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 OnStar Additional Information, and an Advisor can run a check.

    See also:

    Finding a Category (CAT) Station
    To find XM channels in a category: 1. Press the CAT button to display the category tabs. Continue pressing the CAT button until the desired category name displays. • Radios with CD and DVD can als ...

    Cruise Control
    Cruise Control : Press to turn the system on or off. The indicator light is on when cruise control is on and turns off when cruise control is off. : Press briefly to make the vehicle resume to ...

    Power Outlets
    Accessory power outlets can be used to plug in electrical equipment, such as a cell phone, MP3 player, etc. The vehicle may have two accessory power outlets located below the climate control system, ...