2023 Thomas Built Buses Saf-T-Liner HDX recalls
8 NHTSA recall campaigns naming the 2023 Thomas Built Buses Saf-T-Liner HDX. Last verified Jul 30, 2026. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Units are totals reported across campaigns mentioning this model — NHTSA does not always break unit counts down by model.
Affected components
Nearby model years
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Campaigns
- Feb 13, 2026Fire risk2023–2026 Thomas Built Buses Saf-T-Liner Efx, 2023–2026 Thomas Built Buses Saf-T-Liner HDX — Engine and Engine Cooling
Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2023-2026 Saf-T-Liner EFX and Saf-T-Liner HDX school buses. The heater hose clamps may not have been tightened properly, causing the hose to disconnect and leak heating coolant inside the passenger compartment.
26V086000 · 3K units · Daimler Trucks North America, LLC
- Feb 13, 2026Fire risk2023–2025 Thomas Built Buses Saf-T-Liner Efx, 2023–2026 Thomas Built Buses Saf-T-Liner HDX — Engine and Engine Cooling
Daimler Trucks North America, LLC (DTNA) is recalling certain Thomas Built Buses 2023-2025 Saf-T-Liner EFX and 2023-2026 Saf-T-Liner HDX vehicles. The heater hose clamps may not have been tightened properly, causing the hose to disconnect and leak heating coolant inside the passenger compartment.
26V087000 · 52 units · Daimler Trucks North America, LLC
- Oct 12, 2022Crash risk2011–2023 Thomas Built Buses Saf-T-Liner Efx, 2011–2023 Thomas Built Buses Saf-T-Liner HDX — Structure
Daimler Trucks North America, LLC (DTNA) is recalling certain 2011-2023 Thomas Built EFX and HDX school buses. The exterior roof panel was manufactured with insufficient joint strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength."
22V762000 · 18K units · Daimler Trucks North America, LLC
- Sep 14, 2022Crash risk2020–2023 Thomas Built Buses Saf-T-Liner HDX — Structure
Daimler Trucks North America LLC (DTNA) is recalling certain 2020-2023 Thomas Built Saf-T-Liner HDX school buses. The rear exterior side-body panel was manufactured with insufficient joint strength. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 221, "School Bus Body Joint Strength."
22V688000 · 1K units · Daimler Trucks North America, LLC
- Jul 29, 2022Crash risk2023 Thomas Built Buses Saf-T-Liner C2, 2023 Thomas Built Buses Saf-T-Liner HDX — Engine and Engine Cooling
Daimler Trucks North America, LLC (DTNA) is recalling certain 2023 Thomas Built Saf-T-Liner HDX and Saf-T-Liner C2 school buses. The engine control module (ECM) may experience an internal short-circuit, which can result in an unexpected engine shut down.
22V553000 · 71 units · Daimler Trucks North America, LLC
- Jul 19, 2022Crash risk2014–2022 Thomas Built Buses Saf-T-Liner Efx, 2014–2023 Thomas Built Buses Saf-T-Liner HDX — Seats
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.
22V510000 · 2K units · Daimler Trucks North America, LLC
- Apr 22, 2022Fire risk2019–2023 Thomas Built Buses Saf-T-Liner HDX — Electrical System
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2023 Thomas Built Bus HDX school buses. The positive battery cable may be routed improperly, allowing it to chafe against the transmission oil cooler hoses, which can cause an electrical short circuit.
22V271000 · 3K units · Daimler Trucks North America, LLC
- Apr 22, 2022Fire risk2019–2023 Thomas Built Buses Saf-T-Liner HDX — Electrical System
Daimler Trucks North America, LLC (DTNA) is recalling certain 2019-2023 Thomas Built Bus HDX commercial buses. The positive battery cable may be routed improperly, allowing it to chafe against the transmission oil cooler hoses, which can cause an electrical short circuit.
22V272000 · 138 units · Daimler Trucks North America, LLC