GMC Terrain: Vehicle Checks / Cooling System

GMC Terrain. Cooling System

1.5L Gas Engine

  1. Engine Cooling Fan (Out of View)
  2. Engine Coolant Surge Tank and Pressure Cap

GMC Terrain. Cooling System

1.6L Diesel Engine

  1. Engine Cooling Fan (Out of View)
  2. Engine Coolant Surge Tank and Pressure Cap

GMC Terrain. Cooling System

2.0L Gas Engine

  1. Engine Cooling Fans (Out of View)
  2. Engine Coolant Surge Tank and Pressure Cap

Warning

An underhood electric fan can start up even when the engine is not running and can cause injury. Keep hands, clothing, and tools away from any underhood electric fan.

Warning

Do not touch heater or radiator hoses, or other engine parts. They can be very hot and can burn you. Do not run the engine if there is a leak; all coolant could leak out. That could cause an engine fire and can burn you. Fix any leak before driving the vehicle.

If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. The vehicle should be parked on a level surface.

The coolant level should be at the top rib on the middle of the tank. If it is not, the vehicle may have a leak at the radiator hoses, heater hoses, radiator, water pump, or somewhere else in the cooling system.

If there seems to be no leak, with the engine on, check to see if the electric engine cooling fan is running. If the engine is overheating, the fan should be running. If it is not, the vehicle needs service. Turn off the engine.

How to Reinstall the Engine Air Cleaner/Filter

Align the air cleaner/filter with the indicated point on the base of the air cleaner/filter housing and install the air cleaner/filter. The outer air cleaner/filter seal must be fitted properly in the air cleaner/filter housing...

Engine Coolant

The engine cooling system in the vehicle is filled with DEX-COOL engine coolant mixture. This coolant needs to be checked and changed at appropriate levels...

Other information:

GMC Terrain 2018-2023 Owners Manual: Adaptive Cruise Control


If equipped, Adaptive Cruise Control (ACC) allows the cruise control set speed and following gap to be selected. Read this entire section before using this system. The following gap is the following time between your vehicle and a vehicle detected directly ahead in your path, moving in the same direction...

GMC Terrain 2018-2023 Owners Manual: Roadside Assistance Program


For U.S.-purchased vehicles, call 1-888-881-3302; (Text Telephone (TTY): 1-888-889-2438). For Canadian-purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year. Calling for Assistance When calling Roadside Assistance, have the following information ready: Your name, home address, and home telephone number Telephone number of your location Location..

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