See also:

Warning Lights, Gauges, and Indicators
WARNING lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges co ...

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 ...

Increasing Speed While Using Cruise Control
If the cruise control system is already activated: - Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it. - To increase vehicle speed in ...