2025 Mack Pioneer PR (4) recalls
11 NHTSA recall campaigns naming the 2025 Mack Pioneer PR (4). Last verified Jul 30, 2026. Recalls may apply only to certain VIN ranges — always confirm with a VIN check.
Units are totals reported across campaigns mentioning this model — NHTSA does not always break unit counts down by model.
Affected components
Nearby model years
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Campaigns
- Apr 23, 2026Crash risk2026–2027 Mack Anthem AN (4), 2025–2027 Mack Pioneer PR (4) — Service Brakes, Air
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).
26V261000 · 3K units · Mack Trucks, Inc.
- Apr 1, 2026Crash risk2027 Mack Anthem AN (4), 2025–2027 Mack Pioneer PR (4) — Exterior Lighting
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."
26V207000 · 86 units · Mack Trucks, Inc.
- Nov 20, 2025Crash risk2026 Mack Anthem AN (4), 2025–2026 Mack Pioneer PR (4) — Exterior Lighting
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."
25V803000 · 247 units · Mack Trucks, Inc.
- Nov 20, 2025Crash risk2025–2026 Mack Pioneer PR (4) — Equipment
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.
25V801000 · 46 units · Mack Trucks, Inc.
- Sep 18, 2025Crash risk2025–2026 Mack Pioneer PR (4) — Exterior Lighting
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.
25V622000 · 156 units · Mack Trucks, Inc.
- Aug 11, 2025Crash risk2025 Mack Anthem (an), 2025–2026 Mack Pioneer PR (4) — 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.
25V521000 · 32 units · Mack Trucks, Inc.
- Jan 21, 2025Crash risk2024 Mack Pinnacle (pi/pn), 2025 Mack Pioneer PR (4) — Service Brakes, Air
Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 Pinnacle (PI/PN) trucks. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
25V026000 · 21 units · Mack Trucks, Inc.
- Oct 23, 2024Crash risk2020–2025 Mack Anthem (an), 2020–2025 Mack Granite (GR), 2020–2025 Mack Pinnacle (pi/pn) and 2 other models — Service Brakes, Hydraulic
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.
24V792000 · 59K units · Mack Trucks, Inc.
- Jul 30, 2024Crash risk2024–2025 Mack Anthem (an), 2024–2025 Mack Granite (GR), 2024 Mack Pinnacle (pi/pn) and 1 other model — Seats
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.
24V567000 · 242 units · Mack Trucks, Inc.
- Jul 2, 2024Crash risk2025 Mack Granite (GR), 2025 Mack LR, 2025 Mack Pioneer PR (4) — Steering
Mack Trucks, Inc. (Mack) is recalling certain 2025 LR, Granite, and Pinnacle vehicles equipped with Composilite EXS20 steerable lift axle suspension assemblies. The tie rod assembly ball stud could have been improperly heat treated and can fail.
24V504000 · 59 units · Mack Trucks, Inc.
- Jun 9, 2024Crash risk2025 Mack Anthem (an), 2025 Mack Pioneer PR (4) — Power Train
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.
24V424000 · 7 units · Mack Trucks, Inc.