Hyundai Sonata: Indicator Lights / 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 off after starting the engine.

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
This indicator light illuminates: Once you set the ignition switch or the Engine Start/Stop button to the ON position. - It illuminates for approximately 3 seconds and then goes off. When you d ...

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 th ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Drive Belt Repair procedures
Removal 1. Disconnect the battery negative terminal. 2. Loosen the alternator tension adjusting bolt (A) to loosen tension. 3. Remove the drive belt (A). Inspection Drive Belt Inspection Visually check the belt for excessive wear, frayed cords etc. If any defect has been found, rep ...

Hyundai Sonata LF 2014-2019 Owners Manual: Low Tire Pressure Position and Tire Pressure Telltale
When the tire pressure monitoring system warning indicators are illuminated and warning message displayed on the cluster LCD display, one or more of your tires is significantly under-inflated. The Low Tire Pressure Position Telltale will indicate which tire is significantly underinflated by illu ...

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