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 more than five minutes, the air intake position will automatically change to the outside (fresh) air position.
To cancel or reset the Automatic Ventilation
When the air conditioning system is on, select Face Level
mode and while pressing the A/C button,
press the recirculated air position button five times within three seconds.
Sunroof Inside Air Recirculation (if equipped)
When the heater or air conditioning system is on with the sunroof opened, the outside (fresh) air position will be automatically selected. At this time, if you press the recirculated air position button, the recirculated air position will be selected but will change back to the outside (fresh) air position after 3 minutes.
When the sunroof is closed, the air intake position will return to the original position that was selected.
Hyundai Elantra AD (2016-2020) Owners Manual: Shift-lock system & release
Shift-lock system
For your safety, the Intelligent Variable Transmission (IVT) has a shift-lock
system which prevents shifting the transmission from P (Park) into R (Reverse) unless
the brake pedal is depressed.
To shift the transmission from P (Park) into R (Reverse):
1. Depress and hold the ...
Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description
Exhaust emissions (CO, HC, NOx) are controlled by a
combination of engine modifications and the addition of special control
components.
Modifications to the combustion chamber, intake manifold, camshaft and ignition system form the basic control system.
These items have been int ...