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NHTSARecalled 2021-02-25

Daimler Trucks North America, LLC — ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

Is my product affected?

2019 THOMAS BUILT BUSES SAF-T-LINER C2; 2020 THOMAS BUILT BUSES SAF-T-LINER C2; 2021 THOMAS BUILT BUSES SAF-T-LINER C2

  • Brand THOMAS BUILT BUSES

Check against the official notice below — it lists the full affected range.

What happened

Daimler Trucks North America is recalling certain 2019-2021 Thomas Built Buses Saf-T-Liner C2 school buses equipped with Cummins B6.7N engines due to a software issue in the engine control module. The software may be calibrated incorrectly, which can prevent the engine from properly limiting engine speed and torque, potentially affecting safety systems including vehicle braking, traction control, stability control, speed control, and collision avoidance. This malfunction could increase the risk of a crash.

To remedy the issue, Cummins dealers will recalibrate the engine control module at no charge to owners. Owner notifications were mailed on March 29, 2021. Affected consumers should contact DTNA customer service at 1-800-547-0712 to arrange the recalibration service, and can reference recall number FL-879.

Written by software from the official notice below. Not reviewed by a lawyer.

Hazard

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.

What should I do?

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.

Details from the source

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.

Source

Official record: NHTSA ↗

Republished from the official source above; details can change — the source record controls.

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