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: Master Cylinder Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air cleaner assembly (A). 3. Disconnect the brake fluid level switch connector (A). 4. Remove the brake fluid from the master cylinder reservoir with a syringe.     †...

Hyundai Sonata LF 2014-2019 Service Manual: Specifications
Specifications ItemsSpecificationsRated voltageDC 12VOperating voltageDC 9 ~ 16VOperating temperature-22°F ~ 167°F (-30°C ~ 75°C)Dark currentSMK : 3mA / Keyless : 3.5mA ...

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