See also:

Guidelines
The RVC system has a guideline overlay that can help the driver align the vehicle when backing into a parking spot. If the vehicle has dual rear wheels, this feature will not be available. To turn t ...

Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)
To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicat ...

Tips and Troubleshooting Chart
Problem Recommended Action There is no power. The ignition might not be turned to ON/RUN or ACC/ACCESSORY. The picture does not fill the screen. There are black bord ...