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:

    Service Parts Identification Label
    This label, on the spare tire cover, has the following information: - Vehicle Identification Number (VIN). - Model designation. - Paint information. - Production options and special equipmen ...

    Safety Locks (Sedan and Wagon)
    The vehicle has rear door security locks. These prevent passengers from opening the rear doors from the inside. Lock Label shown The rear door security locks are located on the inside edge ...

    STS adds direct-injection V-6
    For 2008, STS will be the first GM vehicle equipped with a new 3.6-liter direct-injected V-6 engine. The new base powerplant, with 298 horsepower (222 kW), delivers 40 more horsepower; and torque ...