OnStar Services

See also:

Driving on Grades
Reduce speed and shift to a lower gear before starting down a long or steep downgrade. If the transmission is not shifted down, the brakes might have to be used so much that they would get h ...

Add-On Electrical Equipment
Notice: Do not add anything electrical to the vehicle unless you check with your dealer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle&# ...

Heated and Ventilated Seats
Heated and Ventilated Seat Buttons Shown, Heated Seat Buttons Similar If available, the buttons are on the climate control panel. To operate, the ignition must be on. Press to heat the seat c ...