Immobilizer Indicator Light (without smart key)

This indicator light illuminates:
• When the vehicle detects the immobilizer in the key with the ignition switch in the ON position.
- At this time, you can start the engine.
- The indicator light goes off after starting the engine.
This indicator light blinks:
• When there is a malfunction with the immobilizer system.
In this case, have the vehicle inspected by an authorized HYUNDAI dealer.
Immobilizer Indicator Light (with smart key)

This indicator light illuminates for up to 30 seconds:
When the vehicle detects the smart key in the vehicle with the Engine Start/Stop button in the ACC or ON position.
- At this time, you can start the engine.
- The indicator light goes off after starting the engine.
This indicator light blinks for a few seconds:
When the smart key is not in the vehicle.
- At this time, you cannot start the engine.
This indicator light illuminates for 2 seconds and goes off:
If the smart key is in the vehicle and the Engine Start/Stop button is ON, but the vehicle cannot detect the smart key.
In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
This indicator light blinks:
• When there is a malfunction with the immobilizer system.
In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
Electronic Stability Control (ESC) OFF Indicator Light
Turn Signal, High Beam, Light ON Indicator LightsHyundai Elantra AD (2016-2020) Service Manual: Luggage Side Trim Components and Components Location
Component Location
1. Luggage side trim
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Hyundai Elantra AD (2016-2020) Service Manual: Variable Intake Solenoid (VIS) Valve Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the VIS valve connector.
3.
Measure resistance between VIS valve terminals 1 and 2.
Specification : Refer to "Specification"
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
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