See also:

Customer Assistance Offices (U.S. and Canada)
GMC encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail GMC, the letter should be addressed to: United States GMC Customer Assistance ...

Pairing
A Bluetooth enabled cell phone must be paired to the Bluetooth system and then connected to the vehicle before it can be used. See the cell phone manufacturer's user guide for Bluetooth functions befo ...

Rear Vision Camera Error Messages
SERVICE REAR VISION CAMERA SYSTEM: This message can display on the radio screen when the system is not receiving information it requires from other vehicle systems. If any other problem occurs or i ...