Hyundai Sonata: Convenient features of your vehicle / 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 cancel or return the defogging
logic, do the following.
Manual climate control system
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1. Turn the ignition switch to the ON position.
2. Press the defroster button ()
within 10 seconds.
3. Press the air intake control button at least 5 times within 3 seconds.
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
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1. Turn the ignition switch to the ON position.
2. Press the defroster button ().
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.
Automatic Climate Control System
To defog inside windshield
1. Select desired fan speed.
2. Select desired temperature.
3. Press the defroster button ().
4. The outside (fresh) air position will be selected automatically.
If the out ...
Climate control additional features
Automatic Ventilation
When the ignition switch is in the ON position or when the engine is running
and outside temperature is below 59°F (15°C). At the same time, when A/C mode is
off and mode is ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
On-vehicle Inpection
•
First of all, check for DTCs. If a DTC is present, perform
troubleshooting in accordance with the procedure for that DTC. (Refer to
DTC guide)
•
Check that the battery cables are connected to the correct termina ...
Hyundai Sonata LF 2014-2019 Owners Manual: Vehicle Load Limit
Two labels on your driver’s door sill show how much weight your vehicle was designed
to carry: the Tire and Loading Information Label and the Certification Label.
Before loading your vehicle, familiarize yourself with the following terms for
determining your vehicle's weight ratings, from the ve ...
