When you move the shift lever to the R (Reverse) position, the side view mirror(s) will rotate downwards to aid with driving in reverse. The position of the side view mirror switch (1) determines whether or not the mirrors will move:
Left/Right : When either the L (Left) or R (Right) switch is selected, both side view mirrors will move.
Neutral : When neither switch is selected, the side view mirrors will not move.
The side view mirrors will automatically revert to their original positions if any of the following occur:
Hyundai Elantra AD (2016-2020) Service Manual: Output Speed Sensor Specifications
Specifications
? Type: Hall effect sensor
? Specifications
ItemsSpecificationsOperation condition [°C(°F)](-40 ~ 150) -40 ~ 302Output voltage(V)High1.18 ~ 1.68Low0.59 ~ 0.84
...
Hyundai Elantra AD (2016-2020) Owners Manual: Transmission ranges
The indicator in the instrument cluster displays the shift lever position when
the ignition switch is in the ON position
P (Park)
Always come to a complete stop before shifting into P (Park).
To shift from P (Park), you must depress firmly on the brake pedal and make sure
your foot is off the ...