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:
Hyundai Elantra AD (2016-2020) Owners Manual: Tires and Wheels
WARNING
Tire failure may cause loss of vehicle control resulting in an accident. To
reduce risk of SERIOUS INJURY or DEATH, take the following precautions:
Inspect your tires monthly for proper inflation as well as wear and damage.
The recommended cold tire pressure for your vehicle can be ...
Hyundai Elantra AD (2016-2020) Service Manual: Idler Repair procedures
Removal and Installation
1.
Remove the drive belt.
(Refer to Timing System - "Drive Belt")
2.
Remove the idler (A).
Tightening torque :
39.2 ~ 49.0N.m (4.0 ~ 5.0kgf.m, 28.9 ~ 36.2lb-ft)
3.
Install in the reverse order of removal.
Inspection
Check the idler for excessive oil le ...