See also:

Shifting out of Park
This vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to: Prevent ignition key removal unless the shift lever is in P (Park) with the shift ...

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 hot and n ...

OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system ...