GMC Terrain: Cooling System / Engine Coolant
GMC Terrain 2018-2026 Owners Manual / Vehicle Care / Vehicle Checks / Cooling System / 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. See Recommended Fluids and Lubricants and Maintenance Schedule.
The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating.
Cooling System
1.5L Gas Engine
Engine Cooling Fan (Out
of View)
Engine Coolant Surge Tank
and Pressure Cap
1.6L Diesel Engine
Engine Cooling Fan (Out
of View)
Engine Coolant Surge Tank
and Pressure Cap
2...
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...
Other information:
GMC Terrain 2018-2026 Owners Manual: Exhaust Fluid Quality Poor
Use only exhaust fluid that is GM approved, or fluid containing the API certified or ISO 22241 label. All DEF has an expiration date. If the system detects poor quality, or contaminated or diluted DEF, the DIC message EXHAUST FLUID QUALITY POOR - SEE OWNERS MANUAL NOW – 160 KM (99 MI) UNTIL 104 KM/H (65 MPH) MAX SPEED displays...
GMC Terrain 2018-2026 Owners Manual: Manual Operation
Select OFF to manually operate the liftgate. Caution Attempting to move the liftgate too quickly and with excessive force may result in damage to the vehicle. Operate the liftgate manually with a smooth motion and moderate speed. The system includes a feature which limits the manual closing speed to protect the components...
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