2026 Mack Pioneer PR (4) recalls
7 NHTSA recall campaigns naming the 2026 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
- May 28, 2026Crash risk2026 Mack Anthem (an), 2027 Mack Anthem AN (4), 2026–2027 Mack Granite (GR) and 2 other models — Wheels
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.
26V351000 · 644 units · Mack Trucks, Inc.
- 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.