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.
See also:
Door Ajar Messages
DRIVER DOOR OPEN
This message displays and a chime sounds if the driver door is not fully closed and the vehicle is shifted out of P (Park). Stop and turn off the vehicle, check the door for obstruct ...
Cleaning Exterior Lamps/ Lenses and Emblems
Use only lukewarm or cold water, a soft cloth, and a car washing soap to clean
exterior lamps and lenses. Follow instructions under "Washing the Vehicle" later
in this section. ...
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 the circui ...