Thomas Built Buses recall: Electrical system
What is wrong
Daimler Trucks North America, LLC (DTNA) is recalling certain 2020-2022 Thomas Built EFX and HDX school buses. The nut for the power cable stud on the alternator may not have been tightened properly, which can cause a loose cable connection.
What could happen
A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.
The fix
Dealers will inspect the alternator power cable connection and tighten it if necessary, free of charge. Owner notification letters were mailed on December 17, 2021. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is FL904.
Vehicles covered
- Thomas Built Buses Saf-T-Liner Efx 2020–2022
- Thomas Built Buses Saf-T-Liner Hdx 2020–2022
Facts
- NHTSA recall number
- 21V850000
- Type
- Vehicle
- Filed by
- Daimler Trucks North America, LLC
- Reported to NHTSA
- Nov 2, 2021
- Owners notified
- Dec 17, 2021
- Vehicles or items affected
- 1,434
- Started by
- The manufacturer
- Built
- –
- Part
- Electrical system › Alternator/generator/regulator
- Maker's own recall number
- FL904
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.
Other recalls for the same vehicles
- Thomas Built Buses recall: Engine and engine cooling Feb 13, 2026
- Thomas Built Buses recall: Engine and engine cooling Feb 13, 2026
- Thomas Built Buses recall: Equipment adaptive/mobility Dec 9, 2025
- Thomas Built Buses recall: Steering Sep 11, 2025
- Thomas Built Buses recall: Equipment Jul 24, 2024
- Thomas Built Buses recall: Structure Oct 12, 2022
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.