Press the A/C button to turn the air conditioning system on (indicator light will illuminate).
Press the button again to turn the air conditioning system off.
Hyundai Tucson (LM) 2010-2015 Owners Manual: Electric chromic mirror (ECM) with compass and HomeLink® system (if equipped)
Your vehicle may be equipped with a Gentex Automatic-Dimming Mirror with a Z-Nav™
Electronic Compass Display and an Integrated HomeLink® Wireless Control System.
During nighttime driving, this feature will automatically detect and reduce rearview
mirror glare while the compass indicates the ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Repair procedures
Removal
1.
Remove the liftgate trim in the trunk after removing the screws and clips.
(Refer to the BD group - "Liftgate")
2.
Remove the liftgate garnish (A) after disconnecting the connector and removing the nuts.
3.
Remove the back view camera (A) after loosening the screws (2EA).
...