Curtain air bags are located along both sides of the roof rails above the front and rear doors.
They are designed to help protect the heads of the front seat occupants and the rear outboard seat occupants in certain side impact collisions.
The curtain air bags are designed to deploy during certain side impact collisions, depending on the crash severity.
The side and curtain air bags on both sides of the vehicle may deploy if a rollover or possible rollover is detected.
The curtain air bags are not designed to deploy in all side impact or rollover situations.
WARNING
To reduce the risk of serious injury or death from an inflating curtain air bags, take the following precautions:
Hyundai Elantra AD (2016-2020) Service Manual: Blower Resistor (Manual) Repair procedures
Inspection
1.
Measure the resistance between the terminals.
2.
The measured resistance is not within specification, the blower resistor must be replaced. (After removing the resistor)
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad center panel.
...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Operation and Leakage Check
Check all of the following items:
ComponentProcedureBrake Booster (A)Check brake operation by applying the brakes during a test
drive. If the brakes do not work properly, check the brake booster.
Replace the brake booster as an assembly if it does not work properl ...