2021 Thomas Built Buses Saf-T-Liner C2 Recall: If the service brake pedal is pressed and then released while the parking…
NHTSA campaign 20V787000 · Service Brakes, Air · filed Dec 16, 2020 · verified Jul 30, 2026
The defect
Daimler Trucks North America, LLC (DTNA) is recalling certain 2021 Thomas Built Saf-T-Liner C2 Jouley electric school buses. If the service brake pedal is pressed and then released while the parking brake is engaged, the parking brake may release unexpectedly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
The risk
An unexpected disengagement of the parking brake without continual application of the service brake may allow the vehicle to roll freely, increasing the risk of a vehicle crash.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →The fix — what to do
DTNA will notify owners, and dealers will update the electronic control unit (ECU) software, free of charge. The recall began January 22, 2021. Owners may contact DTNA customer service at 1-800-745-8000. DTNA's number for this recall is FL-870.
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.safercar.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Thomas Built Buses | Saf-T-Liner C2 | 2021 |
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Other campaigns involving Thomas Built Buses vehicles
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All Thomas Built Buses Saf-T-Liner C2 recalls → · All Thomas Built Buses recalls →
Source: NHTSA recall database, campaign 20V787000 (manufacturer number FL-870). Data last verified Jul 30, 2026.