SteeringRecall 25V-521 · Mack vehicles
Mack Trucks, Inc. recall 25V-521 covers 32 Mack vehicles for a steering problem, reported to NHTSA on August 11, 2025. The manufacturer's latest report (2026 Q3) shows 100% of affected vehicles repaired.
Source: NHTSA recall 25V521000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
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.
The risk
A loss of steering control increases the risk of a crash.
The fix
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.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
How fast cars are being fixed
100%repaired
Share of affected vehicles repaired in each quarterly report the manufacturer filed with NHTSA.
Vehicles in this recall
Built from October 22, 2024 to June 23, 2025. Not every vehicle in these model years is included; check by VIN.