Engine And Engine Cooling:cooling System:hoses/lines/piping/fittings
NHTSA campaign 26V086000 · announced February 13, 2026 · filed by Daimler Trucks North America, Llc · 2,843 units affected
The problem
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.
The risk
Contact with hot heating coolant may burn occupants, increasing the risk of injury.
What to do
Dealers will inspect and replace the heater hose clamps, as necessary, free of charge. Owner notification letters were mailed April 10, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1030.
Vehicles covered by this recall
- 2023 Thomas Built Buses Saf-t-liner Efx
- 2024 Thomas Built Buses Saf-t-liner Efx
- 2025 Thomas Built Buses Saf-t-liner Efx
- 2026 Thomas Built Buses Saf-t-liner Efx
- 2023 Thomas Built Buses Saf-t-liner Hdx
- 2024 Thomas Built Buses Saf-t-liner Hdx
- 2025 Thomas Built Buses Saf-t-liner Hdx
- 2026 Thomas Built Buses Saf-t-liner Hdx
Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal or repair advice.