OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationRadio Controls without Touchscreen
The infotainment system is operated by using the pushbuttons, multifunction knobs,
and menus shown on the display.
Turning the System On or Off
/VOL (Power/Volume): Press to turn
the radio on and off.
Automatic Switch-Off
If the infotainment system has been turned on after the ignition is tu ...
Instrument Panel Illumination Control
This feature controls the brightness of the instrument panel controls and infotainment
display screen. The thumbwheel is to the left of the steering column on the instrument
panel.
(Instrument Panel Brightness):
Move the thumbwheel up or down to brighten or dim the instrument panel contr ...
Radio without Touchscreen
/VOL (Power/Volume)
Press to turn the system on and off.
Turn to adjust the volume.
Preset Buttons 1-6
Press and hold to store a station.
Press to go to a preset favorite station.
MENU/TUNE
Press to open menus and select menu items.
Turn to highlight menu i ...