This warning light indicates the fuel tank is nearly empty. When it comes on, you should add fuel as soon as possible. Driving with the fuel level warning light on or with the fuel level below “E” can cause the engine to misfire and damage the catalytic converter.
Hyundai Tucson (LM) 2010-2015 Service Manual: Power Window Switch Repair procedures
Inspection
Main Power Window Switch Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front door trim and power window switch.
(Refer to the BD group - "Front door")
3.
Check for continuity between the terminals in each switch
position according to the table. ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Cowl Top Cover Repair procedures
Replacement
1.
Remove the cover and nut, then remove the wiper arm (A).
2.
Detach the clips, then remove the cowl top cover (B).
3.
Install in the reverse order of removal.
•
Replace any damage clips.
...