See also:

OnStar®
OnStar® uses several innovative technologies and live advisors to provide a wide range of safety, security, navigation, diagnostics, and calling services. ...

Checking Coolant
The vehicle must be on a level surface when checking the coolant level. Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling ...

Using the Store Command
The store command allows a phone number to be stored without entering the digits individually. 1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followed ...