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 diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
Brake Pedal Travel
See your dealer/retailer if the brake pedal does not
return to normal height, or if there is a rapid increase in
pedal travel. This could be a sign that brake service
might be required. ...
Total safety and security approach
Terraza is engineered to be among the safest vehicles in the mid-van segment,
providing outstanding performance in real-world crashes. Notable features
include structural enhancements to its frame ...
Parking/Turn Signal Lamp
1. Open the hood. See Hood .
2. Remove the parking/turn signal lamp bulb socket from the headlamp assembly
by turning counterclockwise.
3. Remove the bulb from the bulb socket by pulling it straig ...