This indicator light illuminates:
In this case, we recommend you to have your vehicle inspected by an authorized HYUNDAI dealer.
Hyundai Sonata LF 2014-2019 Service Manual: RCV Control Solenoid Valve Description and Operation
Description
RCV (Recirculation Valve) Control Solenoid Valve is installed
on the cooling pan motor top and operates the RCV actuator which
controls the by-pass passage of the turbo-charger compressor.
When the throttle valve is closed during engine running
[Tip-out], crash noise of the imp ...
Hyundai Sonata LF 2014-2019 Owners Manual: Engine Start/Stop Button
Whenever the front door is opened, the Engine Start/Stop button will illuminate
and will go off 30 seconds after the door is closed.
WARNING
To reduce risk of serious injury or death, NEVER allow children or any person
who is unfamiliar with the vehicle to touch the Engine Start/Stop button or re ...