Audio System
When using the in-vehicle Bluetooth system, sound comes through the vehicle’s front audio system speakers and overrides the audio system. Use the audio system volume knob, during a call, to change the volume level.
The adjusted volume level remains in memory for later calls. To prevent missed calls, a minimum volume level is used if the volume is turned down too low.
See also:
Setting Cruise Control
If the cruise button is on when not in use, it could get bumped and go into cruise
when not desired. Keep the cruise control button off when cruise is not being used.
To set a speed:
1. Press to ...
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. ...
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 ...