2025 Mack Pioneer Pr (4) | 2025 Mack Anthem (An) | 2026 Mack Pioneer Pr (4) — Steering
Published August 12, 2025 · Recall initiated: August 11, 2025
Summary
NHTSA records recall 25V521000, published August 12, 2025 and initiated August 11, 2025. Recalling firm: Mack Trucks, Inc.; 2025 Mack Pioneer Pr (4) | 2025 Mack Anthem (An) | 2026 Mack Pioneer Pr (4) — Steering.
What's the hazard
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.
What to do
The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.
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Recall details
- Brand
- MACK
- Model
- PIONEER PR (4)
- Manufacturer
- Mack Trucks, Inc.
- Lot
- 2025 MACK PIONEER PR (4) | 2025 MACK ANTHEM (AN) | 2026 MACK PIONEER PR (4)
- Risk classification
- V
- Country
- US
Related recalls
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- NHTSA2026 Mack Granite (Gr) | 2027 Mack Pinnacle (Pi/Pn) | 2026 Mack Pioneer Pr (4) | 2027 Mack Pioneer Pr (4) |May 29, 2026
- NHTSA2027 Mack Pioneer Pr (4) | 2027 Mack Anthem An (4) | 2026 Mack Anthem An (4) | 2026 Mack Pioneer Pr (4) | 2025April 23, 2026
- NHTSADunlop Tt93gp Pro Ms — Tires: tread/beltAugust 13, 2025
- NHTSA2025 Volvo Vnl (4) | 2026 Volvo Vnl (4) — SteeringAugust 12, 2025
Questions about this recall
Was 2025 Mack Pioneer Pr (4) | 2025 Mack Anthem (An) | 2026 Mack Pioneer Pr (4) — Steering recalled?
Yes. NHTSA published recall 25V521000 on August 12, 2025. Reported hazard: 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.
What should I do if I have this product?
The oversteer guidance feature will be disabled through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed August 21, 2025. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0483.
How do I know if my unit is part of the recall?
Compare your product details with the notice. Brand: MACK. Model: PIONEER PR (4).