Push the OFF button of the front to turn off the air climate control system. You can still operate the mode and air intake buttons as long as the ignition switch is in the ON position.
Hyundai Sonata LF 2014-2019 Service Manual: Fuel Tank Repair procedures
Removal
1.
Release the residual pressure in fuel line.
(Refer to the Fuel Delivery System - "Release Residual Pressure in Fuel Line")
2.
Remove the rear seat cushion.
(Refer to Body - "Rear Seat Assembly")
3.
Remove the fuel pump service cover (A) in the trunk.
4.
Disconnect the f ...
Hyundai Sonata LF 2014-2019 Service Manual: Floor Console Assembly Components and Components Location
Component Location
1. Floor console assembly
...