RepairPal Expert Overview
The attaching bolts on one or both rear wheel hubs may not have been tightened to specification.
General Motors will notify owners of affected vehicles beginning March 12, 2002. If you are experiencing a vibration, noise, or looseness from the rear wheel area, or you don't receive notification and you feel you should have, please contact your dealer. It's helpful to have your vehicle identification number (VIN) when you call.
The attaching bolts for one or both rear hub assemblies may not have been tightened to specification during the vehicle assembly process. One or more of the four bolts could come loose, causing an abnormal noise from the rear axle area. In the event that all four bolts loosen, the hub assembly could separate from the rear axle, which could lead to loss of vehicle control. Dealers will properly tighten the affected bolts to correct this concern.