Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Inspect the antenna for proper mounting or physical damage.
- If damage is found, repair or replace as necessary
- Radio ON, tune to several known FM, AM, and XM (if equipped) stations, and play a known good CD.
- If audio output is poor from all sources, refer to Speaker Malfunction .