See also:

Coverage
Services are provided up to 5 years/ 160 000 km (100,000 mi), whichever comes first. In the U.S., anyone driving the vehicle is covered. In Canada, a person driving the vehicle without permission ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Sedan and Wagon Uplevel Model
From the inside, for a front door pull the door handle. Pulling the door handle again unlatches the door. For a rear door use the door lock knob on the top of the door. ...