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 vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push 
, and an Advisor can run a check.
See also:
Under the Hood
General Motors offers a selection of five engines to accommodate a variety of
cargo- and passenger-hauling requirements. Choices begin with a 200-horsepower,
4.3-liter V-6 for the G1500 van. Depen ...
Using Softkeys to Play a DVD-A (Audio)
Once a DVD-A is inserted, the radio display menu shows several tab options for playback. Press the softkey located under any tab option during DVD-A playback.
(Play/Pause): Press either the play or ...
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to ...