GMC Terrain
GMC Terrain

See also:
Engine Coolant Heater
The engine coolant heater, if available, can help in cold weather conditions
at or below −18°C (0°F) for easier starting and better fuel economy during engine
warm-up. Plug in the coolant ...
Lumbar Adjustment
Manual Lumbar
If available, move the handle forward or rearward to increase or decrease lumbar support.
Power Lumbar
If available, press and hold the front or rear of control to increase or dec ...
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. The cord is secured to the Engine Compartment Fuse Block with a clip. Carefully remove the wire tie which bundles the electric ...





