Power Door Locks
If available, the switches are on the front doors.
: Press to unlock the doors.
: Press to lock the doors.
See also:
Speedometer
The speedometer shows how fast the vehicle is moving in either kilometers per hour (km/h) or miles per hour (mph). The speedometer cannot be reset. ...
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 vehic ...
Radio(s)
Radio with USB, CD, and DVD (MP3)
: Press to turn the system on and off. Turn to increase or decrease the volume.
BAND: Press to choose between FM, AM, or XM™, if equipped.
: Select ra ...





