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: Mode Control Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defrost mode when connecting 12V to terminal 3 and grounding terminal 4.
Verify that the mode control actuator operates to the vent mod ...
Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Troubleshooting
Trouble SymptomProbable CauseRemedyExcessive play in steeringLoose U-joint boltRetighten or replace as necessaryLoose yoke plugRetightenLoose steering gear mounting boltsRetightenLoose or worn tie rod endRetighten or replace as necessarySteering wheel does not return properlyExc ...
