The SRS is virtually maintenancefree and there are no parts you can safely service by yourself. If the SRS air bag warning light does not illuminate when the ignition switch is in the ON position, or continuously remains on, have your vehicle immediately inspected by an authorized HYUNDAI dealer.
Any work on the SRS system, such as removing, installing, repairing, or any work on the steering wheel, the front passenger's panel, front seats and roof rails must be performed by an authorized HYUNDAI dealer. Improper handling of the SRS system may result in serious personal injury.
WARNING
To reduce the risk of serious injury or death, take the following precautions:
Air bag non-inflation conditions
Additional Safety PrecautionsHyundai Elantra AD (2016-2020) Service Manual: Parking Brake Switch Repair procedures
Removal
1.
Disconnect the negative (-) battery cable.
2.
Release the parking brake.
3.
Remove the floor console assembly.
(Refer to Body - "Floor console")
4.
Disconnect the connector (A) of parking brake switch.
5.
Loosen the screw and then remove the parking brake switch.
...
Hyundai Elantra AD (2016-2020) Service Manual: Power Door Mirror Switch Repair procedures
Inspection
[Power Window Switch]
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver door trim.
(Refer to Body - "Front Door Trim")
3.
Disconnect the power mirror switch connector from the door trim.
4.
Check for continuity between the terminals in each switch pos ...