Vehicle recall 22V510000 · July 19, 2022
Thomas Built Buses SAF-T-Liner HDX and SAF-T-Liner EFX
The passenger seat frames may crack and rotate from fatigue.
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 2014-23 Thomas Built Buses HDX and 2014-22 EFX school buses equipped with 39-inch S3C seat frames and 3-point flex seatbelts. The passenger seat frames may crack and rotate from fatigue.
- Consequence
- Cracked passenger seat frames may not adequately secure passengers in the event of a crash, increasing the risk of injury.
- Remedy
- Dealers will secure the seat frames with brackets, free of charge. Owner notification letters were mail December 4, 2023. Owners may contact DTNA's customer service at 1-800-547-0712. DTNA's number for this recall is FL946.
- 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
- 22V510000
- Reported to NHTSA
- July 19, 2022
- Filed by
- Daimler Trucks North America, LLC
- Manufacturer campaign
- FL946
- Owner notification
- December 4, 2023
- Vehicles potentially affected
- 1,806
- Initiated by
- the manufacturer
- Components
- Seats › Mid/rear assembly; Seats
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.