Skip the auto shop - Our mechanics make house calls

Q: How do you use the heater and air conditioner?

asked by on

How do you use the heater and air conditioner?

A: Depending on the trim level of your car, yo...

Depending on the trim level of your car, you have either a manual heater and air conditioner or an automatic climate control system. If your system is manual, here’s how to use it:

  1. Heat: To turn on the heat, simply adjust the temperature gauge from cold to warm. The A/C can be on or off, and you can set the blower level to your preferred setting (feet, feet and upper vents, or just upper vents).

  2. Air Conditioner: To turn on the air, simply press the A/C button and then adjust the temperature control to your preferred temperature. Adjust the blower dial to your preferred setting. Pressing the max A/C button will turn the system to maximum cooling.

  3. Defrost: To turn on the defrost, press the front defrost button on the heating and air conditioner controls and then adjust the blower and temperature to your liking. To turn on the rear defroster, just push the rear defrost button.

Tip

To use dehumidified heat, turn on the air conditioner and then set the temperature to warm. The A/C system will pull the humidity from the air. Make sure you set the system to recirculate, rather than fresh air.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car wont start but cranks 1998 Nissan Altima

Hey there, thanks for writing in about your 1998 Altima. You may have a crankshaft or camshaft sensor causing the no start. You can scan the computer and watch the data to see if one or both of these sensors...

Q: Floor mat entrapped accelerator, increasing speed, and destroyed engine

Hello. I have seen this occur several times on this particular model. Due to the design of the floor mat it comes loose and gets under the gas pedal which causes this to occur. This happens even more often with...

Q: How do I change the audio controls?

You can change the audio controls in your sound system very easily, to personalize it to your liking. To do so, press the Audio button until the setting you would like to change is displayed. The customizable settings are Bass,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...