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:

    Convex Mirrors
    WARNING! A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right. Chec ...

    Off-Road Recovery
    The vehicle's right wheels can drop off the edge of a road onto the shoulder while driving. If the level of the shoulder is only slightly below the pavement, recovery should be fairly easy. Ease o ...

    Remote Keyless Entry (RKE) System
    See Radio Frequency Statement  for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. If there is a decrease ...