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 InformationRear Window Wiper/ Washer
If equipped with the rear wiper/ washer, the controls are on the end of the windshield
wiper lever.
Turn the rear wiper/washer band to operate the rear window wiper/ washer.
ON: Turns the rear wiper on for continuous wipes.
OFF: Turns the rear wiper off.
(Rear Washer): Sprays washer fluid ...
Interior Glass
To clean, use a terry cloth fabric dampened with water. Wipe droplets left behind
with a clean dry cloth.
Commercial glass cleaners may be used, if necessary, after cleaning the interior
glass with plain water.
Caution
To prevent scratching, never use abrasive cleaners on automotive
glass. ...
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 ...