OnStar Services

See also:

Playing the Radio
PWR (Power): Press this knob to turn the system on and off. VOL (Volume): Turn this knob clockwise or counterclockwise to increase or to decrease the volume. DISPL (Display): When the ig ...

Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle unless you check with your dealer/retailer first. Some electrical equipment can damage the vehicle and the damage would not be covered by th ...

Jump Starting
For more information about the vehicle battery, see Battery . If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following step ...