Jeep Cherokee (KL): Automatic Temperature Control (ATC). Operating Tips

Automatic Temperature Control (ATC)

Automatic Operation

1. Push the AUTO button on the faceplate or press the "AUTO" button on the touchscreen.

2. Adjust the temperature you would like the system to maintain by adjusting the driver and passenger temperature buttons on the faceplate or buttons on the touchscreen. Once the desired temperature is displayed, the system will achieve and automatically maintain that comfort level.

3. When the system is set up for your comfort level, it is not necessary to change the temperature. You will experience the greatest efficiency by simply allowing the system to function automatically.


  • It is not necessary to move the temperature settings.

    The system automatically adjusts the temperature, mode, and blower speed to provide comfort as quickly as possible.

  • The temperature can be displayed in U.S. or Metric units by selecting the Uconnect customerprogrammable feature. Refer to the "Uconnect System Settings" in this section of the manual.

To provide you with maximum comfort in the Automatic mode, during cold start-ups the blower fan will remain on low until the engine warms up. The blower will increase in speed and transition into Auto mode.

Manual Operation Override

The system allows for manual selection of blower speed, air distribution mode, A/C status and recirculation control.

The blower fan speed can be set to any fixed speed by adjusting the blower control. The fan will now operate at a fixed speed until additional speeds are selected. This allows the front occupants to control the volume of air circulated in the vehicle and cancel the Auto mode.

The operator can also select the direction of the airflow by selecting one of the available mode settings. A/C operation and Recirculation control can also be manually selected in Manual operation.

NOTE: Each of these features operates independently from each other. If any feature is controlled manually, temperature control will continue to operate automatically.

Operating Tips

NOTE: 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.

A solution of 50% OAT (Organic Additive Technology) coolant that meets the requirements of FCA Material Standard MS.90032 and 50% water is recommended.

Refer to "Maintenance Procedures" in "Maintaining Your Vehicle" for proper coolant selection.

Winter Operation

Use of the air Recirculation mode during winter months is not recommended because it may cause window fogging.

Vacation Storage

Any time you store your vehicle or keep it out of service (i.e., vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in the fresh air and high blower setting. This will ensure adequate system lubrication to minimize the possibility of compressor damage when the system is started again.

Window Fogging

Interior fogging on the windshield can be quickly removed by turning the mode selector to Defrost. The Defrost/Floor mode can be used to maintain a clear windshield and provide sufficient heating. If side window fogging becomes objectionable, increase blower speed to improve airflow and clearing of the side windows.

Vehicle windows tend to fog on the inside in mild but rainy or humid weather.


  • Recirculate without A/C should not be used for long periods, as fogging may occur.
  • Automatic Temperature Controls (ATC) will automatically adjust the climate control settings to reduce or eliminate window fogging on the front windshield.

    When this occurs, recirculation will be unavailable.

Windshield Wiper De-icer - If Equipped

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

The windshield wiper de-icer 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. Upon exiting Remote Start, the climate control functions will resume their previous operation except, if the de-icer is active, the de-icer timer and operation will continue.

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.

A/C Air Filter

The climate control system filters outside air containing dust, pollen and some odors. Strong odors cannot be totally filtered out. Refer to "Maintenance Procedures" in "Maintaining Your Vehicle" for filter replacement instructions.

Control Setting Suggestions For Various Weather Conditions

Control Setting Suggestions For Various Weather Conditions

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