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Thomas Built Buses Saf-T-Liner C2 Recall 26V523: Diesel Fuel Tank Mounts May Leak in a Crash, Raising Fire Risk

NHTSA campaign 26V523, reported August 10, 2026, 160 vehicles potentially affected.

What this recall means for you

Certain 2024 through 2027 Thomas Built Buses Saf-T-Liner C2 transit buses may have a fuel tank cage material and fuel system mounting that are incompatible. Because of this, the buses may not meet Federal Motor Vehicle Safety Standard 301, which covers fuel system integrity.

In a crash, this incompatibility may cause the fuel system to leak fuel, which increases the risk of a fire.

Dealers will reconfigure components to accommodate the existing fuel tank cage, free of charge. Owner notification letters were mailed September 22, 2026. You can contact Daimler Trucks North America customer service at 1-800-547-0712 and check your vehicle identification number for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 26V523Daimler Trucks North America, LLC
Component
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
Problem
Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2027 Thomas Built Buses Saf-T-Liner C2 transit buses. The fuel tank cage material and fuel system mounting may be incompatible. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 301, "Fuel System Integrity."
Risk
During a crash, an incompatible fuel tank cage and fuel system may result in a fuel leak, increasing the risk of a fire.
Remedy
Dealers will reconfigure components to accommodate the existing fuel tank cage, free of charge. Owner notification letters were mailed September 22, 2026. Owners may contact DTNA customer service at 1-800-547-0712. DTNA's number for this recall is F1037.

Affected vehicles

Thomas Built Buses Saf-T-Liner C22024202520262027