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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    Troubleshooting Tips
    If you are having trouble programming HomeLink , here are some of the most common solutions: • Replace the battery in the original hand-held transmitter. • Press the LEARN button on the Garage ...

    Luggage compartment
    LUGGAGE COMPARTMENT LIGHT (If installed) Luggage compartment light has a 3-position switch. The three positions are: o In the "DOOR" position, the luggage compartment light comes o ...

    Air cnditioning care
    Keeping the Condenser Clean The air conditioning condenser (and engine radiator) should be checked periodically for accumulation of dirt, dead insects, leaves, etc. These can interfere with max ...