Blade Inspection

Contamination of either the windshield or the wiper blades with foreign matter can reduce the effectiveness of the windshield wiper functionality. Common sources of contamination are insects, tree sap, and hot wax treatments used by some commercial car washes. If the blades are not wiping properly, clean both the window and the blades with a clean cloth dampened with washer fluid.
NOTICE
To prevent damage to the wiper blades, arms or other components, do not:
Information
Commercial hot waxes applied by automatic car washes have been known to make the windshield difficult to clean.
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 and failure.

1. Raise the wiper arm.
CAUTION
Do not allow the wiper arm to fall against the windshield, since it may chip or crack the windshield.

2. Lift up the wiper blade clip. Then pull down the blade assembly and remove it.

3. Install the new blade assembly in the reverse order of removal.
4. Return the wiper arm on the windshield.
CAUTION
To prevent damage to the wiper arms or other components, have an authorized HYUNDAI dealer replace the wiper blade.
Climate Control Air FilterHyundai Elantra AD (2016-2020) Service Manual: Inhibitor Switch Repair procedures
Inspection
Inspection flow of the inhibitor switch
Items to check
1.
Inspect DTC code.
2.
Inspect whether N setting matches.
A.
Adjust N setting (refer to automatic transmission system - "inhibitor switch")
3.
Inspect shift cable separation.
A.
Adjust shift cable separation ( ...
Hyundai Elantra AD (2016-2020) Service Manual: Input 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
...