The defect
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.
The risk
A loose power cable connection may cause electrical arcing, which can increase the risk of a fire.
The remedy
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.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Thomas Built Buses SAF-T-Liner EFX | 2020, 2021, 2022 |
| Thomas Built Buses SAF-T-Liner HDX | 2020, 2021, 2022 |
Components: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Thomas Built Buses SAF-T-Liner EFX | 2020 | 0 | 8 |
| Thomas Built Buses SAF-T-Liner EFX | 2021 | 0 | 7 |
| Thomas Built Buses SAF-T-Liner EFX | 2022 | 0 | 6 |
| Thomas Built Buses SAF-T-Liner HDX | 2020 | 0 | 18 |
| Thomas Built Buses SAF-T-Liner HDX | 2021 | 0 | 16 |
| Thomas Built Buses SAF-T-Liner HDX | 2022 | 0 | 11 |
Other electrical system recalls in 2021
92 of the 988 recall campaigns reported to NHTSA in 2021 concerned the electrical system; Daimler Trucks North America, LLC filed 166 campaigns in all.
| 21V00N000 29 Dec 2021 | PACCAR Incorporated |
| 21V00K000 28 Dec 2021 | Hyundai Motor America |
| 21V997000 20 Dec 2021 | Jayco, Inc. |
| 21V972000 15 Dec 2021 | Daimler Vans USA, LLC |
| 21V966000 13 Dec 2021 | Autocar, LLC |
| 21V949000 9 Dec 2021 | Chrysler (FCA US, LLC) |
| 21V944000 7 Dec 2021 | Hyundai Motor America |
| 21V941000 6 Dec 2021 | Dennis Eagle Inc. |
NHTSA recalls (public domain) · all recalls of 2021