This warning light illuminates:
NOTICE
- Malfunction Indicator Lamp (MIL)
Driving with the Malfunction Indicator Lamp (MIL) on may cause damage to the emission control systems which could affect drivability and/or fuel economy.
NOTICE
If the Malfunction Indicator Lamp (MIL) illuminates, potential catalytic converter damage is possible which could result in loss of engine power.
In this case, have your vehicle inspected by an authorized HYUNDAI dealer.
Hyundai Sonata LF 2014-2019 Service Manual: AVN(Audio Video Navigation) head unit Components and Components Location
Components
Connector Pin Information
NoConnector AConnector BConnector C1-Multmedia-CAN (High)Chassis-CAN (Low)2--Chassis-CAN (High)3---4-Steering wheel remote controller-5SPDIF Shield GND--6SPDIF (+)MTS keypad signal-7---8Illumination (+)AUX R input-9-Multimedia jack (GND)- 10-MIC (+)-11-Batt ...
Hyundai Sonata LF 2014-2019 Service Manual: Oil Level Gauge & Pipe Repair procedures
Removal and Installation
1.
Remove the oil lever gauge (A).
Tightening torque:
9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)
2.
Install in the reverse order of removal. ...