MACK PIONEER PR (4) recalls
NHTSA lists 14 recall campaigns for the MACK PIONEER PR (4); the most recent was received 2026-09-28 (Service Brakes, Electric › Software/Programming). 2 came with a Do Not Drive or Park Outside warning.
Recalls by model year
All MACK PIONEER PR (4) campaigns
| Campaign | Received | Component | Problem |
|---|---|---|---|
| 26V620000 | 2026-09-28 | 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 … |
| 26V515000 | 2026-08-06 | Exterior Lighting | Mack Trucks, Inc. (Mack) is recalling certain 2027 Anthem AN (4) and Pioneer PR (4) vehicles. The center roof marker lights may fail to illuminate. As such, these vehicles fail to comply with the requirements of Federal … |
| 26V351000 | 2026-05-28 | Wheels › Lugs/Nuts/Bolts/Studs Do Not Drive | 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. |
| 26V261000 | 2026-04-23 | 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… |
| 26V207000 | 2026-04-01 | 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 Federa… |
| 25V801000 | 2025-11-20 | 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. |
| 25V803000 | 2025-11-20 | 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 … |
| 25V622000 | 2025-09-18 | 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. |
| 25V521000 | 2025-08-11 | 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. |
| 25V026000 | 2025-01-21 | Service Brakes, Air › Supply › Reservoir/Tank | 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 Fede… |
| 24V792000 | 2024-10-23 | 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 lin… |
| 24V567000 | 2024-07-30 | Seats › 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… |
| 24V504000 | 2024-07-02 | Steering › Linkages › Tie Rod Assembly | 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 h… |
| 24V424000 | 2024-06-09 | Power Train › Axle Assembly Do Not Drive | 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. |
A recall covers a make, model and year range; whether one specific vehicle is affected or already repaired is confirmed by VIN at nhtsa.gov/recalls or by a dealer. Recall repairs are free. Source: NHTSA recall flat file (public domain), campaigns received since January 2010.
All MACK models · Recalls in the last 12 months · How to check a VIN for open recalls