Reactivation for Subsequent Owners
Push 
and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.
The Advisor will update vehicle records and will explain the OnStar service offers and options available.
See also:
Battery
This display shows the current battery voltage. If the voltage is in the normal range, the value will display. For example, the display may read BATTERY 13 VOLTS.
Your vehicle's charging system regul ...
Customer Satisfaction Procedure (U.S. and
Canada)
Your satisfaction and goodwill are important to your dealer and to GMC. Normally, any concerns with the sales transaction or the operation of the vehicle will be resolved by your dealer's sales or ser ...
Deleting a Paired Phone
If the phone name you want to delete is unknown, see “Listing All Paired and Connected Phones.” 1. Press and hold for two seconds.
2. Say “Bluetooth.” 3. Say “Delete.” The system asks wh ...