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Recalls that may apply to the 2026 Mack Pioneer

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

Campaign 26V351000 may apply to this vehicle. NHTSA advises: do not drive until the repair is done.

By component

United States: NHTSA, as of 2026-10-19
26V6310002026-10-01. STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL; STRUCTURE:EXTERIOR TRIM. Mack Trucks, Inc. (Mack) is recalling certain 2026-2027 Anthem AN (4) and 2025-2027 Pioneer PR (4) vehicles. The intake and grille bezels may detach from the vehicle. Built 2024-10-22 to 2026-09-18.
26V6200002026-09-28. SERVICE BRAKES, ELECTRIC:SOFTWARE/PROGRAMMING. Mack Trucks, Inc. (Mack) is recalling certain 2026-2027 Anthem AN (4) and Pioneer PR (4) vehicles equipped with a tanker application package. Inaccurate axle load calculations may cause reduced braking performance while transporting smoothbore tanker trailers. Built 2025-02-24 to 2026-09-11.
26V3510002026-05-28. WHEELS:LUGS/NUTS/BOLTS/STUDS. Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (AN), 2026-2027 Pioneer PR (4), Pinnacle (PI/PN), Granite (GR), and 2027 Anthem AN (4) vehicles. The wheel lug nuts may loosen and allow the wheel to detach. Built 2025-07-18 to 2026-05-01. NHTSA advises: do not drive until the repair is done.
26V2610002026-04-23. SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE. Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2026-2027 Anthem (4) vehicles. The rear brake modulators may have unprotected electrical connectors that can short circuit and lead to a loss of the anti-lock brake system (ABS) and electronic stability control (ESC). Built to 2026-04-21.
26V2070002026-04-01. EXTERIOR LIGHTING:TURN SIGNAL. Mack Trucks, Inc. (Mack) is recalling certain 2025-2027 Pioneer (4) and 2027 Anthem (4) trailers. The trailer turn signals may not function properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment." Built 2024-10-24 to 2026-02-26.
25V8030002025-11-20. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE:SOFTWARE. Mack Trucks, Inc. (Mack) is recalling certain 2026 Anthem (4) and 2025-2026 Pioneer vehicles. The automatic high beams (AHB) may not switch to low beam headlights as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment." Built to 2025-11-03.
25V8010002025-11-20. EQUIPMENT:MECHANICAL. Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. The load lock clamps, located on the back of the cab, may loosen and cause the load lock bars to become unsecured. Built to 2025-10-16.
25V6220002025-09-18. EXTERIOR LIGHTING:LIGHTING CONTROL MODULE. Mack Trucks, Inc. (Mack) is recalling certain 2025-2026 Pioneer vehicles. When towing a trailer, the trailer lights may fail to illuminate due to an improperly manufactured body control module. Built to 2025-09-05.
25V5210002025-08-11. 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. Built 2025-02-24 to 2025-06-23.
Canada: Transport Canada, as of 2026-10-19
20262652026-05-29. Wheels. Issue: On certain trucks, the wheel nut(s) could loosen and cause the wheel(s) to detach. Safety Risk: A wheel separation could cause a loss of control and increase the risk of a crash. Additionally, a wheel that separates could create a road hazard for others. Corrective Actions: To reduce the safety risk, Mack advises you not to drive your truck until the recall repairs have been completed. Mack will notify owners by mail and advise you to contact a dealership to arrange for an inspection of the wheels and hubs. Any damaged parts will be replaced.
20262042026-04-23. Brakes. Issue: On certain trucks, the connector(s) for the rear brake modulator(s) may not have proper wiring protection. As a result, the rear brake modulator(s) could short circuit and cause a loss of antilock braking system (ABS) and electronic stability control (ESC). Safety Risk: A loss of ABS and ESC could increase the risk of a crash. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to inspect and, if necessary, replace the rear brake modulator(s). The dealer will also install a cover on the connector(s).
20261542026-04-01. Lights And Instruments. Issue: On certain trucks, a software problem could cause the trailer turn signal lights not to work when towing. Note: This problem would cause an error message to display on the instrument panel. Safety Risk: Turn signals that don't work may cause a person not to recognize when a driver intends to turn or change lanes and could increase the risk of a crash. Corrective Actions: To reduce the safety risk, Mack advises you to test the trailer turn signals before driving, until the recall repairs are completed. Mack will notify owners by mail and advise you to take your truck to a dealership to update the vehicle software.
20256422025-11-20. Accessories. Issue: On certain trucks, the load lock clamps installed behind the cab could fail. As a result, the load lock bars could become loose and separate from the truck. Safety Risk: A load lock bar that separates could create road hazard for others and increase the risk of a crash or injury. Corrective Actions: Mack will notify owners by mail and advise you to take your truck to a dealership to replace the load lock clamps.
20256402025-11-20. Lights And Instruments. Issue: On certain trucks, the automatic high beams may not switch to low beams automatically. As a result, the trucks may not meet certain requirements of Canadian regulations. Safety Risk: High beams that stay on could cause glare for oncoming drivers and increase the risk of a crash. Corrective Action: To reduce the safety risk, Mack recommends you switch manually between the low beams and high beams until the recall repairs have been completed. Mack will notify owners by mail and advise you to take your vehicle to a dealership to update the vehicle software.

A campaign lists a year, a make and a model, and often only some of the vehicles built. A list with nothing on it is not a clearance either. The lookups below check one VIN.

Check one vehicle officially

Contains information licensed under the Open Government Licence – Canada.