OnStar Services

See also:

Express-Down Window
This feature is on the front windows. Press the switch to the second position to activate the express-down feature. To stop the window as it is lowering, press down briefly on the switch again. ...

Certification Label
Label Example A vehicle-specific Certification label, found on the vehicle center pillar (B-pillar), tells you the gross weight capacity of the vehicle, called the Gross Vehicle Weight Rating ( ...

Off-Road Driving
This off-road guide is for vehicles that have all-wheel drive. If your vehicle does not have all-wheel drive, you should not drive off-road unless you are on a level, solid surface. Many of the ...