GMC Terrain: Diagnostics - OnStar Services - OnStar - GMC Terrain Owner's ManualGMC Terrain: 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.

    OnStar Mobile App
    With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there is cell ...

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    Tire Pressure Monitoring System (TPMS)
    Your vehicle is equipped with a tire pressure monitoring system (TPMS) that turns on every time you start the engine and monitors the pressure in your tires while driving. Each tire has its o ...

    Instrument Cluster Descriptions
    1. Fuel Gauge The fuel gauge shows level of fuel in tank when ignition switch is in the ON/RUN position. 2. Fuel Door Reminder This symbol indicates the side of the vehicle where the fuel cap ...

    Child safety locks
    Each rear door has a child safety lock that prevents the door from being opened even if the inside door handle is pulled. When the child safety lock lever is in the lock position, the door ca ...