Hyundai Sonata: Indicator Lights / 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 by an authorized HYUNDAI dealer.

- The indicator light does not blink but illuminates.
- The indicator light blinks more rapidly.
- The indicator light does not illuminate at all.

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 ...

High Beam Indicator Light
This indicator light illuminates: When the headlights are on and in the high beam position. When the turn signal lever is pulled into the Flash-to-Pass position. ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: DCT Control Module (TCM) Description and Operation
Description • Function The Transmission Control Module (TCM) is like the brain for the Dual Clutch Transmission (DCT). It receives information from various sensors for a wide range of transmission controls to provide an optimal driving environment for the driver. The TCM is programmed ...

Hyundai Sonata LF 2014-2019 Service Manual: Heater & A/C Control Unit (DATC) Repair procedures
Self Diagnosis 1. Self-diagnosis process.     • When operating the self-diagnostics, the below fault (self-diagnostics code) will blink at 0.5 seconds interval on the temperature display settings (driver's side only) and the remaining symbols are OFF . 2. Fa ...

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