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 2018-2026 Owners Manual: Irregular Objects Affecting ACC


ACC may have difficulty detecting the following objects: Vehicles in front of your vehicle that have a rear aspect that is low, small, or irregular An empty truck or trailer that has no cargo in the cargo bed Vehicles with cargo extending from the back end Non-standard shaped vehicles, such as vehicle transport, vehicles with a side car fitted, or horse carriages Vehicles that..

GMC Terrain 2018-2026 Owners Manual: Cargo Cover


Warning An unsecured cargo cover could strike people in a sudden stop or turn, or in a crash. Store the cargo cover securely or remove it from the vehicle. Warning Do not place objects on the cargo cover. Sudden stops or turns can cause objects to be thrown in the vehicle. You or others could be injured. If equipped, use the cargo cover to cover items in the rear of the vehicle. To remov..

Copyright © 2026 www.gmcterrain2.com