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 Blades. Blade ReplacementHyundai Elantra AD (2016-2020) Owners Manual: Pre-tensioner seat belt (Driver and front passenger)
Your vehicle is equipped with driver's and front passenger's Pre-tensioner Seat
Belts (Retractor Pretensioner and Emergency Fastening Device System). The purpose
of the pre-tensioner is to make sure the seat belts fit tightly against the occupant's
body in certain frontal collisi ...
Hyundai Elantra AD (2016-2020) Service Manual: Driver Airbag (DAB) Module and Clock Spring Repair procedures
Removal
1.
Disconnect the battery negative cable and wait for at least three minutes before beginning work.
2.
Remove the driver airbag module by putting in a flat tool (O5mm) into the guide hole and then press the spring.
3.
Release the connector locking pin, then disconnect the driver ...