See also:

Online Owner Center
Manage your vehicle (U.S.) at gmc.com. Click on “Owners,” then “Manage My GMC/Owners Login.” Information and services customized for your specific vehicle — all in one convenient place. � ...

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage map ...

Clock
To adjust the time and date: 1. Turn the ignition key to ACC/ACCESSORY or ON/RUN, then press to turn the radio on. 2. Press to display HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year). ...