NHTSA Recall 22V438000: Engine control module (ecu/ecm) (engine and engine cooling)
Daimler Trucks North America, LLC reported this safety recall to NHTSA on , covering an estimated 461 vehicles. It affects 2020–2023 Thomas Built Buses Saf-T-Liner C2.
| NHTSA campaign | 22V438000 |
|---|---|
| Manufacturer campaign | FL942 |
| Component | ENGINE AND ENGINE COOLING › ENGINE › ENGINE CONTROL MODULE (ECU/ECM) |
| Report received | June 20, 2022 |
| Owner notification | October 28, 2022 |
| Initiated by | Manufacturer |
Defect
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2023 Thomas Built C2 Saf-T-Liner school buses equipped with 8.8L LPG engines. The engine control module (ECM) may set a fault code that results in an unexpected engine shut down.
Safety risk
Unexpected engine shut down can increase the risk of a crash. Additionally, a disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury to passengers.
Remedy
Dealers will update the ECM software, free of charge. Owner notification letters were mailed October 28, 2022. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL942.
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.
Vehicles covered by recall 22V438000
Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.