GMC Terrain: Air Conditioning - Automatic Climate Control System - Climate Control Systems - Climate Controls - GMC Terrain Owner's ManualGMC Terrain: Air Conditioning

A/C (Air Conditioning): Press to turn the air conditioning on or off. If the fan is turned off or the outside temperature falls below freezing, the air conditioning will not work. When in AUTO, the air conditioning will come on automatically as needed.

the recirculation. Press to alternate between recirculation and outside air, if (Recirculation): Press to turn on the recirculation. Press to alternate between recirculation and outside air, if the vehicle does not have a separate outside air button.

The indicator light turns on when recirculation is selected. Air is recirculated inside the vehicle. It helps quickly cool the air inside the vehicle or prevent outside air and odors from entering.

to turn on the outside air. An indicator light comes on. Outside air is circulated(Outside Air, If Equipped): Press to turn on the outside air. An indicator light comes on. Outside air is circulated throughout the vehicle.

    Manual Operation
    (Power): Press to turn the climate control system on or off. (Fan Control): Turn to increase or decrease the fan speed. Adjusting the fan speed while in automatic mode places the fan under ma ...

    Rear Window Defogger
    REAR (Rear Defogger): Press to turn the rear window defogger on or off. The rear window defogger turns off after about 10 minutes. It can also be turned off by turning the ignition to ACC/ACCESSO ...

    See also:

    Folding back the mirrors
    Push backward to fold the mirrors. ■When the mirrors are fogged up (vehicles with outside rear view mirror defoggers) Turn on the mirror defoggers to defog the mirrors. CAUTION ■Whe ...

    Fuel Recommendation
    Your vehicle is designed to operate on unleaded gasoline with a pump octane number of 87 or higher. Use of a lower octane gasoline can cause a persistent, heavy metallic rapping noise that c ...

    Potential Issues
    Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, ...