How To Turn On Heater In Car? [With Video Guide]

Starting your car’s engine is the first thing to do when you want to turn on your car heater. Usually, it takes 5-10 minutes for a vehicle to heat up. 

Yet, it depends on the weather and the vehicle and how much time it will take to warm up.

Your Car’s Air Conditioning Button Symbols Explained

How To Turn On Heater In Car

Controlling The Temperature Inside The Vehicle

YouTube video

Some cars still have manually controlled air controls, like Toyota. Usually, they have three knobs that can regulate air circulation and ventilation, temperature, and the air conditioning system. 

The air conditioning system can be adjusted by rotating it to your preferred temperature. Turning it clockwise will heat up the car, while counterclockwise does the contrary. 

Unless the A/C is turned on, the air blown is heated. The max level of A/C is when it is fully turned counterclockwise.

A button with a fan on it is where you can control the ventilation. Rotating it clockwise increases the amount of speed of the airflow. 

On the contrary, fully rotating it counterclockwise will turn off the fan. The air is distributed efficiently to the outlets that you can find inside your vehicle.

Additionally, the last button you need to familiarize yourself with is the airflow mode control. Knowing the button’s functions and where the air will flow once it goes out of the vents is necessary.

Icons You Will Find In The Airflow Mode Control

  • The air comes from the vents on the dashboard
  • The air comes from the vents on the dashboard and floor
  • The air comes from the floor vents
  • The air comes from the floor vents and defroster vents at the base of the windshield
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Using the heater and the airflow mode control, choose the air that comes in the vents on the dashboard, select your preferred fan speed, and control the temperature.

Frequently Asked Questions

What are the common car heater problems?

There are 4 common car heater problems that you can encounter, especially when you use it regularly.


A thermostat is what warms up and cools your vehicle, so if there’s a problem with the heater, checking it should be the first thing to do. When your thermostat is worn-out, it can easily overheat or cool, depending on its use.

Gunk and Grime

Your coolant system can get dirty, too, especially when used regularly. The coolant system helps regulate the air, so when it’s clogged, it prevents airflow. 

If it’s not fixed quickly, it can cause major issues. The mechanic can check the heating system and amend the problem.

Electrical Problems

In some cases, you can find heating system problems in your vehicle’s electrical system. Fuses, fan motors, or loose wires can be one of the reasons why your car is facing such issues. 

Immediately contact your mechanic when you feel that the blower motor is not running or if you don’t hear a sound of air coming out.

Heater Controls

Broken, clogged, or stuck heating controls can be one of the problems that you can encounter. Sometimes, the controls are not properly connected, causing your car not to get heated up. 

Communicating with your trusted mechanic can help you solve almost all the problems of your car heating system.

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What are the indicators that you have a car heater failure?

A lack of warmth is the most common sign that your car heater is broken. Even if you think it is not much of a big deal, it can still lead to major issues. 

Another one is when it doesn’t sound when it is turned on. 

Why should you take care of your car’s heater?

A car heater gives you convenience and comfort, but it also warms and controls your car engine’s temperature. Not thinking about how it will cause you in the future can lead to bigger problems. 

It might turn into overheating or too much cooling.

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