Mack Anthem (AN), Pioneer PR (4) (2025-2026): Steering
Recall 25V521000 · Aug 11, 2025 · Mack Trucks, Inc.
32
vehicles affected
32
vehicles affected
Facts
- Recall number
- 25V521000
- Date
- Aug 11, 2025
- Maker
- Mack Trucks, Inc.
- Units affected
- 32
- Kind
- Vehicles
- Component
- Steering
- Model years
- 2025-2026
- Started by
- The maker
- Hazard
- Crash risk
What is wrong
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 can happen
A loss of steering control increases the risk of a crash.
The fix
Recall repairs are free of charge.
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.
Vehicles covered
2 models, 3 model years in all
| Make | Model | Model years |
|---|---|---|
| Mack | Anthem (AN) | 2025 |
| Mack | Pioneer PR (4) | 2025-2026 |
Related pages
Questions and answers
Which vehicles are in recall 25V521000?
2 models: Mack Anthem (AN) (2025), Mack Pioneer PR (4) (2025-2026), about 32 vehicles in all.
What is the fix for recall 25V521000?
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.
What can happen?
A loss of steering control increases the risk of a crash.
A recall means the maker found a safety problem and offers a free fix; it does not mean every unit has the problem. Units affected are as reported by the company. Popular models sell more and so have more recalls and complaints. Official public data; texts are shortened. A dealer can tell whether a single vehicle still needs the repair.