GMC Terrain: Warning Lights, Gauges, and Indicators / Security Light

GMC Terrain. Security Light

The security light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator light turns off.

If the light stays on and the engine does not start, there could be a problem with the theft-deterrent system. See Immobilizer Operation.

    Diesel Exhaust Fluid (DEF) Warning Light

    This light, a Driver Information Center (DIC) Message, and a chime come on when there is an issue with the DEF. If the DEF issue has not been corrected, the light will continue to flash...

    High-Beam On Light, Front Fog Lamp Light and Lamps On Reminder

    High-Beam On Light This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer. IntelliBeam Light This light comes on when the IntelliBeam system, if equipped, is enabled...

    Other information:

    GMC Terrain 2018-2025 Owners Manual: Irregular Objects Affecting ACC


    ACC may have difficulty detecting the following objects: Vehicles in front of your vehicle that have a rear aspect that is low, small, or irregular An empty truck or trailer that has no cargo in the cargo bed Vehicles with cargo extending from the back end Non-standard shaped vehicles, such as vehicle transport, vehicles with a side car fitted, or horse carriages Vehicles that..

    GMC Terrain 2018-2025 Owners Manual: How to Wear Seat Belts Properly


    Follow these rules for everyone's protection. There are additional things to know about seat belts and children, including smaller children and infants. If a child will be riding in the vehicle, see Older Children or Infants and Young Children. Review and follow the rules for children in addition to the following rules. It is very important for all occupants to buckle up. Statistics show..

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