Jeep Wrangler: CLIMATE CONTROLS / Operating Tips


Refer to the chart at the end of this section for suggested control settings for various weather conditions.

Summer Operation

The engine cooling system must be protected with a high-quality antifreeze coolant to provide proper corrosion protection and to protect against engine overheating. OAT coolant (conforming to MS.90032) is recommended.

Winter Operation

To ensure the best possible heater and defroster performance, make sure the engine cooling system is functioning properly and the proper amount, type, and concentration of coolant is used. Use of the Air Recirculation mode during Winter months is not recommended, because it may cause window fogging.


For information on maintaining the Climate Control system when the vehicle is being stored for an extended period of time.

Window Fogging

Vehicle windows tend to fog on the inside in mild, rainy, and/or humid weather. To clear the windows, select Defrost or Mix mode and increase the front blower speed. Do not use the Recirculation mode without A/C for long periods, as fogging may occur.

Outside Air Intake

Make sure the air intake, located directly in front of the windshield, is free of obstructions, such as leaves. Leaves collected in the air intake may reduce airflow, and if they enter the plenum, they could plug the water drains. In Winter months, make sure the air intake is clear of ice, slush, and snow.

Cabin Air Filter

The climate control system filters out dust and pollen from the air. Contact an authorized dealer to service your cabin air filter, and to have it replaced when needed.

Stop/Start System — If Equipped

While in an Autostop, the Climate Control system may automatically adjust airflow to maintain cabin comfort. Customer settings will be maintained upon return to an engine running condition.

Windshield Wiper De-Icer — If Equipped

The windshield wiper de-icer is a heating element located at the base of the windshield.

It operates automatically once the following conditions are met:

  • Activation By Front Defrost

    The wiper de-icer activates automatically during a cold weather manual start with full defrost, and when the ambient temperature is below 33°F (0.6°C).

  • Activation By Rear Defrost

    The wiper de-icer activates automatically when the Rear Defrost is operating and the ambient temperature is below 33°F (0.6°C).

  • Activation By Remote Start Operation

    When the Remote Start is activated and the outside ambient temperature is less than 33°F (0.6°C) the windshield wiper de-icer is activated. Exiting remote start will resume its previous operation, except if the Windshield Wiper De-Icer is active. If the Windshield Wiper De-Icer is active, the timer and operation will continue.

Operating Tips Chart


The below chart is for Manual Override Operation.

Jeep Wrangler. Operating Tips

Jeep Wrangler. Operating Tips

    Climate Voice Commands

    Adjust vehicle temperatures hands-free and keep everyone comfortable while you keep moving ahead. Push the VR button on the steering wheel. After the beep, say one of the following commands: “Set the driver temperature to 70 degrees” “Set the passenger temperature to 70 degrees” Did You Know: Voice Command for Climate may only be used to adjust the interior temperature of your vehicle...



    Other information:

    Jeep Wrangler 2018-2024 Owners Manual: Automatic Headlights — If Equipped, Lights-On Reminder

    Automatic Headlights This system automatically turns the headlights on or off according to ambient light levels. To turn the system on, rotate the headlight switch clockwise to the last detent for automatic headlight operation. When the system is on, the headlight time delay feature is also on...

    Jeep Wrangler 2018-2024 Owners Manual: Diesel Exhaust Fluid Storage

    Diesel Exhaust Fluid (DEF) is considered a very stable product with a long shelf life. If DEF is kept in temperatures between 10° and 90°F (-12° and 32°C), it will last a minimum of one year. DEF is subject to freezing at the lowest temperatures...


    To Unlock From The Driver or Passenger Side

    With a valid Passive Entry key fob within 5 ft (1.5 m) of the door handle, grab the handle to unlock the vehicle. Grabbing the driver’s door handle will unlock the driver door automatically. Grabbing the passenger door handle will unlock all doors and the swing gate automatically.

    Jeep Wrangler. To Unlock From The Driver or Passenger Side

    Grab The Door Handle To Unlock

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