OnStar

See also:

Towing Equipment
Hitches It is important to have the correct hitch equipment. Crosswinds, large trucks going by and rough roads are a few reasons why the right hitch is needed. - The rear bumper on the vehicle ...

Passing
More passing distance is needed when towing a trailer. Because the rig is longer, it is necessary to go farther beyond the passed vehicle before returning to the lane. ...

Cooling System
The cooling system allows the engine to maintain the correct working temperature. When it is safe to lift the hood: A. Electric Engine Cooling Fan(s) (Out of View) B. Coolant Surge Tank and ...