Filter Inspection
The climate control air filter should be replaced according to the Maintenance Schedule. If the vehicle is operated in severely air-polluted cities or on dusty rough roads for a long period, it should be inspected more frequently and replaced earlier. When you replace the climate control air filter, replace it performing the following procedure, and be careful to avoid damaging other components.

1. With the glove box open, remove the stoppers on both sides to allow the glove box to hang freely on the hinges.

2. Remove the support rod (1).

3. Press and hold the lock (1) on both sides of the cover.
4. Pull out (2) the cover.

5. Replace the climate control air filter.
6. Reassemble in the reverse order of disassembly.
NOTICE
Install a new climate control air filter in the correct direction with the arrow symbol (↓) facing downwards, to prevent noise and reduce effectiveness.
Air Cleaner
Wiper BladesHyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Adjustment
1.
Place the car on a flat surface and check whether the body and trunk lid are well-aligned.
2.
After loosening the trunk lid hinge (A) mounting bolt, adjust the trunk lid by moving it up and down or from side to side.
3.
Adjust the gap between the trunk lid and body by turni ...
Hyundai Elantra AD (2016-2020) Service Manual: ABS Control Module Repair procedures
Removal
1.
Turn the ignition switch OFF and then disconnect the negative (-) battery cable.
2.
Pull up the lock of the HECU connector (A) , then disconnect the connector.
3.
Remove the brake fluid from the master cylinder reservoir with a syringe.
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Be sure to ...