The Recall Desk
Our severity:SevereNHTSA·25V026000·Announced 2025-01-21

Mack Trucks Recalls 2024-2025 Pinnacle and Pioneer Models for Brake Defect

Mack Trucks is recalling 2024-2025 Pinnacle and Pioneer trucks because air tanks have insufficient volume, potentially reducing braking performance and increasing crash risk.

What this means for you

Our assessment, not the agency’s: severity 4/5 (Severe).

The hazard poses a serious risk of illness, injury, or structural failure. Stop using the product immediately and contact the manufacturer for a refund or repair.

Our severity reasoning: The recall involves a structural vehicle defect in the braking system that increases the risk of a crash, meeting the criteria for a Severe rating.

Plain-English summary

Mack Trucks, Inc. is recalling certain 2024-2025 Pinnacle (PI/PN) and 2025 Pioneer PR (4) trucks. The recall addresses a defect where the air tanks have an insufficient volume of air for the brake system. As a result, these vehicles fail to comply with Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."

The insufficient air volume can reduce braking performance and increase the risk of a crash. No specific injuries or fatalities are reported in the source text.

Dealers will install the correct volume air tanks free of charge. Owner notification letters were mailed on February 10, 2025. Owners may contact Mack's customer service at 1-800-866-1177 or the NHTSA Vehicle Safety Hotline at 1-888-327-4236. Mack's number for this recall is SC0473.

The recalled product

Product
MACK PIONEER PR (4), PINNACLE (PI/PN)
Brand
MACK
Manufacturer
Mack Trucks, Inc.
Category
Vehicle — Trucks
Hazard
Affected units
21

Is your product affected?

Check your packaging against the codes below. If any of them match, the product is part of this recall.

Model numbers (2)

  • PIONEER PR (4)
  • PINNACLE (PI/PN)

Distribution

Distributed nationwide across the United States.

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