GMC Terrain: Climate Controls / Maintenance

Air Vents

Use the louvers located on the air vents to change the direction of the airflow. To open or close off the airflow: On the center air vents, move the slider knobs up or down...

Passenger Compartment Air Filter

The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance...

Other information:

GMC Terrain 2018-2026 Owners Manual: Service

All vehicles have a label underhood that identifies the refrigerant used in the vehicle. The refrigerant system should only be serviced by trained and certified technicians. The air conditioning evaporator should never be repaired or replaced by one from a salvage vehicle...

GMC Terrain 2018-2026 Owners Manual: Top Tier Fuel (Gasoline and Diesel)

Top Tier Fuel (Gasoline) GM recommends the use of TOP TIER Detergent Gasoline to keep the engine clean, reduce engine deposits, and maintain optimal vehicle performance. Look for the TOP TIER Logo or see www.toptiergas.com for a list of TOP TIER Detergent Gasoline marketers and applicable countries...