Action Taken When the DTC Sets
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- The OnStar® status LED turns red.
- The vehicle communication interface control module will not receive a signal from the cellular phone microphone.
- Calls can be placed but the caller cannot be heard.