See also:

Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not o ...

Cruise Control
: Press to turn the cruise control system on and off. An indicator light will turn on or off in the instrument cluster. : Press to disengage cruise control without erasing the set speed from ...

Using the Call Command
1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followed by a tone. ► For vehicles with a navigation system, the system responds with a tone. Aft ...