2025 WESTERN STAR 49X

SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner 114SD, Business Class M2, Cascadia, and Western Star 49X vehicles. The air tank capacity may be too small, resulting in reduced braking performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

Risk: Reduced brake performance can extend the distance required to stop, increasing the risk of a crash.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Daimler Trucks North America, LLC (DTNA) is recalling certain 2026 Freightliner eM2, Freightliner 108SD, Freightliner 114SD, Freightliner Cascadia, 2025-2026 Freightliner Business Class M2, Western Star 47X, and Western Star 49X vehicles. A software error in the advanced signal and actuator module for the automatic emergency braking system may cause the brake lights to fail to illuminate.

Risk: Brake lights that fail increase the risk of a crash.

ELECTRICAL SYSTEM:12V/24V/48V BATTERY

Daimler Trucks North America (DTNA) is recalling certain 2020-2026 Western Star 49X and 2021-2026 Western Star 47X vehicles. A stud connecting the battery to the starter at the frame rail may have been incorrectly installed, which can cause a short circuit.

Risk: A short circuit increases the risk of a fire.

WHEELS:HUB

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner Custom Chassis MC, MT45, MT45G, MT55, S2C 106, S2RV 106, XBS, XCM, XCP, XCR, XCS, Freightliner 108SD, 114SD, Business Class M2, Western Star 47X, 49X, 57X, and Thomas Built Buses Saf-T-Liner C2 transit buses, cabs, and chassis. The wheel hub fasteners may loosen and cause the wheel to detach, which can result in a loss of vehicle control.

Risk: A loss of vehicle control increases the risk of a crash.

EXTERIOR LIGHTING:BRAKE LIGHTS

Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2025 Freightliner 108SD, 2022-2025 Freightliner 114SD, Freightliner Business Class M2, 2025 Freightliner eM2, 2020-2025 Western Star 49X, 2021-2025 Western Star 47X, and 2022-2025 Western Star 57X vehicles that may be upfitted with a body lighting interface controller and replacement brake lights. The brake lights may not illuminate when the brakes are automatically applied during an active brake assist (ABA) event.

Risk: Brake lights that fail to illuminate can fail to indicate to other drivers that the vehicle is slowing down, increasing the risk of a crash.

FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner Cascadia, Western Star 49X, Freightliner Custom Chassis XCM and Freightliner Custom Chassis XCP vehicles equipped with certain Cummins fuel pumps. The fuel pump barrels may fracture and cause a fuel leak, which can result in an engine stall.

Risk: An engine stall increases the risk of a crash.

STEERING:LINKAGES:TIE ROD ASSEMBLY

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner Cascadia, 114SD, Western Star 47X, and 49X transit buses equipped with Composolite EXS20 steerable lift axle suspension assemblies. The tie rod assembly ball stud could have been improperly heat treated and can fail.

Risk: The ball stud can separate from the vehicle becoming a road hazard, increasing the risk of a crash.

ELECTRONIC STABILITY CONTROL (ESC)

Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2025 Western Star 49X and 2025 Freightliner Cascadia vehicles. The Electronic Stability Control (ESC) software has incorrect axle spacing parameters. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 136, "Electronic Stability Control Systems on Heavy Vehicles."

Risk: Incorrect parameters can decrease vehicle stability or braking performance, increasing the risk of crash.