Toyota
Buick Regal
 2018-2022 Owners Manual
Vehicle Care » Vehicle Checks
Engine Overheating

The vehicle has an engine coolant temperature gauge and an engine coolant temperature warning light on the instrument cluster to warn of engine overheating.

If it is decided not to lift the hood when this warning appears, but instead get service help right away.

If it is decided to lift the hood, make sure the vehicle is parked on a level surface.

Then check to see if the engine cooling fans are running. If the engine is overheating, both fans should be running. If they are not, do not continue to run the engine, and have the vehicle serviced.

Caution: 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 Compartment

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.

If No Steam Is Coming from the Engine Compartment

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 overheat zone or the engine coolant temperature warning light no longer displays, the vehicle can be driven.

Continue to drive the vehicle slowly for about 10 minutes. Keep a safe vehicle 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.

    More about «Vehicle Checks»:

    Doing Your Own Service Work

    Engine Compartment Overview

    Engine Oil

    Selecting the Right Engine Oil

    Engine Oil Life System

    Engine Air Cleaner/Filter

    Cooling System

    Checking Coolant

    Engine Overheating

    Washer Fluid

    Brakes

    Brake Fluid

    Battery - North America

    All-Wheel Drive

    Wiper Blade Replacement

    Windshield Replacement

    Buick Regal 2018-2022 Owners Manual / Vehicle Care / Vehicle Checks / Engine Overheating

    Buick Regal 2018-2022 Owners Manual

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