See also:

Playing the Radio
(Power/Volume): 1. Press to turn the audio system on and off. 2. Turn to increase or to decrease the volume. 3. Press and hold for more than two seconds to turn off the navigation system, the Rea ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Parking on Hills
WARNING! Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the t ...