OnStar Services

See also:

Driving on Grades
Notice: Do not tow on steep continuous grades exceeding 6 miles (9.6 km). Extended, higher than normal engine and transmission temperatures may result and damage the vehicle. Frequent stops ar ...

Ending Cruise Control
There are three ways to end cruise control: • Step lightly on the brake pedal. • Press the button on the steering wheel. • Press the button on the steering wheel. ...

If No Steam Is Coming From The Engine Compartment
If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle: • Climbs a lo ...