See also:

OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there ...

Exterior Lamp Controls
The exterior lamp control is located to the left of the steering column on the instrument panel. It controls the following systems: Headlamps Taillamps Parking Lamps License Plate Lamps ...

Check Gas Cap Light
If your vehicle has this light, it will come on if your gas cap is not securely fastened. ...