Daimler Trucks North America, LLC: Engine and Engine Cooling › Cooling System › Hoses/Lines/Piping/Fittings
Daimler Trucks North America, LLC reported this defect to federal regulators on Feb 13, 2026 and put the number of vehicles at risk at 52. The repair is free for as long as the recall stands.
The defect
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.
The risk
Contact with hot heating coolant may burn occupants, increasing the risk of injury.
The remedy
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.
7 model years covered
Newest firstWhat this page is, and what to do next
A recall is not an opinion. It is a Part 573 report a manufacturer is required by federal law to file once it decides a defect poses an unreasonable risk to safety, and it commits them to repairing the vehicle at no cost to the owner. The three passages above are the manufacturer’s own wording as published by NHTSA.
This page describes the campaign. It cannot tell you whether one particular car has already been through the shop — that is tracked by VIN, and only the manufacturer knows it. Check yours at nhtsa.gov/recalls or with a franchised dealer, quoting campaign number 26V087000.
Full record for the 2026 Thomas Built Buses Saf-T-Liner HDX → · Recalls carrying a do-not-drive advisory → · Where this data comes from →