Hyundai Elantra: Windshield Defrosting and Defogging / 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).
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.
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 or
position. To can ...
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
...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Inhibitor Switch Troubleshooting
Fault Diagnosis
Fault Diagnosis for Symptom
Major Symptom Expected Cause Items to Check and Measures Shift lever inoperableFaulty shift cable tensionAdjust shift cable tension(refer to "Automatic Transaxle System – Inhibitor Switch")Faulty shift cable assembly/connec ...
Hyundai Elantra AD (2016-2020) Owners Manual: Master, Door Ajar, Trunk Open, Hood Open Warning Lights Light
Master Warning Light
This indicator light illuminates
• When there is a malfunction in operation in any of the following systems:
- Exterior lamp malfunction
- Blind-Spot Collision Warning (BCW) malfunction (if equipped)
- Lane Keeping Assist (LKA) System malfunction (if equipped)
- Tire P ...
