GMC Terrain: Maintenance / 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. It should only be replaced by a new evaporator to ensure proper and safe operation.
During service, all refrigerants should be reclaimed with proper equipment. Venting refrigerants directly to the atmosphere is harmful to the environment and may also create unsafe conditions based on inhalation, combustion, frostbite, or other health-based concerns.
The air conditioning system requires periodic maintenance. See Maintenance Schedule.
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 2018-2025 Owners Manual: License Plate Lamp
Lamp Assembly Bulb Assembly Bulb Socket Bulb Lamp Assembly To replace one of these bulbs: Open the liftgate partway. See Liftgate. Push the lamp assembly outboard to remove. Pull the lamp assembly down to remove it from the liftgate. Turn the bulb socket (1) counterclockwise to remove it from the lamp assembly (3). Pull the bulb (2) straight out of the bulb socket (1). Pu..
GMC Terrain 2018-2025 Owners Manual: OnStar Additional Information
In-Vehicle Audio Messages Audio messages may play important information at the following times: Prior to vehicle purchase. Press to set up an account. After change in ownership and at 90 days. Transferring Service Press to request account transfer eligibility information. The Advisor can cancel or change account information. Selling/Transferring the Vehicle Call 1-888-4ONSTAR (1-88..
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