Mack Pioneer PR (Mack) – air tank volume insufficient (2025)
Hazard assessment based on recall description.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the National Highway Traffic Safety Administration (NHTSA)
Product
2025 MACK PIONEER PR (4)
Brand
MACK
Lot Codes / Batch Numbers
Not specified in NHTSA notice. Check official source for details.
Products Sold
Model Year 2025
Mack Trucks, Inc. is recalling certain 2025 MACK PIONEER PR (4) vehicles due to service brakes, air:supply:reservoir/tank issues. Insufficient air volume can reduce braking performance and increase the risk of a crash..
Summary derived from NHTSA notice
Reason for Recall
As stated by NHTSA
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."
Reported concern (NHTSA)
Insufficient air volume can reduce braking performance and increase the risk of a crash.
Recommended Action
Per NHTSA guidance
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.
Verify this information on the official source
For complete details and official instructions, check the National Highway Traffic Safety Administration (NHTSA) directly.
View official NHTSA recall noticePage updated: Jan 10, 2026