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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    Under the glove compartment
    Fold aside the upholstery covering the fuse boxes. 1. Press the cover's lock and fold it up. 2. The fuses are accessible. Positions-fuse box A Positions-fuse box B ...

    Manual air conditioning system
    ...

    Rear fog light
    Rear fog light The single rear fog light is located in the driver's side taillight cluster. The rear fog light will only function in combination with the high/low beam headlights. Press the ...