Redundant wheel fastener locking mechanism

What NHTSA is examining

The Office of Defects Investigation (ODI) received a petition on November 21, 2025, requesting a defect investigation to “determine whether the absence of a redundant mechanical wheel-fastener locking mechanism constitutes a safety-related defect in motor vehicles and motor-vehicle equipment” in the heavy-vehicle sector. The petition itself can be reviewed at NHTSA.gov under ODI number 11703245. A defect petition has been opened to evaluate the issue and determine whether to grant or deny the petition.

Vehicles under investigation