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United States 26V087000

Daimler Trucks North America, LLC

ENGINE AND ENGINE COOLING — Heater Hose May Leak Hot Heating Coolant Inside Passenger Compartment · February 14, 2026

The problem

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.

Risk

Contact with hot heating coolant may burn occupants, increasing the risk of injury.

What owners should 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.

Units 52

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