See also:

Electrical System Overload
The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting th ...

Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...

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. ...