GMC Terrain: Setting Adaptive Cruise Control / Erasing Speed Memory

The ACC set speed is erased from memory if GMC Terrain. Erasing Speed Memory is pressed or if the ignition is turned off.

    Disengaging ACC

    T..

    Weather Conditions Affecting ACC

    If the interior temperature is extremely high, the instrument cluster may indicate that ACC is temporarily unavailable. This can be caused by extreme hot weather conditions with direct sunlight on the front camera...

    Other information:

    GMC Terrain 2018-2021 Owners Manual: Tire Terminology and Definitions


    Air Pressure : The amount of air inside the tire pressing outward on each square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi (pounds per square inch). Accessory Weight : The combined weight of optional accessories. Some examples of optional accessories are automatic transmission, power windows, power seats, and air conditioning...

    GMC Terrain 2018-2021 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..

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