The Recall Desk
SevereNHTSA·21V120000·Announced 2021-02-25

Thomas Built Buses Recalls Saf-T-Liner C2 School Buses for Engine Software Defect

Daimler Trucks North America is recalling 2019-2021 Thomas Built Buses Saf-T-Liner C2 school buses because engine software may fail to limit speed or torque, increasing crash risk.

What this means for you

Illness, injury, or structural failure has been reported. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect where safety-related functions like braking and stability control may fail, which aligns with the rubric criteria for a Severe (4) rating.

Plain-English summary

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 recall involves 159 vehicles.

The engine control module software may be calibrated incorrectly, causing the engine to not limit engine speed or torque as intended for safety-related functions such as vehicle braking, traction and stability control, speed control, or collision avoidance. If these safety-related functions do not function properly, it can increase the risk of a crash.

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 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236.

The recalled product

Product
THOMAS BUILT BUSES SAF-T-LINER C2
Brand
THOMAS BUILT BUSES
Manufacturer
Daimler Trucks North America, LLC
Category
Vehicle — School Bus
Hazard
Affected units
159

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (1)

  • SAF-T-LINER C2

Distribution

Distributed nationwide across the United States.

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