RECALLS — MAKE · MODEL · YEAR
2021 Thomas Built SAF-T-Liner C2 School BUS recalls
4 safety recall campaigns have been filed for the 2021 Thomas Built SAF-T-Liner C2 School BUS with Transport Canada and the U.S. NHTSA. Here is what both agencies say.
- Canadian recalls
- 04
- U.S. recalls
- 00
- Total campaigns
- 04
Transport Canada recalls
04- Structure#2023540
1,892 units affected
Issue: On certain school buses, the fasteners for the rear emergency exit door latch could loosen and detach. If this happens, and the door is pushed, it could open suddenly. Safety Risk: An emergency exit door that opens suddenly could increase the risk of injuries. Corrective Actions: Daimler Truck North America (DTNA) will notify owners by mail. The corrective actions for this recall are under development. DTNA recommends that you should contact them immediately if you notice any missing bolts during your daily pre-trip inspection.
- Structure#2023276
2,013 units affected
Issue: On certain school buses, the rear interior side body panels may not have been attached correctly. As a result, the buses may not meet the joint strength requirements of Canadian regulations. Note: This recall affects both Saf-T-Liner C2 school buses and Saf-T-Liner C2 Jouley (electric) school bus models. Safety Risk: A body joint that is not strong enough could increase the risk of injury in a crash. Corrective Actions: Daimler Truck North America (DTNA) will notify owners by mail and instruct you to take your bus to a DTNA authorized service facility to add more fasteners to the rear interior side body panel joints.
- Electrical#2020078
292 units affected
Issue: On certain school buses, a software problem could cause the exterior warning lights to stop flashing. If this happens, the red warning lights can turn off suddenly. The stop sign and crossing arm will also retract. Note for drivers: If this happens, the system indicator light will turn off. A driver can press the momentary activation switch to turn the warning lights back on and deploy the stop sign. Safety Risk: If the warning lights stop flashing and the stop sign retracts, other drivers may assume that it is safe to proceed when it is not. This could increase the risk of injury. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your bus to a DTNA authorized service facility to update the software in the switch hub module.
- Engine#2019611
106 units affected
Issue: On certain school buses built with a Detroit Diesel DD5 engine, the bolts that attach the engine cooling fan could loosen. If this happens, the fan could detach and/or cause damage to nearby parts. This could disable the school bus. Safety Risk: A bus that is disabled could result in an evacuation in an uncontrolled environment, which may create a risk of injury. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct them to take their bus to a DTNA authorized service facility to inspect and repair the fan hub fasteners, as required.
Canadian data updated August 24, 2026
U.S. NHTSA recalls
00No recalls found for this make, model, and year.
Does this recall apply to my vehicle?
Matched by make, model, and model year. Many recalls affect only specific VIN ranges — confirm with your dealer using your full VIN.
What to do
Recall repairs are free at a franchised dealer in both countries. To confirm a recall applies to your specific vehicle, or to book the work, contact your manufacturer or dealer with your full VIN, or use the official channel:
- NHTSA recall lookup (search by VIN) — U.S. National Highway Traffic Safety Administration
- Defects and recalls database — Transport Canada
Check a 2021 Thomas Built SAF-T-Liner C2 School BUS VIN
A VIN decode confirms your vehicle's exact model year, trim and assembly plant, then runs this same recall check against it.