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:

    High-Beam On Light
    The high&-beam on light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer on page 6‑2 for more information. ...

    Listing All Paired and Connected Phones
    The system can list all cell phones paired to it. If a paired cell phone is also connected to the vehicle, the system responds with “is connected” after that phone name. 1. Press and hold for tw ...

    Power Outlets
    The accessory power outlets can be used to connect electrical equipment, such as a cell phone or MP3 player. There are four accessory power outlets in the following locations: below the CD slot, ...