Hyundai Elantra AD: Windshield Defrosting and Defogging - Convenient Features of Your Vehicle - Hyundai Elantra AD 2017–2020 Owners ManualHyundai Elantra AD: Windshield Defrosting and Defogging

WARNING

Windshield heating

Do not use the Hyundai Elantra. Windshield Defrosting and Defogging or Hyundai Elantra. Windshield Defrosting and Defogging position during cooling operation in extremely humid weather. The difference between the temperature of the outside air and that of the windshield could cause the outer surface of the windshield to fog up, causing loss of visibility could cause an accident resulting in serious injury or death. In this case, set the mode selection knob or button to the Hyundai Elantra. Windshield Defrosting and Defogging position and fan speed control knob or button to a lower speed.

  • For maximum defrosting, set the temperature control to the extreme right/hot position and the fan speed control to the highest speed.
  • If warm air to the floor is desired while defrosting or defogging, set the mode to the floor-defrost position.
  • Before driving, clear all snow and ice from the windshield, rear window, side view mirrors, and all side windows.
  • Clear all snow and ice from the hood and air inlet in the cowl grill to improve heater and defroster efficiency and to reduce the probability of fogging up the inside of the windshield.

NOTICE

If the engine temperature is still cold after starting, then a brief engine warm up period may be required for the vented air flow to become warm or hot.

Manual Climate Control System

Hyundai Elantra. Manual Climate Control System

To defog inside windshield

1. Select any fan speed except “0” position.

2. Select desired temperature.

3. Select the Hyundai Elantra. Manual Climate Control System or Hyundai Elantra. Manual Climate Control System position.

4. The outside (fresh) air will be selected automatically. Additionally, the air conditioning will automatically operate if the mode is selected to the Hyundai Elantra. Manual Climate Control System position.

If the air conditioning and outside (fresh) air position are not selected automatically, press the corresponding button manually.

Hyundai Elantra. Manual Climate Control System

To defrost outside windshield

1. Set the fan speed to the highest (extreme right) position.

2. Set the temperature to the extreme hot position.

3. Select the Hyundai Elantra. Manual Climate Control System position.

4. The outside (fresh) air and air conditioning will be selected automatically.

Automatic Climate Control System

Hyundai Elantra. Automatic Climate Control System

To defog inside windshield

1. Select desired fan speed.

2. Select desired temperature.

3. Press the defroster button (Hyundai Elantra. Automatic Climate Control System).

4. The outside (fresh) air position will be selected automatically.

If the outside (fresh) air position is not selected automatically, adjust the corresponding button manually.

If the Hyundai Elantra. Automatic Climate Control System position is selected, lower fan speed is adjusted to a higher fan speed.

Hyundai Elantra. Automatic Climate Control System

To defrost outside windshield

1. Set the fan speed to the highest (extreme right) position.

2. Set the temperature to the extreme hot (HI) position.

3. Press the defroster button (Hyundai Elantra. Automatic Climate Control System).

4. The outside (fresh) air position will be selected automatically.

If the Hyundai Elantra. Automatic Climate Control System position is selected, lower fan speed is adjusted to a higher fan speed.

Defogging logic

To reduce the probability of fogging up the inside of the windshield, the air intake or air conditioning are controlled automatically according to certain conditions such as Hyundai Elantra. Defogging logic or Hyundai Elantra. Defogging logic position. To cancel or return the defogging logic, do the following.

Manual climate control system

1. Turn the ignition switch to the ON position.

2. Select the defroster position (Hyundai Elantra. Defogging logic).

3. Press the air intake control button at least 5 times within 3 seconds.

The process should be completed within 10 seconds after the defroster mode (Hyundai Elantra. Defogging logic) was selected.

The indicator on the air intake button blinks 3 times with 0.5 seconds of interval. It indicates that the defogging logic is canceled or returned to the programmed status.

If the battery has been discharged or disconnected, it resets to the defog logic status.

Automatic climate control system

1. Turn the ignition switch to the ON position.

2. Press the defroster button (Hyundai Elantra. Defogging logic).

3. While pressing the air conditioning button (A/C), press the air intake control button at least 5 times within 3 seconds.

The climate control information screen will blink 3 times with 0.5 seconds of interval. It indicates that the defogging logic is canceled or returned to the programmed status.

If the battery has been discharged or disconnected, it resets to the defog logic status.

Auto Defogging System (Only for Automatic Climate Control System)

Hyundai Elantra. Auto Defogging System (Only for Automatic Climate Control System)

Auto defogging reduces the possibility of fogging up the inside of the windshield by automatically sensing the moisture of inside the windshield.

The auto defogging system operates when the heater or air conditioning is on.

Information

The auto defogging system may not operate normally, when the outside temperature is below 14 °F (-10 °C).

Hyundai Elantra. Auto Defogging System (Only for Automatic Climate Control System)

When the Auto Defogging System operates, the indicator will illuminate.

If higher level of moisture are sensed in the vehicle, the Auto Defogging System will operate in the following order:

Step 1) The A/C button will turn ON.
Step 2) The air intake control will change to Fresh mode.
Step 3) The mode will be changed to defrost to direct airflow to the windshield.
Step 4) The fan speed will be set to MAX.

If the air conditioning is off or recirculated air position is manually selected while Auto Defogging System is ON, the Auto Defogging System Indicator will blink 3 times to signal that the manual operation has been canceled.

To cancel or reset the Auto Defogging System

Press the front windshield defroster button for 3 seconds when the ignition switch is in the ON position.

When the Auto Defogging System is canceled, ADS OFF symbol will blink 3 times and the ADS OFF will be displayed on the climate control information screen.

When the Auto Defogging System is reset, ADS OFF symbol will blink 6 times without a signal.

Information

  • When the air conditioning is turned on by Auto defogging system, if you try to turn off the air conditioning, the indicator will blink 3 times and the air conditioning will not be turned off.
  • For efficiency, do not select recirculated air position while Auto defogging system is operating.
  • When Auto defogging mode is selected, fan speed, temperature and intake mode which is adjusted manually are canceled for better defogging result.

NOTICE

Do not remove the sensor cover located on the upper end of the driver side windshield glass.

Damage to system parts could occur and may not be covered by your vehicle warranty.

Automatic Climate Control System
1. Driver's temperature control knob 2. Front windshield defrost button 3. Rear window defrost button 4. Fan speed control knob 5. Air intake control button 6. Passenger's temperature c ...

Climate Control Additional Features
Automatic Ventilation (if equipped) When the ignition switch is in the ON position or when the engine is running and temperature is below 59°F (15°C) with the recirculated air position selected ...