FREIGHTLINER BUSINESS CLASS M2

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.

STEERING

Fontaine Modification Company (Fontaine Modification) is recalling certain 2022-2024 Freightliner Business Class M2 vehicles. Welds may crack and fail, allowing the Intermediate steering shaft assembly to detach from the steering column.

Risk: A steering shaft that detaches can result in a loss of steering, 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.

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.

PARKING BRAKE

Daimler Trucks North America, LLC (DTNA) is recalling certain 2024-2025 Freightliner Business Class M2 vehicles. The rubber ball seal in the Intellipark Park Valve Modules (PVM) may fracture and cause a leak, which can result in park brake failure or unexpected park brake engagement while driving.

Risk: Park brake failure or unexpected park brake engagement while driving 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.

STEERING:LINKAGES:TIE ROD ASSEMBLY

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner 108SD, 114SD, Business Class M2, Cascadia and Western Star 47X vehicles. The tie rod in the front axle may contain ball studs that have been incorrectly heat-treated, which can cause them to break, and result in tie rod failure.

Risk: Tie rod failure can cause a loss of vehicle steering control and increase the risk of a crash.

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

Daimler Trucks North America, LLC (DTNA) is recalling certain 2015-2020 Freightliner Business Class M2 emergency vehicles equipped with certain Cummins diesel engines. The engine protection and inducement software may cause the engine to shut down unexpectedly.

Risk: An unexpected engine shutdown can delay emergency responders and increase the risk of injury.

STEERING:LINKAGES:TIE ROD ASSEMBLY

Daimler Trucks North America, LLC (DTNA) is recalling certain 2025 Freightliner Cascadia, 108SD, 114SD, Business Class M2, Western Star 47X, 49X, Freightliner Custom Chassis S2RV 106, and S2C 106 transit buses, cabs, and chassis. The front axle tie rod ball joint studs may crack and break, which can result in tie rod separation.

Risk: Tie rod separation can cause a sudden loss of steering control and increase the risk of a crash.