Impact sensing door unlock
All doors will be automatically unlocked when an impact causes the air bags to deploy.
Speed sensing door lock
All doors will be automatically locked when vehicle speed exceeds 9 mph (15 km/h).
All of the doors will be automatically unlocked after the engine is turned off.
Shift lever auto door lock
All doors will be automatically locked when shifting the shift lever out of P (Park) with the engine running.
You can activate or deactivate the Auto Door Lock/Unlock features from the User Settings Mode on the LCD display.
For more details, refer to the "LCD Display" section in this chapter.
Hyundai Elantra AD (2016-2020) Owners Manual: Blade Replacement
When the wipers no longer clean adequately, the blades may be worn or cracked,
and require replacement.
NOTICE
To prevent damage to the wiper arms or other components, do not attempt to
move the wipers manually.
NOTICE
The use of a non-specified wiper blade could result in wiper malfunction ...
Hyundai Elantra AD (2016-2020) Owners Manual: Detecting Sensor
The rear radars are located inside the rear bumper for detecting the side and
rear areas. Always keep the rear bumper clean for proper operation of the system.
NOTICE
The system may not work properly when the bumper has been damaged, or
if the rear bumper has been replaced or repaired.
...