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Chevrolet Blazer 2023 3.6L V6 Engine User Guide

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Chevrolet Blazer 2023 3.6L V6 Engine Only User Guide

3.6L V6 Engine OnlyChevrolet Blazer 2023 3.6L V6 Engine Only User Guide 01

  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.
    Chevrolet Blazer 2023 3.6L V6 Engine Only User Guide 02
  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 the 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.

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

2.0L L4 Engine Only – Automatic Coolant Service Fill Instructions
If equipped, this feature assists in filling and removing air from the cooling system after the service of components or when coolant is added after being too low.

To activate the fill and air removal process:

  1. With a cold system, add coolant to the indicated mark on the surge tank.
  2. Replace the cap on the surge tank.
  3. Connect the vehicle to a battery charger.
  4. Turn the ignition to Service Mode. See Ignition Positions 0 192.
  5. Turn off the air conditioning.
  6. Set the parking brake.
  7. At the same time, press the accelerator and the brake for two seconds, then release.

At the end of the cycle, check the coolant level in the surge tank and add coolant if it is low. Turn off the vehicle, allow the Electronic Control Module (ECM) to go to
sleep, for about two minutes, and repeat Steps 4–7. Listen for pump activation and movement of the control valves while watching the level of the coolant in the surge tank. If the tank empties, turn the ignition off, carefully remove the surge tank cap, refill to the indicated mark, and repeat Steps 4–7. The fill and air removal process will run for approximately 10 minutes.

Engine Overheating
The vehicle has several indicators to warn of the engine overheating. There is an engine coolant temperature gauge on the instrument cluster. See Engine Coolant Temperature Gauge 0 97. The vehicle may also display a message on the Driver Information Center (DIC). If the decision is made not to lift the hood when this warning appears, get service help right away. See Roadside Assistance Program 0 332. If the decision is made to lift the hood, make sure the vehicle is parked on a level surface. Then check to see if the engine cooling fan is running. If the engine is overheating, the fan should be running. If it is not, do not continue to run the engine. Have the vehicle serviced?

Do not run the engine if there is a leak in the engine cooling system. This can cause a loss of all coolant and can damage the system and vehicle. Have any leaks fixed right away? If Steam Is Coming from the Engine.


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.

If No Steam Is Coming from the Engine

If an engine overheat warning is displayed but no steam can be seen or heard, the problem may not be too serious. Sometimes the engine can get a little too hot when the vehicle:

  • Climbs a long hill on a hot day.
  • Stops after high-speed driving.
  • Idles for long periods in traffic.

If the overheat warning is displayed with no sign of steam:

  1. Turn the air conditioning off.
  2. Turn the heater on to the highest temperature and to the highest fan speed. Open the windows as necessary.
  3. When it is safe to do so, pull off the road, shift to P (Park) or N (Neutral), and let the engine idle. If the engine coolant temperature gauge is no longer in the overheated area, the vehicle can be driven. Continue to drive the vehicle slowly for about 10 minutes. Keep a safe distance from the vehicle in front. If the warning does not come back on, continue to drive normally and have the cooling system checked for proper fill and function. If the warning continues, pull over, stop, and park the vehicle right away. If there is no sign of steam, idle the engine for three minutes while parked. If the warning is still displayed, turn off the engine until it cools down.

Washer Fluid

What to Use
When windshield washer fluid is needed, be sure to read the manufacturer’s instructions before use. If operating the vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.

Adding Washer Fluid
Chevrolet Blazer 2023 3.6L V6 Engine Only User Guide 03

Open the cap with the washer symbol on it. Add washer fluid until the tank is full. See Engine Compartment Overview 0 250 for reservoir location.


  • Do not use a washer fluid that contains any type of water-repellent coating. This can cause the wiper blades to chatter or skip.
  • Do not use engine coolant (antifreeze)in the windshield washer. It can damage the windshield washer system and paint.
  • Do not mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage the washer fluid tank and other parts of the washer system.
  • When using concentrated washer fluid, follow the manufacturer’s instructions for adding water.
  • Fill the washer fluid tank only three-quarters full when it is very cold. This allows for fluid expansion if freezing occurs, which could damage the tank if it is completely full.


Disc brake linings have built-in wear indicators that make a high-pitched warning sound when the brake linings are worn and new linings are needed. The sound can come and go or can be heard all the time when the vehicle is moving, except when applying the brake pedal firmly.

The brake wear warning sound means that soon the brakes will not work well. That could lead to a crash. When the brake wear warning sound is heard, have the vehicle serviced.

Continuing to drive with worn-out brake linings could result in costly brake repairs. Some driving conditions or climates can cause a brake squeal when the brakes are first applied, clearing up following several applications.

This does not mean something is wrong with the brakes. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake linings for wear and evenly tighten wheel nuts in the proper sequence to torque specifications. See
Capacities and Specifications 0 326. Brake pads should be replaced as complete axle sets.

Brake Pedal Travel
See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service may be required. Replacing Brake System Parts Always replace brake system parts with new, approved replacement parts. If this is not done, the brakes may not work properly. The braking performance can hinge in many ways if the wrong brake parts are installed or if the parts are improperly installed.

Chevrolet Blazer 2023 Top Accessories

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