Diagnostic Aids
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.
- Observe the driver information center (DIC) messaging that would indicate the electrical system requires service.
- Inspect for the following conditions:
- Loose or damaged terminals at the generator
- Loose or worn generator drive belt