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.
- Verify that the Check XM Receiver message is not displayed on the radio.
- If a Check XM Receiver message is displayed, replace the DRR.
- Tune to a strong AM or FM station and verify each speaker is producing clear and even sound, with no distortion.
- If any speaker is not producing sound or the sound produced is distorted, refer to Speaker Malfunction .
- With the vehicle outside in an area with an unobstructed view of the southern sky, tune to XM. Verify XM reception is clear and the No XM Signal message is not displayed on the radio.
- If the No XM Signal message is displayed or XM reception is poor, refer to Digital Radio Antenna Circuit Malfunction below.
- Radio tuned to XM, use the radio balance function to transfer audio between the left and right side of the vehicle. Verify clear and even sound is heard from each side of the vehicle.
- If either side of the vehicle is not producing sound or the sound produced is distorted, refer to Digital Radio Output Circuit Malfunction below.
- Verify if the XM band is receiving all channels (preview mode).
- If no channels are displayed, advise the customer to refer to the owners manual for XM contact information in regards to an active account status and/or a refresh request.