Recall 21V120000
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Defect Description
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2021 Thomas Built Buses Saf-T-Liner C2 school buses equipped with Cummins B6.7N engines. The engine control module software may be calibrated incorrectly, causing the engine to not limit engine speed or torque as intended for certain safety-related functions such as vehicle braking, traction and stability control, speed control, or collision avoidance.
Safety Consequence
If safety-related functions such as vehicle braking, stability, speed, and collision avoidance do not function properly, it can increase the risk of a crash.
Remedy
DTNA will work with the engine manufacturer Cummins Inc. to notify owners, and Cummins dealers will recalibrate the engine control module, free of charge. Owner notifications were mailed on March 29, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA number for this recall is FL-879.
Affected Vehicles
| Year | Make | Model |
|---|---|---|
| 2019 | THOMAS BUILT BUSES | SAF-T-LINER C2 |
| 2020 | THOMAS BUILT BUSES | SAF-T-LINER C2 |
| 2021 | THOMAS BUILT BUSES | SAF-T-LINER C2 |
Check your vehicle: Visit NHTSA.gov and enter your VIN to see if your specific vehicle is affected.