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: High Mounted Stop Lamp Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the rear package tray trim.
(Refer to Body - "Rear Package Tray Trim")
3.
Remove the high mounted stop lamp after disengaging the mounting clip.
Installation
1.
Install the rear high mounted stop lamp.
2.
Instal ...
Hyundai Sonata LF 2014-2019 Service Manual: Crash Pad Side Cover Components and Components Location
Component Location
[LH]
1. Crash pad side cover [LH]
[RH]
1. Crash pad side cover [RH]
...