MACK ANTHEM (AN)

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

Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and Granite vehicles. The power cables may have been improperly routed, which can cause an electrical short.

Risk: An electrical short can cause an engine stall, increasing the risk of a crash. An electrical short can also cause the cables to overheat, increasing the risk of a fire.

ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem (AN) vehicles. The idler gear bracket fasteners may have been improperly tightened, allowing the idler gear to detach from the engine.

Risk: A detached idler gear can damage the engine, resulting in a stall and increasing the risk of a crash or injury.

STEERING

Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and 2025-2026 Pioneer vehicles. The dynamic steering and oversteer guidance feature may malfunction and cause a loss of steering control.

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

STEERING:LINKAGES:TIE ROD ASSEMBLY

Mack Trucks, Inc. (Mack) is recalling certain 2025 Anthem and Pinnacle trucks. The tie rod assemblies may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control.

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

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.

Risk: Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.

SEAT BELTS:CRITICAL FASTENERS

Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 Anthem, Granite, and Pinnacle vehicles equipped with RollTek driver's seat assemblies. The seat pedestal and seat belt attachment may have been improperly tightened.

Risk: An improperly tightened seat pedestal and seat belt attachment may not restrain the occupant as intended, increasing their risk of injury during a crash.

STEERING:LINKAGES:DRAG:LINK:CONNECTION

Mack Trucks, Inc. (Mack) is recalling certain 2025 Mack AN, GR, and TE trucks. The drag link may contain an improperly heat-treated ball stud that can fail, resulting in a sudden loss of steering control.

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

STEERING

Mack Trucks, Inc. (Mack) is recalling certain 2024 Anthem, Pinnacle, and Terrapro vehicles. The steering gear assemblies may have been assembled incorrectly with fewer recirculating balls than are required, which may result in a loss of steering control.

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

VEHICLE SPEED CONTROL

Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

Risk: An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

FUEL/PROPULSION SYSTEM

The fuel filter housing failed on the male end where the filter screws onto the housing (part # 117M/23699581). Part is not available for inspection, manufacturer was given the part for inspection. Failure of the fuel filter housing failed during operation of the truck causing the engine to die while driving down the road causing a complete loss of engine power and fuel spill. Vehicle manufacturer have inspected multiple of the same failed components but has failed to accept responsibility for the components even when the vehicle is still under factory warranty. There were no warning lights or other messages before part failure

FUEL/PROPULSION SYSTEM

The fuel filter housing failed on the male end where the filter screws onto the housing (part # 117M/23699581). Part is not available for inspection, manufacturer was given the part for inspection. Failure of the fuel filter housing failed during operation of the truck causing the engine to die while driving down the road causing a complete loss of engine power and fuel spill. Vehicle manufacturer have inspected multiple of the same failed components but has failed to accept responsibility for the components even when the vehicle is still under factory warranty. There were no warning lights or other messages before part failure.

FUEL/PROPULSION SYSTEM

The fuel filter housing failed on the male end where the filter screws onto the housing (part # 117M/23699581). Part is not available for inspection, manufacturer was given the part for inspection. Failure of the fuel filter housing failed during operation of the truck causing the engine to die while driving down the road causing a complete loss of engine power and fuel spill. Vehicle manufacturer have inspected multiple of the same failed components but has failed to accept responsibility for the components even when the vehicle is still under factory warranty. There were no warning lights or other messages before part failure.