Hyundai Sonata: Indicator Lights / 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 properly while the ignition switch or the Engine Start/ Stop button is ACC or ON.

- 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 can not start the engine.

This indicator light illuminates for 2 seconds and goes off:

When the vehicle can not detect the smart key which is in the vehicle while the ignition switch or the Engine Start/Stop button is ON.

In this case, have your vehicle inspected by an authorized HYUNDAI dealer.

This indicator light blinks:

Immobilizer Indicator Light (Without Smart Key)
This indicator light illuminates: When the vehicle detects the immobilizer in your key properly while the ignition switch is ON. - At this time, you can start the engine. - The indicator light goes ...

Turn Signal Indicator Light
This indicator light blinks: When you turn the turn signal light on. If any of the following occurs, there may be a malfunction with the turn signal system. In this case, have your vehicle inspected ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Smart Key Unit Repair procedures
Removal Smart Key Unit 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box. (Refer to Body - "Glove Box Upper Cover Assembly") 3. Remove the smart key unit (B) after disconnecting the connectors (A) and loosening the bolt and nut. Interior 1 Antenna   ...

Hyundai Sonata LF 2014-2019 Service Manual: Front Fog Lamps Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the front bumper. (Refer to Body - "Front Bumper Cover") 3. Disconnect the front fog lamp connector (A). 4. Remove the front fog lamp assembly (A) after loosening the mounting nut. Installation 1. Install the fr ...

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