See also:

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 the v ...

Starting the Engine
When first starting the vehicle, the engine idle speed will be elevated to allow the catalytic converter, an emissions control device, to quickly reach operating temperature. After approximat ...

Clock
The analog clock is on the instrument panel above the radio. The clock is not connected with any other vehicle system and runs by itself. To adjust the clock: 1. Locate the adjustment buttons ...