This warning light illuminates :
Hyundai Sonata LF 2014-2019 Owners Manual: Fuel Filler Door
Opening the fuel filler door
The fuel filler door must be opened from inside the vehicle by pushing the fuel
filler door opener button.
1. Turn the engine off.
2. Push the fuel filler door opener button.
3. Pull the fuel filler door (1) out to fully open.
4. To remove the fuel tank cap (2), turn ...
Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description
Body Control Module (BCM) Function
NoItemDescription1Washer Linked Wiper
-
If the washer switch is pressed ON for 0.06~0.2 second with
the vehicle mode in IGN2, the wiper relay is turned ON 0.3±0.1 second
after washer switch ON, and then the wiper relay is turned OFF 0.7Â ...