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 an Advisor can run a check., and an Advisor can run a check.

    See also:

    Total Weight on the Vehicle's Tires
    Be sure the vehicle's tires are inflated to the upper limit for cold tires. These numbers can be found on the Certification label or see Vehicle Load Limits for more information. Make sure not to go ...

    Cargo Management System (Wagon Only)
    Press the bottom of the load floor handle assembly to lift the top on the handle. Pull up on the handle to open the cargo management system. The cover can be opened to two positions to ...

    Heated Rear Seats
    WARNING If you cannot feel temperature change or pain to the skin, the seat heater may cause burns even at low temperatures. See the Warning under Heated and Ventilated Front Seats  . ...