See also:

Onstar.com
The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service. Get subscription plan pricing and sign up for OnStar Vehicle ...

Setting the 12/24 Hour Format
1. Press the CONFIG button and select Time Settings, or press . 2. Highlight 12/24 Hour Format. 3. Press SELECT to select the 12 hour or 24 hour display format. ...

Driving On Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get hot and ...