How do you turn on the heater in your car? Simply starting the engine, adjusting the temperature, and turning on the fan will turn on the heater in your car.
How to Turn on Your Car Heater?
The last thing you want when you’re shivering in your seat is to inadvertently switch on the cold air instead of the warm air or to be forced to stare at all the dials and gauges without knowing which way will defrost your windshield and which way will worsen your visibility. Being able to effectively work your car’s heating and cooling system is essential to a comfortable and safe drive.
Fortunately, once you know which dials and switches operate your car heater, it’s not that difficult to turn it on. In fact, turning the car heater on in most cars is as simple as a three-step process:
- Turn the engine on (it may take five to ten minutes for the engine to heat up properly)
- Turn the temperature dial to a comfortable heat level
- Turn the blower motor to your desired fan level
If your car is equipped with an automatic heating and cooling system, you could be in for even less work. An automatic climate control system allows you to set temperature controls for both your warm air and cool air preferences. As soon as it is turned on, it will automatically blow out hot or cold air to maintain the temperature range you specify.
To set up your automatic climate control, find and press the “AUTO” button on your car’s dash and set the preferred temperature for the entire car or for both sides of the vehicle if you have the dual climate control option. After you input the temperature range the first time, you’ll only need to hit the “AUTO” button to get the warm air kicking.
Do You Turn on the Air Conditioning System for Heat in a Car?
Though we usually associate air conditioning with cool air, the air conditioning system in a vehicle controls both the heat and the cool air. To implement the AC system for heat, turn the temperature dial and fan setting dial clockwise, or if you have a digital display you’ll simply press the increase temperature button and turn the fan on.
How to Manually Turn on the Car Heater?
There are some older car models available that don’t offer the option of an automatic climate control system. Of course, some of you may prefer the manual method of operation so that you can modify the temperature of the car as your body temperature changes.
You will manually turn on the car heater in the absence of or in preference to using an automatic heater and cooler.
We now return to the initial, straightforward three steps. Start your engine, then let it idle for a while to warm up. Increase the heat by pushing the increase button on your digital display, rotating the wheel or dial, or toggling the temperature button. But until you turn on the fan and select your preferred fan speed, the warm air won’t start blowing out and dispersing throughout the cabin.
What Do the Different Heater Controls Do?
It’s true that a lot of vehicle heating system controls can appear to be rather complicated and intense. Once you know what each button or dial does, the operation of your heating controls is actually quite straightforward.
Usually, the temperature controls are noticeable. Many vehicles, particularly older models, have color coding: turn towards blue for cold air and red for hot air. However, cars with digital displays may skip the color coding and simply show you the actual temperature the system is set at.
There is also a chance that your vehicle comes equipped with dual temperature controls that can be customized differently for the driver’s side and the passenger’s side. Once you’ve reached the temperature you want, fiddle with the temperature controls.
Fan Speed Controls
Possibly one of the most significant heater controls, along with the temperature toggles, is the fan speed control. The fan speed controls allow you to change the blower motor’s fan speed, as you might have guessed. Air circulates more quickly inside a moving vehicle at higher speeds.
The air direction directly affects where the air is directed inside the car. Essentially, these controls will let you choose where you want the air to blow out from, and there are typically a few options:
- Windshield vents
- Dashboard/face vents
- Feet vents
- Face and feet vents
- Windshield and feet vents
A picture of a person usually appears with arrows pointing in various air directions. Simply choose your preferred air-blowing options.
Car heater systems bring in outside air, pass it through a heat exchanger, and then disperse it throughout the cabin. The recirculation button typically depicts a curved arrow and halts the heater system’s circulation of outside air, instead recirculating the cabin air.
This button is especially helpful when starting to warm up your car because it will heat up partially warm air more quickly than the chilly outside air. When the outside air quality is bad, you might also want to use the recirculation button.
Windshield and rear windshield defrosters
Anyone who has ever gotten into their car to find foggy, misty windows understands the value of your windshield defrosters. When you turn on the defroster controls, you signal the computer of your car’s heater control module to prioritize clearing the windshield and rear windshield.
Which Button is for Heat in Car?
Cars come in a variety of styles, and the same is true of their purposes. The location of the heat button in each car may therefore be a little difficult to pinpoint. However, the majority of car controls and features are comparable. The blower and the temperature regulator are the two main components of an automobile heater.
As a result, to turn on the heater, adjust the fan blower’s setting to your preference and turn the temperature dial on the control panel. Keep in mind that the blower and the thermometer regulate the heater and air conditioning. As a result, you must set the temperature gauge to the red area when using the heater.
Why Won’t My Heat Turn on in My Car?
Your car’s heater is a part of a larger system. In order to provide heat in the cabin, several components work together; if any of these stop working, the car heater may not function as intended. When you turn on the heater, you might experience cold or lukewarm air depending on the malfunctioning component.
Low coolant levels, faulty thermostats, clogged heater cores, defective heater fans, bad blower resistors, radiator leaks, damaged or broken HVAC controls, faulty wiring, and blown fuses are among the potential causes of a heater that won’t turn on.
How Long Does It Take for Heat to Turn on in Car?
Your car’s engine type and model will determine how it operates. It will take roughly 10 to 15 minutes of idling or driving for the cabin of a recent SUV or compact car with a four-cylinder engine to warm up completely. Older vehicles with larger engines will finish in 5–10 minutes. The engine needs to reach operating temperature within this 5 to 15 minute window.