Operates as follows when the ignition switch is in the ON position.
MIST : For a single wiping cycle, push the lever upward and release. The wipers will operate continuously if the lever is held in this position.
OFF : Wiper is not in operation.
INT : Wiper operates intermittently at the same wiping intervals. To vary the speed setting, move the speed control lever. The top most setting will run the wipers most frequently (for more rain). The bottom setting will run the wipers the least frequently (for less rain).
LO : The wiper runs at a lower speed.
HI : The wiper runs at a higher speed.
Information
If there is heavy accumulation of snow or ice on the windshield, defrost the windshield for about 10 minutes, or until the snow and/or ice is removed before using the windshield wipers to ensure proper operation.
If you do not remove the snow and/or ice before using the wiper and washer, it may damage the wiper and washer system.
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) Service Manual: Repair procedures
Adjustment
Glass Adjustment
•
Check the glass run channel for damage or deterioration, and replace them if necessary.
1.
Remove the rear door trim.
(Refer to Rear Door - "Rear Door Trim")
2.
Separate the mounting plug hole (A) from the rear door module.
...