NHTSA campaign 26V509000
Mack Trucks, Inc. recall 26V509000
Mack Trucks, Inc. (Mack) is recalling certain 2025 TerraPro trucks. The steering gearbox fasteners may loosen.
Reported 08/06/2026
What can happen
A loose steering gearbox can result in a loss of steering, increasing the risk of a crash.
Repair
Dealers will inspect and tightened or replace the fasteners as necessary, free of charge. Owner notification letters are expected to be mailed October 5, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0497.
Components
- Steering: Critical fasteners
- Steering: Gear box: Mounting bracket
Affected years and models
A listed year and model does not mean every vehicle in that group is recalled. Use the VIN lookup to confirm a specific vehicle.