FL960 Unexpected Shutdown of Battery Management System – 2023 Thomas Built Busses SAF-T-LINER C2 JOULEY School Busses

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November 23, 2022 NHTSA CAMPAIGN NUMBER: 22V876000

Unexpected Shutdown of Battery Management System

An unexpected shut down can result in a sudden loss of drive power, increasing the risk of a crash.

 

NHTSA Campaign Number: 22V876

Manufacturer Daimler Trucks North America, LLC

Components ELECTRICAL SYSTEM

Potential Number of Units Affected 159

 

Summary

Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Thomas Built Busses SAF-T-LINER C2 JOULEY school busses. An insufficient connection in the battery pack may cause the battery management system to shut down unexpectedly.

 

Remedy

Dealers will inspect and replace the battery pack, as necessary, free of charge. Owner notification letters were mailed July 14, 2023. Owners may contact DTNA customer service at 1-800-547-0712. DTNA’s number for this recall is FL-960.

 

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.nhtsa.gov.

 

Check for Daimler Trucks North America Recalls

 


July 2023
FL960AB
NHTSA #22V-876 (School Bus)
NHTSA #22V-877
Transport Canada #2022-674 (School Bus)

Subject: Foil Pack Harness

Models Affected: Specific model year 2023 Freightliner Custom
Chassis MT50e vans and Thomas Built Saf-T-Liner C2 Jouley school
buses manufactured December 21, 2021, through September 2, 2022.

General Information

Daimler Truck North America LLC (DTNA), on behalf of its wholly owned subsidiaries, Freightliner Custom Chassis and Thomas Built Buses has decided that a defect that relates to motor vehicle safety exists on the vehicles mentioned above.

On the affected vehicles, due to a defect in the foil harness, battery packs may lose communication with the Battery Management System resulting in a loss of vehicle power. This may result in an increased risk of a crash without any prior warning.

A Daimler Truck North America authorized service facility will inspect the school buses, and the battery pack will be replaced if necessary. All MT50e’s will require a battery pack replacement.

There are approximately 160 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 and/or part number(s) listed below from your facing Parts Distribution Center.

Note: Battery replacement is only required for MT50e vans. The Jouley buses require an inspection and only replace if failed. Ship the used battery pack to Proterra, Attn: Kelly Irving, 1605 Poplar Dr. Ext, Greer, SC 29651. If our records show your dealership has ordered any vehicle(s) involved in campaign number FL960, a list of the customers and vehicle identification numbers will be available on DTNAPortal. Please refer to this list when ordering parts for this recall.

Table 1 – Replacement Parts for FL960

Campaign Number Part Description Part Number Qty.
FL960B BATTERY-HV,PROTERRA,MT50E 66-25763-000 1 ea
FL960AB BLANK COMPLETION STICKER WAR260 1 ea

Table 1

 

Work Instructions

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Chronology :

DTNA learned on 11/18/2022 of the intent of Proterra to recall for a potential defect. 11/21/2022, DTNA immediately began investigating the battery serial list provided by Proterra to find potentially affected vehicles and locate uninstalled components.

On 11/23/2022 out of an abundance of caution, DTNA decided to recall.

In December, 2022, DTNA received a revised list of affected battery serial numbers from the supplier and, upon cross-referencing that list with production vehicle delivery information, determined that the population of affected US SAF-T-LINER C2 JOULEY units was one hundred-thirty five (twenty-four less than originally reported); DTNA amends this notification accordingly.

On May 1, 2023, Proterra first notified DTNA of additional suspect batteries and at that time sent to DTNA a list of additional potential suspect battery serials not included on the initial population list. DTNA immediately matched these battery serials to VINs. In doing so, DTNA found 16 additional SAF-T-LINER C2 JOULEY vehicles not earlier identified as part of the recall population; DTNA amends this notification accordingly.

DTNA is not aware of any field occurrences related to this failure. There are no death and/or injuries.

On June 27, 2023, DTNA amended its Defect Information Report to update the description of the remedy to clarify that the battery packs on the affected vehicles will be inspected and if needed, the battery packs will be replaced.

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
THOMAS BUILT BUSES SAF-T-LINER C2 2023

 


13 Associated Documents

Recall Acknowledgement

RCAK-22V876-9459.pdf 645.75KB

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Defect Information Report

RMISC-22V876-5616.pdf 841.607KB

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Defect Notice 573 Report

RCLRPT-22V876-2331.PDF 213.942KB

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Recall 573 Report – December 20, 2022

RCLRPT-22V876-1485.PDF 214.153KB

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Amended Defect Information Report

RMISC-22V876-5328.pdf 841.584KB

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ISSUED Interim Owner Notification Letter(Part 577)

RIONL-22V876-8160.pdf 113.542KB

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Manufacturer Notices(to Dealers,etc)

RCMN-22V876-2718.pdf 373.265KB

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Recall 573 Report – May 5, 2023

RCLRPT-22V876-2002.PDF 214.382KB

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Amended Defect Information Report

RMISC-22V876-5465.pdf 864.876KB

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Recall 573 Report – June 27, 2023

RCLRPT-22V876-6606.PDF 214.651KB

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Amended Defect Information Report

RMISC-22V876-9096.pdf 323.816KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V876-8970.pdf 187.809KB

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Manufacturer Notices(to Dealers,etc)

RCMN-22V876-5601.pdf 649.217KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V876&docType=RCL

 


 

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