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.
Hyundai Elantra AD (2016-2020) Service Manual: Engine Coolant Temperature Sensor (ECTS) Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the ECTS connector.
3.
Remove the ECTS.
4.
After immersing the thermistor of the sensor into engine coolant, measure resistance between the ECTS terminals 1 and 3.
5.
Check that the resistance is within the specification.
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Hyundai Elantra AD (2016-2020) Owners Manual: Rocking the Vehicle
If it is necessary to rock the vehicle to free it from snow, sand, or mud, first
turn the steering wheel right and left to clear the area around your front wheels.
Then, shift back and forth between R (Reverse) and a forward gear.
Try to avoid spinning the wheels, and do not race the engine.
T ...