Cooling system: hoses/lines/piping/fittingsRecall 26V-086 · Thomas Built Buses vehicles
Daimler Trucks North America, LLC recall 26V-086 covers 2,843 Thomas Built Buses vehicles for a cooling system: hoses/lines/piping/fittings problem, reported to NHTSA on February 13, 2026. The manufacturer's latest report (2026 Q3) shows 31% of affected vehicles repaired.
Source: NHTSA recall 26V086000 and manufacturer quarterly reports. Started by the manufacturer.
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.
The fix
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.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
31%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.
Vehicles in this recall
Built from August 28, 2022 to December 13, 2024. Not every vehicle in these model years is included; check by VIN.