipped with suspect modulator valves within the suspect build dates
Number potentially involved: 164,326 Estimated percentage of involve with defect: 1%
Defect / Noncompliance Description
For this Defect/Noncompliance:
Describe the defect or noncompliance:
On certain vehicles, chemical corrosion could affect the functionality of the single brake modulator valve,
which may result in slow release timing of brakes on the affected side. Regular service brakes are
unaffected.
Describe the safety risk:
A slow release of the brake on one side during an active brake request (ie. automatic braking events)
could lead to a brake pull resulting in a sudden change in vehicle direction due to uneven braking on the
front axle increasing the risk of a motor vehicle crash.
Identify any warning which can precede or occur: N/A
If applicable, identify the manufacture of the defective or noncompliant component:
Wabco USA LLC
Involved Components
Component Name: SOLENOID ABS eBay MODULATOR VALVE
Component Description: Solenoid, ABS eBay Modulator Valve, Quick Release
Component Part Number: WAB472 196 025 0
Chronology of Defect / Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the
noncompliance decision.:
May 2019, DTNA received a report of a vehicle pulling to the right, due to an unknown cause, during a
brake event. Upon repairing the vehicle, the dealer was able to isolate the failure to the right single
modulator valve. May 2019-July 2019, DTNA performed a preliminary population and warranty seek.
Warranty indicated 6 claims of a vehicle pull event during an external brake request, where 3 claims
were from a single customer. DTNA had requested parts to be returned for further review. July 2019,
DTNA notified NHTSA Office of Defects Investigation (ODI) of an ongoing investigation relating to brake
pull during an active brake request. August 2019, DTNA received the returned parts and began an
electrical and functional test. Testing indicated parts were within specification. During a functional
evaluation, a pressure differential in air release timing was observed. The parts were shipped to the
supplier for component breakdown and further evaluation. August – September 2019, Supplier evaluated
the returned parts and found blockage of the inlet solenoid from magnesium chloride corrosion
deforming the O-ring. October 2019, DTNA and supplier began reviewing vehicle routes and chemical
wash processes, with ongoing corrosion testing with magnesium chloride and requests to the field for
additional returned parts. 34 valves returned for review from single customer. Failed valves appear to be
isolated to only the right valve and a single route. November 2019, DTNA shared an update of the
ongoing investigation with NHTSA ODI, including the low claim rate. While the investigation continued,
the modulator valves in production vehicles were spaced away from the frame rails to potentially reduce
opportunity of corrosion. January 2020, DTNA provided a status update to NHTSA ODI on testing to
understand detectability and severity. Ongoing corrosion testing and analysis continued by DTNA and
supplier. Corrosion testing with MgCl2 and NaCl was unable to replicate failures observed in field.
February 2020 – April 2020, DTNA worked with customers in various locations to randomly sample parts
to inspect. Twelve valves were returned outside of the salt belt region and 12 inside the salt belt region of
the Northeastern United States and shipped to the supplier for further evaluation. There were no
indications of a valve malfunction on the returned parts. There were still no reports of vehicle pull during
active brake request since mid-2019. May 2020, an additional field service report indicated 13 additional
failures on a separate fleet. DTNA provided a status update with NHTSA ODI on the additional field
report with pending review of returned parts. Customer provided 13 valves from different trucks for
review and these were sent to the supplier for further evaluation. June 2020, DTNA continued corrosion
testing and began analyzing chemical wash and thermal impacts to the valve. Supplier provided a report
of one returned valve that appeared to share a similar failure mode as the initial parts returned from
mid-2019. The remaining 12 valves are under review. From the returned valves prior to May, it was
believed the issue to be isolated to a single customer because there were no confirmed reports from
other customers at this time. The additional field complaint and data obtained in May/June 2020
suggested that additional customers are also impacted in different locations. With eight claims of
failures experienced in the field, even though the failure mode is not fully understood, the issue appeared
to be more systemic, and therefore DTNA, with an abundance of caution, decided to initiate a voluntary
recall campaign to address potential vehicle pull during an active brake request. September 1, 2020,
DTNA amended 573 filing to include phase release plan for repairing of FL855. March 2021 population
and manufacturing dates updated.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for
reimbursement.
Affected vehicles will receive a new valve. Repairs will be released in phases based on locations of the
vehicle and performed by Daimler Trucks eBay North America authorized service facilities. Details of the
reimbursement plan will be included in the owner’s notification letter.
Identify the Recall Schedule
Describe the recall schedule for notifications.:
Customer notification will be made by first class mail using Daimler Trucks eBay North America records to
determine the customers affected.
Planned Dealer Notification Begin Date: 08/30/2020
Planned Dealer Notification End Date: 08/30/2020
Planned Owner Notification Begin Date: 08/30/2020
Planned Owner Notification End Date: 08/30/2020
Manufacture’s identification code for this recall (if applicable): FL-855
DTNA Representative;
Larissa Stoffels
Executive Manager, Vehicle Safety
Compliance and Regulatory Affairs

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

Amended Defect Information Report
(Section 573.6)
FL-855
Date of Submission: April 1, 2021
Manufacturer: Daimler Trucks eBay North America LLC
P.O. BOX 3849
Portland, Oregon 97208
Type of Report: X Safety Defect ⃝ Non-Compliance
Vehicle Information
Model Yr. Start: 2017 Model Yr. End: 2021
Make: Freightliner eBay
Model: Cascadia
Production Dates: Begin: 03/08/2016
End: 06/30/2020
Descriptive Information:
Cascadia vehicles equipped with modulator valve part number WAB472 196 025 0, built within the suspect build dates. Vehicles built outside the suspect build dates have painted modulator valves.
Number potentially involved: 164,326 Estimated percentage of involve with defect: 1%
Defect / Noncompliance Description
For this Defect/Noncompliance:
Describe the defect or noncompliance:
On certain vehicles, chemical corrosion could affect the functionality of the single brake modulator valve, which may result in slow release timing of brakes on the affected side. Regular service brakes are unaffected.
Describe the safety risk:
A slow release of the brake on one side during an active brake request (ie. automatic braking events) could lead to a brake pull resulting in a sudden change in vehicle direction due to uneven braking on the front axle increasing the risk of a motor vehicle crash.
Identify any warning which can precede or occur: N/A
If applicable, identify the manufacture of the defective or noncompliant component:
Wabco USA LLC
Involved Components
Component Name: SOLENOID ABS eBay MODULATOR VALVE
Component Description: Solenoid, ABS eBay Modulator Valve, Quick Release
Component Part Number: WAB472 196 025 0
Chronology of Defect / Noncompliance Determination
Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision.:
May 2019, DTNA received a report of a vehicle pulling to the right, due to an unknown cause, during a brake event. Upon repairing the vehicle, the dealer was able to isolate the failure to the right single modulator valve. May 2019-July 2019, DTNA performed a preliminary population and warranty seek. Warranty indicated 6 claims of a vehicle pull event during an external brake request, where 3 claims were from a single customer. DTNA had requested parts to be returned for further review. July 2019, DTNA notified NHTSA Office of Defects Investigation (ODI) of an ongoing investigation relating to brake pull during an active brake request. August 2019, DTNA received the returned parts and began an electrical and functional test. Testing indicated parts were within specification. During a functional evaluation, a pressure differential in air release timing was observed. The parts were shipped to the supplier for component breakdown and further evaluation. August – September 2019, Supplier evaluated the returned parts and found blockage of the inlet solenoid from magnesium chloride corrosion deforming the O-ring. October 2019, DTNA and supplier began reviewing vehicle routes and chemical wash processes, with ongoing corrosion testing with magnesium chloride and requests to the field for additional returned parts. 34 valves returned for review from single customer. Failed valves appear to be isolated to only the right valve and a single route. November 2019, DTNA shared an update of the ongoing investigation with NHTSA ODI, including the low claim rate. While the investigation continued, the modulator valves in production vehicles were spaced away from the frame rails to potentially reduce opportunity of corrosion. January 2020, DTNA provided a status update to NHTSA ODI on testing to understand detectability and severity. Ongoing corrosion testing and analysis continued by DTNA and supplier. Corrosion testing with MgCl2 and NaCl was unable to replicate failures observed in field. February 2020 – April 2020, DTNA worked with customers in various locations to randomly sample parts to inspect. Twelve valves were returned outside of the salt belt region and 12 inside the salt belt region of the Northeastern United States and shipped to the supplier for further evaluation. There were no indications of a valve malfunction on the returned parts. There were still no reports of vehicle pull during active brake request since mid-2019. May 2020, an additional field service report indicated 13 additional failures on a separate fleet. DTNA provided a status update with NHTSA ODI on the additional field
report with pending review of returned parts. Customer provided 13 valves from different trucks for review and these were sent to the supplier for further evaluation. June 2020, DTNA continued corrosion testing and began analyzing chemical wash and thermal impacts to the valve. Supplier provided a report of one returned valve that appeared to share a similar failure mode as the initial parts returned from mid-2019. The remaining 12 valves are under review. From the returned valves prior to May, it was believed the issue to be isolated to a single customer because there were no confirmed reports from other customers at this time. The additional field complaint and data obtained in May/June 2020 suggested that additional customers are also impacted in different locations. With eight claims of failures experienced in the field, even though the failure mode is not fully understood, the issue appeared to be more systemic, and therefore DTNA, with an abundance of caution, decided to initiate a voluntary recall campaign to address potential vehicle pull during an active brake request. September 1, 2020, DTNA amended 573 filing to include phase release plan for repairing of FL855. March 2021 population and manufacturing dates updated. April 1, 2021, DTNA revised the descriptive information.
Identify the Remedy
Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement.
Affected vehicles will receive a new valve. Repairs will be released in phases based on locations of the vehicle and performed by Daimler Trucks eBay North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter.
Identify the Recall Schedule
Describe the recall schedule for notifications.:
Customer notification will be made by first class mail using Daimler Trucks eBay North America records to determine the customers affected.
Planned Dealer Notification Begin Date: 08/30/2020
Planned Dealer Notification End Date: 08/30/2020
Planned Owner Notification Begin Date: 08/30/2020
Planned Owner Notification End Date: 08/30/2020
Manufacture’s identification code for this recall (if applicable): FL-855
DTNA Representative;
Larissa Stoffels
Executive Manager, Vehicle Safety
Compliance and Regulatory Affairs

5 Affected Products

Vehicle

21 Associated Documents

Defect Notice 573 Report

RCLRPT-20V390-9612.PDF 214.171KB

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Campaign Number	Kit Number	Part Description	Part Number	Qty. per Kit
FL855A	25-FL855-001	SOLENOID,ABS MODULATOR VALVE, PAINTED	25-FL855-000	2 ea
		SPACER-AL,.375 ID.75 O	23-12240-025	4 ea
		SCREW-HEX FLANGE,M8X1.25X90	23-14064-090	4 ea
		WASHER-FLAT,STEEL,HARDENED,3/8 IN	23-09114-002	4 ea
		NUT	N913023 008003	4 ea
	N/A	BLANK COMPLETION STICKER	WAR260	1 ea

MAKE	MODEL	YEAR

FREIGHTLINER	CASCADIA	2017-2021

Summary

Remedy

Notes

Daimler Trucks North America LLC

IMPORTANT SAFETY RECALL

Subject: Braking System Platform Single Modulator Valves

Daimler Trucks North America LLC

Recall Campaign

Subject: Braking System Platform Single Modulator Valves

General Information

Work Instructions

Replacement Parts

Removed Parts

Labor Allowance

Claims for Credit

Copy of Notice to Owners in Phase One

Subject: Braking System Platform Single Modulator Valves

Copy of Notice to Owners in Remaining Phases

Subject: Braking System Platform Single Modulator Valves

Reimbursement to Customers for Repairs Performed Prior to Recall

Work Instructions

Subject: Braking System Platform Single Modulator Valves

Front Modulator Valve Replacement

Daimler Trucks North America LLC

Subject: Braking System Platform Single Modulator Valves

Reimbursement to Customers for Repairs Performed Prior to Recall

Latest Recalls Documents

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Daimler Trucks
North America LLC

Daimler Trucks
North America LLC

Daimler Trucks
North America LLC