2024 Mack Pinnacle (pi/pn), 2025 Mack Pioneer PR (4) Recall: Air tanks have an insufficient volume of air for the brake system
NHTSA campaign 25V026000 · Service Brakes, Air · filed Jan 21, 2025 · verified Jul 30, 2026
The defect
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."
The risk
Insufficient air volume can reduce braking performance and increase the risk of a crash.
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 →The fix — what to do
Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed February 10, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0473.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-888-275-9171) or go to nhtsa.gov.
Affected vehicles
| Make | Model | Model years |
|---|---|---|
| Mack | Pinnacle (pi/pn) | 2024 |
| Mack | Pioneer PR (4) | 2025 |
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Other campaigns involving Mack vehicles
Source: NHTSA recall database, campaign 25V026000 (manufacturer number SC0473). Data last verified Jul 30, 2026.