The 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.
The 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.
The 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Thomas Built Buses SAF-T-Liner C2 | 2020, 2021, 2022, 2023 |
Components: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Thomas Built Buses SAF-T-Liner C2 | 2020 | 1 | 16 |
| Thomas Built Buses SAF-T-Liner C2 | 2021 | 0 | 15 |
| Thomas Built Buses SAF-T-Liner C2 | 2022 | 1 | 12 |
| Thomas Built Buses SAF-T-Liner C2 | 2023 | 0 | 12 |
Other engine and engine cooling recalls in 2022
44 of the 933 recall campaigns reported to NHTSA in 2022 concerned the engine and engine cooling; Daimler Trucks North America, LLC filed 166 campaigns in all.
| 22V912000 9 Dec 2022 | Kawasaki Motors Corp., U.S.A. |
| 22V852000 18 Nov 2022 | E-One Incorporated |
| 22V833000 10 Nov 2022 | Shyft Group |
| 22V793000 20 Oct 2022 | Volvo Car USA, LLC |
| 22V786000 19 Oct 2022 | Kalmar Solutions, LLC |
| 22V753000 7 Oct 2022 | Volkswagen Group of America, Inc. |
| 22V707000 21 Sept 2022 | Volkswagen Group of America, Inc. |
| 22V704000 20 Sept 2022 | Ducati North America |
NHTSA recalls (public domain) · all recalls of 2022