Hyundai Sonata: Warning Lights / Automatic Emergency Braking (AEB) Warning light
This warning light illuminates :
- When the AEB system is turned off.
- When the radar or its cover is stained. Remove the stains with a soft cloth.
- When there is a malfunction with AEB. In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
Low Tire Pressure Warning Light
This warning 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 one or ...
Door Ajar & Trunk Open Warning Lights
Door Ajar Warning Light
This warning light illuminates:
When a door is not closed securely.
Trunk Open Warning Light
This warning light illuminates:
When the trunk lid is not closed securely. ...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Troubleshooting
Trouble Symptom Charts
Trouble Symptom 1
Trouble Symptom 2
Trouble symptomProbable causeRemedyThe set vehicle speed varies greatly upward or downward"Surging" (repeated alternating acceleration and deceleration) occurs after settingMalfunction of the vehicle speed sensor circuitRepair the ...
Hyundai Sonata LF 2014-2019 Service Manual: ETC (Electronic Throttle Control) System Troubleshooting
Fail-Safe Mode
ItemFail-SafeETC MotorThrottle valve stuck at 7°TPSTPS 1 faultECM looks at TPS2TPS 2 faultECM looks at TPS1TPS 1,2 faultThrottle valve stuck at 7°APSAPS 1 faultECM looks at APS 2APS 2 faultECM looks at APS 1APS 1,2 faultEngine idle state
When throttle v ...
