School Bus May Reverse Faster than Expected – 2018-2021 Blue Bird All American & Vision School Buses

Defect Notice 573 Report

RCLRPT-23V276-3231.PDF 214.783KB

Recall Acknowledgement

RCAK-23V276-8767.pdf 698.527KB

Remedy Instructions and TSB

RCRIT-23V276-8718.pdf 61.666KB

SEOCONTENT-START

Cummins Inc.
Box 3005
Columbus, IN 47202-3005 USA
Mail Code: 40911
Phone: 1 800 CUMMINS
care.cummins.com
*** IMPORTANT SAFETY RECALL***
NHTSA Recall No. 23E-025
Cummins Campaign #C2677
Final Notice
May 17, 2024
Dear Cummins Customer:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor
Vehicle Safety Act. Cummins Inc. has decided that a defect which relates to motor vehicle
safety exists in certain PowerDrive 7000 BES CM0904 EV104B electric drives that were
manufactured between June 1, 2018 and October 30, 2021.
This notice applies to your electric drives listed on the enclosed table.
WHY IS A RECALL BEING CONDUCTED?
Due to a software calibration issue, if the driver releases the brake while the vehicle is in
reverse pointing downhill on a grade greater than approximately 7%, the System Control
Module may activate the anti-rollback feature, causing the vehicle to move backwards uphill at a
rate that may exceed the driver’s expectations, increasing the risk of a crash.
WHAT ARE WE DOING ABOUT THE PROBLEM?
Cummins has released field Safety Campaign C2677 “Vehicle Roll-Back Safety Campaign” to
correct this condition by updating the software calibration in the System Control Module. The
new calibration is currently available at Cummins Distributors and authorized Warranty Dealers.
The repair will be completed free of charge (parts and labor) and most applications will require
approximately 1 hour to complete.
WHAT SHOULD YOU DO?
Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this
campaign performed on your electric drive. The distributor or dealer will work with you to
schedule the best date to complete this repair.
In the meantime, Cummins advises drivers to use caution when reversing the vehicle on a hill.
Cummins Inc.
Box 3005
Columbus, IN 47202-3005 USA
Mail Code: 40911
Phone: 1 800 CUMMINS
care.cummins.com
If you have not registered your Cummins product, please complete the enclosed registration card
or register your product at https://prodreg.cummins.com/prodreg/#/webform/contactInfo.
If you are no longer the owner, please forward this notice to the new owner or provide the new
owner’s contact information to Cummins at cummins.campaign.administration@cummins.com
so that we can notify them of this recall.
If you previously paid to have this recall performed on your vehicle, you may be eligible for
reimbursement. Please contact Cummins Care at the number below for more information.
Federal law requires vehicle lessors receiving this recall notice to forward a copy of this
notice to the lessee within ten (10) days. Also, it is a violation of Federal law for a dealer
to deliver new vehicle or equipment covered by this recall notice under a sale or lease
until the defect has been remedied.
WHO SHOULD YOU CONTACT IF YOU HAVE FURTHER QUESTIONS OR CONCERNS?
If you have questions or concerns about this recall, please contact your local Cummins
Distributor or authorized warranty dealer. You may also contact Cummins Care at 1-800-
CUMMINS (1-800-286-6467), or visit our website at care.cummins.com.
If you have a complaint relative to this recall, you may report it to the following:
Administrator
National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153);
or go to http://www.safercar.gov.
Cummins is taking this action in the interest of safety and satisfaction with our products. We
apologize for any inconvenience and thank you for your attention to this matter.
Sincerely,
Campaign Administrator
Cummins Inc.

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

A CUMMINS FIELD CAMPAIGN
Please Deliver To: Service Managers and Warranty Decision Makers
FROM: Cummins Global Warranty Administration Communications
Subject: BES CM0904 EV104B Rollback Calibration Safety Campaign
Number: C2677 Date: 04-May-2023
Expires: 01-May-2043 (U.S./Canada)
01-May-2043 (International)
Attention: U.S. / Canadian Dealers
U.S. / Canadian Distr./Branches and Div. Offices (Automotive)
If additional information is required, please contact your Cummins Warranty Operations Group Leader.
DESCRIPTION:
This Safety Campaign is being issued to update the System Control Module on certain BES CM0904 EV104B units
currently in the field. This field action authorizes technicians to download the latest calibration for the System Control
Module.
ACTION:
In order to qualify for repair under this field action, an engine:
1 will be covered Regardless of coverage status, and
2 must show as OPEN on QuickServe® Online for this field action.
NOTE: The SSN list is attached for reference.
After verifying that the engine meets the above requirements, perform the following actions:
1 Download the latest calibrations for the SCM; version BL_3_0_1_31 or later. Please refer to Attachment B
(SCM Calibration Procedure) and Attachment C (MotoService Software Setup Downloading) for detail
instructions on the calibration download.
MATERIAL DISPOSITION:
There are no materials involved in the field action.
REIMBURSEMENTS:
Parts:
There are no parts covered in this field action.
NOTE: SRTs to gain access that are required to complete the repair, that are sufficiently explained in the claim
narrative, may also be claimed on this action.
NOTE: SRTs are listed as OPTIONAL. Select the appropriate SRTs for the repair performed. SRT 19-1JP and Admin
should ONLY be claimed if the unit DID require calibration. SRT 17-902 and Admin should ONLY be claimed if the unit
DID NOT require calibration.
Labor using applicable Access Code and Time:
SRT Code Description Time
00-90X Administrative time
17-902 CAMPAIGN CHECK (OPTIONAL)
19-1JP SYSTEM CONTROL MODULE CALIBRATION CODE –
TRANSFER (CMI) (OPTIONAL)
Travel:
Travel is covered under this field action. Towing is not covered under this field action.
Other Claimables:
Consumables are not covered under this field action.
Claim Instructions:
For Cummins Dealers, claims for this Field Campaign must be filed via RAPIDSERVE™ Web (rsw.cummins.com).
For information regarding RAPIDSERVE™ Web, please reference the “Warranty” tab in QuickServe® Online. If there
are additional questions, please contact your local Cummins Distributor.
Account Code: ………………………………………………………………………………………………………………………………………….. 65
Pay Code: ………………………………………………………………………………………………………….. North America Distributor = X
Pay Code: ……………………………………………………………………………………………………………….. North America Dealer = D
Pay Code: ………………………………………………………………………………………………………………. International Distributor = I
Pay Code: ………………………………………………………………………………………………………………….. International Dealer = R
Failure Code: ………………………………………………………………………………………………………………………………….. WCLPEA
Attachments
c2677_ssn-list.xlsxc2677_attachment-b.pdfc2677_attachment-c.pdf

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

Cummins Inc.
Box 3 005
Columbus, I N 4720 2-3005 US A
Mai l Code: 4091 1
P hon e: 1 800 CUMMINS
care. cummins. com
*** IMPORTANT SAFETY RECALL***
NHTSA Recall No. 23E-025
Cummins Campaign #C2677
May 12, 2023
Dear Cummins Customer:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor
Vehicle Safety Act. Cummins Inc. has decided that a defect which relates to motor vehicle
safety exists in certain PowerDrive 7000 BES CM0904 EV104B electric drives that were
manufactured between June 1, 2018 and October 30, 2021.
This notice applies to your electric drives listed on the enclosed table.
WHY IS A RECALL BEING CONDUCTED?
Due to a software calibration issue, if the driver releases the brake while the vehicle is in
reverse pointing downhill on a grade greater than approximately 7%, the System Control
Module may activate the anti-rollback feature, causing the vehicle to move backwards uphill at a
rate that may exceed the driver’s expectations, increasing the risk of a crash.
WHAT ARE WE DOING ABOUT THE PROBLEM?
Cummins has released field Safety Campaign C2677 “Vehicle Roll-Back Safety Campaign” to
correct this condition by updating the software calibration in the System Control Module. The
new calibration is currently available at Cummins Distributors and authorized Warranty Dealers.
The repair will be completed free of charge (parts and labor) and most applications will require
approximately 1 hour to complete.
WHAT SHOULD YOU DO?
Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this
campaign performed on your electric drive. The distributor or dealer will work with you to
schedule the best date to complete this repair.
In the meantime, Cummins advises drivers to use caution when reversing the vehicle on a hill.
Cummins Inc.
Box 3 005
Columbus, I N 4720 2-3005 US A
Mai l Code: 4091 1
P hon e: 1 800 CUMMINS
care. cummins. com
If you have not registered your Cummins product, please complete the enclosed registration card
or register your product at https://prodreg.cummins.com/prodreg/#/webform/contactInfo.
If you are no longer the owner, please forward this notice to the new owner or provide the new
owner’s contact information to Cummins at [email protected]
so that we can notify them of this recall.
If you previously paid to have this recall performed on your vehicle, you may be eligible for
reimbursement. Please contact Cummins Care at the number below for more information.
Federal law requires vehicle lessors receiving this recall notice to forward a copy of this
notice to the lessee within ten (10) days. Also, it is a violation of Federal law for a dealer
to deliver new vehicle or equipment covered by this recall notice under a sale or lease
until the defect has been remedied.
WHO SHOULD YOU CONTACT IF YOU HAVE FURTHER QUESTIONS OR CONCERNS?
If you have questions or concerns about this recall, please contact your local Cummins
Distributor or authorized warranty dealer. You may also contact Cummins Care at 1-800-
CUMMINS (1-800-286-6467), or visit our website at care.cummins.com.
If you have a complaint relative to this recall, you may report it to the following:
Administrator
National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153);
or go to http://www.safercar.gov.
Cummins is taking this action in the interest of safety and satisfaction with our products. We
apologize for any inconvenience and thank you for your attention to this matter.
Sincerely,
Campaign Administrator
Cummins Inc.

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

Cummins Inc.
Box 3 005
Columbus, I N 4720 2-3005 US A
Mai l Code: 4091 1
P hon e: 1 800 CUMMINS
care. cummins. com
*** IMPORTANT SAFETY RECALL***
NHTSA Recall No. 23E-025
Cummins Campaign #C2677
May 12, 2023
Dear Cummins Customer:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor
Vehicle Safety Act. Cummins Inc. has decided that a defect which relates to motor vehicle
safety exists in certain PowerDrive 7000 BES CM0904 EV104B electric drives that were
manufactured between June 1, 2018 and October 30, 2021.
This notice applies to your electric drives listed on the enclosed table.
WHY IS A RECALL BEING CONDUCTED?
Due to a software calibration issue, if the driver releases the brake while the vehicle is in
reverse pointing downhill on a grade greater than approximately 7%, the System Control
Module may activate the anti-rollback feature, causing the vehicle to move backwards uphill at a
rate that may exceed the driver’s expectations, increasing the risk of a crash.
WHAT ARE WE DOING ABOUT THE PROBLEM?
Cummins has released field Safety Campaign C2677 “Vehicle Roll-Back Safety Campaign” to
correct this condition by updating the software calibration in the System Control Module. The
new calibration is currently available at Cummins Distributors and authorized Warranty Dealers.
The repair will be completed free of charge (parts and labor) and most applications will require
approximately 1 hour to complete.
WHAT SHOULD YOU DO?
Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this
campaign performed on your electric drive. The distributor or dealer will work with you to
schedule the best date to complete this repair.
In the meantime, Cummins advises drivers to use caution when reversing the vehicle on a hill.
Cummins Inc.
Box 3 005
Columbus, I N 4720 2-3005 US A
Mai l Code: 4091 1
P hon e: 1 800 CUMMINS
care. cummins. com
If you have not registered your Cummins product, please complete the enclosed registration card
or register your product at https://prodreg.cummins.com/prodreg/#/webform/contactInfo.
If you are no longer the owner, please forward this notice to the new owner or provide the new
owner’s contact information to Cummins at [email protected]
so that we can notify them of this recall.
If you previously paid to have this recall performed on your vehicle, you may be eligible for
reimbursement. Please contact Cummins Care at the number below for more information.
Federal law requires vehicle lessors receiving this recall notice to forward a copy of this
notice to the lessee within ten (10) days. Also, it is a violation of Federal law for a dealer
to deliver new vehicle or equipment covered by this recall notice under a sale or lease
until the defect has been remedied.
WHO SHOULD YOU CONTACT IF YOU HAVE FURTHER QUESTIONS OR CONCERNS?
If you have questions or concerns about this recall, please contact your local Cummins
Distributor or authorized warranty dealer. You may also contact Cummins Care at 1-800-
CUMMINS (1-800-286-6467), or visit our website at care.cummins.com.
If you have a complaint relative to this recall, you may report it to the following:
Administrator
National Highway Traffic Safety Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153);
or go to http://www.safercar.gov.
Cummins is taking this action in the interest of safety and satisfaction with our products. We
apologize for any inconvenience and thank you for your attention to this matter.
Sincerely,
Campaign Administrator
Cummins Inc.

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

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-276
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Blue Bird Body Company APR 18, 2023 NHTSA Recall No. : 23V-276 Manufacturer Recall No. : R23CG (SB) Manufacturer Information :
Manufacturer Name : Blue Bird Body Company Address : P.O. Box 937
402 Blue Bird Boulevard Fort Valley GA 31030
Company phone : 478-822-2242
Population :
Number of potentially involved : 419 Estimated percentage with defect : 100 %
Vehicle Information :
Vehicle 1 : 2018-2021 Blue Bird All American Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : HYBRID ELECTRIC
Descriptive Information : Blue Bird and Cummins is recalling the System Control Module (SCM) for certain electric drivetrain systems. This recall relates to the software calibration installed in these SCM’s and includes the entire population of SCM’s built within the specified dates and installed as original equipment in certain school buses.
Production Dates : AUG 01, 2018 – APR 20, 2022
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2018-2021 Blue Bird Vision
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : HYBRID ELECTRIC
Descriptive Information : Blue Bird and Cummins is recalling the System Control Module (SCM) for certain electric drivetrain systems. This recall relates to the software calibration installed in these SCM’s and includes the entire population of SCM’s built within the specified dates and installed as original equipment in certain school buses.
Production Dates : JAN 19, 2019 – MAR 16, 2022
VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-276 Page 2 Description of Defect :
Description of the Defect : The SCM may activate the anti-rollback feature, causing the vehicle to move backwards uphill at a rate that may exceed certain driver’s expectations. This may occur once the driver releases the brake while the vehicle is in reverse and pointing downhill on a grade greater than approximately 7 percent.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : This condition may increase the risk of a crash.
Description of the Cause : The cause is a software calibration issue. Identification of Any Warning
that can Occur : None Involved Components : Component Name 1 : Software Calibration (Cummins) Component Description : SMC Calibration Software (Cummins)
Component Part Number : 6373041 SMC Calibration Software (Cummins) Supplier Identification : Component Manufacturer
Name : Cummins Incorporated Address : 500 Jackson Street
Columbus Indiana 47201
Country : United States Chronology :
July 20, 2022: Cummins received a report on two Blue Bird buses at a Canadian fleet customer. No accidents or injuries were reported. Both Blue Bird & Cummins Field Service Engineers were present during the initial discovery to evaluate the complaint.
July 21, through August 12, 2022: Cummins conducted engineering tests & was able to replicate the condition. August 12, 2022 through September 30, 2022: Cummins conducted further testing to understand the cause & in conjunction with this testing, developed a preliminary calibration that addressed this condition on the vehicles from which the complaint originated.
September 30 through November 28, 2022: Cummins began a Product Safety Hazard Analysis & constituted a The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-276
Page 3
The information contained in this report was submitted pursuant to 49 CFR §573
cross-functional team to conduct further vehicle evaluation comparing the vehicle performance with the original calibration & the preliminary new calibration.
November 28, 2022 through January 30, 2023: Cummins gathered additional info regarding the operation of the anti-rollback feature, conducted an additional vehicle evaluation, & completed the Product Safety Hazard Analysis.
February 14, 2023 through March 20, 2023: Cummins escalated the issue through multiple reviews in its Product Safety Defect Determination process including gathering additional information to answer questions from the Product Safety Defect Board & arranging a vehicle demonstration of the issue for the members of the Board.
March 20, 2023: Based upon the information developed during the investigation & the additional info, Cummins Product Safety Defect Board decided to conduct a safety campaign to address this condition. To date, there have been no reports of accidents or injuries related to this condition, & no further complaints (other than the initial two complaints that prompted this investigation).
March 28, 2023: Blue Bird was notified by Cummins of the Power Drive 7000 BES CM0904 EV104B Safety Recall.
April 12, 2023: Blue Bird authorized a recall to correct this condition.
Description of Remedy :
Description of Remedy Program : The remedy is to update the SCM software calibration. Cummins will
reimburse the labor cost of the repair related to this recall at no cost to the Dealer or to the vehicle owner. A recall specific reimbursement plan will be provided on the Cummins Recall Portal for those units not covered by the limited warranty. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The software calibration part number will not change, but the remedy Calibration Number will be a new unique number.
Cummins Production of this product ceased on October 30, 2021. Therefore, no correction was necessary for Production units. Recall Schedule :
Description of Recall Schedule : Dealer and Owner Notifications are to be issued on or before May 26,
2023.
Parts are not required; this is a software calibration.
Cummins will reimburse the labor cost of the repair related to this recall at no cost to the Dealer or to the vehicle owner. A recall specific reimbursement plan will be provided on the Cummins Recall Portal for those units not covered by the limited warranty.
Planned Dealer Notification Date : MAY 26, 2023 – MAY 26, 2023
Planned Owner Notification Date : MAY 26, 2023 – MAY 26, 2023
* NR – Not Reported

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