GMC Terrain: Cooling System / Checking Coolant
GMC Terrain 2018-2024 Owners Manual / Vehicle Care / Vehicle Checks / Cooling System / Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
Check to see if coolant is visible in the coolant surge tank. If the coolant inside the coolant surge tank is boiling, do not do anything else until it cools down. If coolant is visible but the coolant level mark is not visible, add a 50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank to the top rib on the middle of the tank, but be sure the cooling system is cool before this is done. See Engine Overheating.
The coolant surge tank is located in the engine compartment on the driver side of the vehicle. See Engine Compartment Overview.
What to Use
Warning
Plain water, or other liquids such
as alcohol, can boil before the
proper coolant mixture will. With
plain water or the wrong mixture,
the engine could get too hot but there would not be an overheat
warning...
How to Add Coolant to the Coolant Surge Tank
Warning
Steam and scalding liquids from a
hot cooling system are under
pressure. Turning the pressure
cap, even a little, can cause them
to come out at high speed and
you could be burned...
Other information:
GMC Terrain 2018-2024 Owners Manual: If the Vehicle Is Stuck
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. If stuck too severely for the traction system to free the vehicle, turn the traction system off and use the rocking method. See Traction Control/Electronic Stability Control...
GMC Terrain 2018-2024 Owners Manual: Remote Vehicle Start
If equipped, this feature allows you to start the engine from outside the vehicle. : This button will be on the RKE transmitter if the vehicle has remote start. The climate control system will use the previous settings during a remote start. The rear defog may come on during remote start based on cold ambient conditions...
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