GMC Terrain: Cooling System / Engine Coolant
GMC Terrain 2018-2025 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 2018-2025 Owners Manual: Alerting the Driver
If ACC is engaged, driver action may be required when ACC cannot apply sufficient braking because of approaching a vehicle too rapidly. When this condition occurs, six red lights will flash on the windshield. Either eight beeps will sound from the front, or both sides of the Safety Alert Seat will pulse five times...
GMC Terrain 2018-2025 Owners Manual: Diesel Engine Starting Procedure
The diesel engine starts differently than a gasoline engine. With the Keyless Access system, the RKE transmitter must be in the vehicle. Press ENGINE START/STOP and observe the wait-to-start light. See Wait-to-Start Light 0 139. This light may not come on if the engine is warm...
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