Visual/Physical Inspection

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the system for the following:
- Loose or missing fasteners
- Obvious damage or conditions which may cause the symptom.
Check the system for proper operation. Refer to Locking Differential Diagnosis .