The defect
Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2024-2027 Saf-T-Liner C2 school buses. The vehicle's software may misinterpret contact if the door switch is bumped, deactivating the amber and red warning lights and the stop sign arm.
The risk
Warning lights and a stop sign arm that fail to activate will not warn other drivers the school bus is slowing down, increasing the risk of a crash or injury.
The remedy
Dealers will update the amber and red warning light software, free of charge. Owner notification letters were mailed June 2, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1032.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Thomas Built Buses SAF-T-Liner C2 | 2024, 2025, 2026, 2027 |
Components: EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS
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 C2 | 2024 | 0 | 14 |
| Thomas Built Buses SAF-T-Liner C2 | 2025 | 0 | 13 |
| Thomas Built Buses SAF-T-Liner C2 | 2026 | 0 | 7 |
| Thomas Built Buses SAF-T-Liner C2 | 2027 | 0 | 7 |
Other exterior lighting recalls in 2026
32 of the 666 recall campaigns reported to NHTSA in 2026 concerned the exterior lighting; Daimler Trucks North America, LLC filed 166 campaigns in all.
| 26V632000 1 Oct 2026 | Daimler Trucks North America, LLC |
| 26V606000 22 Sept 2026 | Ford Motor Company |
| 26V513000 6 Aug 2026 | Volvo Trucks North America |
| 26V515000 6 Aug 2026 | Mack Trucks, Inc. |
| 26V508000 5 Aug 2026 | Rivian Automotive, LLC |
| 26V507000 4 Aug 2026 | Tesla, Inc. |
| 26V484000 27 Jul 2026 | Jayco, Inc. |
| 26V486000 27 Jul 2026 | Foretravel, Inc. |
NHTSA recalls (public domain) · all recalls of 2026