Hyundai Sonata: Convenient features of your vehicle / Indicator Lights

Master Warning Light

This indicator light illuminates When there is a malfunction on the low washer, Smart cruise control, and so on. To identify the details of the warning, look at the LCD display. ...

Electronic Stability Control (ESC) 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 there ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description The charging system included a battery, an alternator with a built-in regulator, and the charging indicator light and wire. The Alternator has eight built-in diodes, each rectifying AC current to DC current. Therefore, DC current appears at alternator "B" terminal. In addition, the ...

Hyundai Sonata LF 2014-2019 Service Manual: Transmission Gear Oil Repair procedures
Inspection     • In principle, the transmission oil is maintenance-free, and no exchange is required. But it must be inspected and replenished every 4 years or 40,000 miles. 1. Park the vehicle on flat ground and turn off the engine. 2. Remove the under cover. ...