NHTSA campaign 21V714000 · Manufacturer campaign FL-902
Thomas Built Buses Recall 21V-714: Fan Belt May Come Loose
NHTSA recall 21V714000 (Manufacturer campaign FL-902) was reported by Daimler Trucks North America, LLC on September 15, 2021, with 50 vehicles potentially affected (per NHTSA). NHTSA's record lists the Thomas Built Buses SAF-T-Liner HDX for the 2022 model year. Owners were notified on November 12, 2021, per NHTSA.
Updated daily from NHTSA's recall files
Is my vehicle included?
This page lists, by model year, the vehicles NHTSA's recall record names for campaign 21V714000 in the model years try.vin imports (1995 and later); NHTSA's own record can list more. A model year on the list doesn't mean every vehicle of that year is included, and some may already have been repaired.
To see whether a specific vehicle is included and still needs the repair, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Key facts
- NHTSA campaign
- 21V714000 (also written 21V-714 or 21V714)
- Filed by
- Daimler Trucks North America, LLC
- Manufacturer campaign number
- FL-902
- Report received
- Potentially affected
- 50 vehicles (per NHTSA)
- Component
- Engine and Engine Cooling — Cooling System — Fan
- Owners notified
Repair completion: 78% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)
NHTSA cautions against comparing completion rates across recalls or manufacturers. How try.vin reads them.
Vehicles listed for this recall
NHTSA's recall record lists these vehicles for recall 21V714000. try.vin imports model years 1995 and later, so NHTSA's own list can be longer. Model years with a try.vin recall page link to it. Build dates are NHTSA's range for a model year (per NHTSA); a vehicle built in that range is not necessarily included.
Thomas Built Buses
Thomas Built Buses SAF-T-Liner HDX
NHTSA's recall notice
As NHTSA's recall record states it for campaign 21V714000.
Defect description
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.
Safety consequence
A disabled school bus may require an evacuation procedure in an uncontrolled traffic situation, increasing the risk of injury.
Manufacturer 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.
Sources
Official NHTSA notice for recall 21V714000
Campaign details come from NHTSA's recall files, which try.vin imports once a day. The plain-language subject and the completion rate come from the U.S. Department of Transportation's Recalls Data dataset. How try.vin reads recall data.