Vehicle recall 21V714000 · September 15, 2021
2022 Thomas Built Buses SAF-T-Liner HDX
The fan drive pulley assembly bolts may be incorrect or improperly installed.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Daimler Trucks North America, LLC (DTNA) is recalling certain 2022 Thomas Built Buses Saf-T-Liner HDX school buses. The fan drive pulley assembly bolts may be incorrect or improperly installed. Incorrect or improperly installed bolts may lead to a loose fan belt, resulting in a disabled bus.
- Consequence
- A disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury.
- Remedy
- DTNA will inspect and repair the fan drive pulley assembly mounting bolts as necessary, free of charge. Owner notification letters were mailed on November 12, 2021. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL-902.
- 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.
Recall details
- NHTSA campaign
- 21V714000
- Reported to NHTSA
- September 15, 2021
- Filed by
- Daimler Trucks North America, LLC
- Manufacturer campaign
- FL-902
- Owner notification
- November 12, 2021
- Vehicles potentially affected
- 50
- Initiated by
- the manufacturer
- Components
- Engine and engine cooling › Cooling system › Fan
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Thomas Built Buses been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. A Thomas Built Buses dealer can also check your VIN. Recall repairs are free.