Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, press the rear window defogger switch. Verify the rear window defogger indicator illuminates.
- If the rear window defogger indicator does not illuminate, refer to Rear Window Defogger Malfunction .
- Verify both the left and right outside mirror glass become warm.