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:

    When to Check and Change AutomaticTransmission Fluid
    A good time to check your automatic transmission fluid level is when the engine oil is changed. Change the fluid and filter at the intervals listed in Additional Required Services on page 482, and ...

    Background
    Given the fact that the vast majority of SUVs were rarely taken off-pavement by their owners, much less driven under serious off-road conditions, a new type of car-based "crossover SUV" ...

    Rear Safety Belt Comfort Guides
    This vehicle may have rear safety belt comfort guides. If not, they are available through the dealer. The guides may provide added safety belt comfort for older children who have outgrown booster ...