Buick Encore: Vehicle Checks / Cooling System

Buick Encore 2020-2022 Owner's Manual / Vehicle Care / Vehicle Checks / Cooling System

The cooling system allows the engine to maintain the correct working temperature.

Buick Encore. Cooling System

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

Buick Encore. Cooling System

  1. Engine Cooling Fan (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.

Engine Coolant

The cooling system in the vehicle is filled with DEX-COOL engine coolant. This coolant is designed to remain in the vehicle for 5 years or 240 000 km (150,000 mi), whichever occurs first.

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.

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. The engine could catch fire and you or others could be burned.

Use a 50/50 mixture of clean drinkable water and DEX-COOL coolant. This mixture:

  • Gives freezing protection down to −37 °C (−34 °F), outside temperature.
  • Gives boiling protection up to 129 °C (265 °F), engine temperature.
  • Protects against rust and corrosion.
  • Will not damage aluminum parts.
  • Helps keep the proper engine temperature.

Caution

Do not use anything other than a mix of DEX-COOL coolant that meets GM Standard GMW3420 and clean, drinkable water. Anything else can cause damage to the engine cooling system and the vehicle, which would not be covered by the vehicle warranty.

Never dispose of engine coolant by putting it in the trash, pouring it on the ground, or into sewers, streams, or bodies of water. Have the coolant changed by an authorized service center, familiar with legal requirements regarding used coolant disposal. This will help protect the environment and your health.

Checking Coolant

The vehicle must be on a level surface when checking the coolant level. It is normal to see coolant moving in the upper coolant hose return line when the engine is running.

Buick Encore. Cooling System

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 is not at or above the mark pointed to, add a 50/50 mixture of clean drinkable water and DEX-COOL coolant.

Be sure the cooling system is cool before this is done.

If no coolant is visible in the coolant surge tank, add coolant as follows:

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. Never turn the cap when the cooling system, including the pressure cap, is hot. Wait for the cooling system and pressure cap to cool.

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. The engine could catch fire and you or others could be burned.

Warning

Spilling coolant on hot engine parts can burn you. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough.

Caution

Failure to follow the specific coolant fill procedure could cause the engine to overheat and could cause system damage. If coolant is not visible in the surge tank, contact your dealer.

If no problem is found, check to see if coolant is visible in the coolant surge tank. If coolant is visible but the coolant level is not at the indicated level mark, add a

50/50 mixture of clean, drinkable water and DEX-COOL coolant at the coolant surge tank, but be sure the cooling system, including the coolant surge tank pressure cap, is cool before you do it.

Buick Encore. Cooling System

  1. Remove the coolant surge tank pressure cap when the cooling system, including the coolant surge tank pressure cap and upper radiator hose, is no longer hot.

    Turn the pressure cap slowly counterclockwise about one-quarter of a turn. If you hear a hiss, wait for that to stop. This will allow any pressure still left to be vented out the discharge hose.

  2. Keep turning the pressure cap slowly and remove it.

    Buick Encore. Cooling System

  3. Fill the coolant surge tank with the proper mixture to the indicated level mark.
  4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fan.

    By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the indicated level mark.

  5. Replace the pressure cap tightly.
  6. Verify coolant level after the engine is shut off and the coolant is cold. If necessary, repeat coolant fill procedure Steps 1–6.

    If the coolant still is not at the proper level when the system cools down again, see your dealer.

Caution

If the pressure cap is not tightly installed, coolant loss and engine damage may occur. Be sure the cap is properly and tightly secured.

    Engine Air Cleaner/Filter

    The engine air cleaner/filter is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview. When to Inspect the Engine Air Cleaner/Filter For intervals on changing and inspecting the engine air cleaner/filter, see Maintenance Schedule...

    Engine Overheating

    The vehicle has an engine coolant temperature gauge to warn of the engine overheating. See Engine Coolant Temperature Gauge. If the decision is made not to lift the hood when this warning appears, get service help right away...

    Other information:

    Buick Encore 2020-2022 Owner's Manual: Reporting Safety Defects to General Motors


    In addition to notifying NHTSA (or Transport Canada) in a situation like this, notify General Motors. In the U.S., call 1-800-521-7300, or write: Buick Customer Assistance Center P.O. Box 33136 Detroit, MI 48232–5136 In Canada, call 1-800-263-3777 (English) or 1-800-263-7854 (French), or write: General Motors of Canada Company Customer Care Centre, Mail Code: CA1-163-005 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7 In Mexico, call 800-200-28425 or 800-466-0818...

    Buick Encore 2020-2022 Owner's Manual: Headlamps, Front Turn Signal and Parking Lamps


    Headlamp Assembly The vehicle has halogen high-beam and low-beam headlamps, an LED turn signal lamp, Daytime Running Lamps (DRL), and a sidemarker lamp on the headlamp assembly. High-Beam Headlamp Low-Beam Headlamp High-Beam Headlamp/Low-Beam Headlamp Open the hood...

    Categories

    Steering Wheel Adjustment

    Buick Encore. Steering Wheel Adjustment

    To adjust the steering wheel:

    Pull the lever down. Move the steering wheel up or down. Pull or push the steering wheel closer or away from you. Lift the lever up to lock the steering wheel in place.

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