See also:

Transmission
Driver Shift Control (DSC) The DSC switch is located on the shift lever. To enable the DSC feature: 1. Move the column shift lever to the M(Manual) position. The Driver Information Center (DIC) ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...

Testing the Alarm
To test the alarm: 1. From inside the vehicle, lower the driver window and open the driver door. 2. Activate the system by locking the doors with the power door lock switch while the door is open, ...