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:

    Playing Audio CD
    When an audio CD is playing, the display shows the current track and the amount of time that track has been playing, the total amount of time on the disc, and the current time running on the disc. ...

    Lower Anchors and Tethers for Children (LATCH System)
    The LATCH system holds a child restraint during driving or in a crash. This system is designed to make installation of a child restraint easier. The LATCH system uses anchors in the vehicle an ...

    Average Fuel Economy or Average Fuel Economy and Instantaneous Fuel Economy
    The Average Fuel Economy display shows the approximate average liters per 100 kilometers (L/100 km) or miles per gallon (mpg). This number is calculated based on the number of L/100 km (mpg) recorde ...