Poor Reception on FM Band Only
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Defective primary or secondary FM antenna
- Defective radio antenna module. Replace radio antenna module. Refer to MODULE REPLACEMENT - RADIO ANTENNA DIVERSITY for service procedure.
- Defective FM impedance matching module. Replace FM impedance matching module. Refer to MODULE REPLACEMENT - RADIO ANTENNA DIVERSITY for service procedure.