The electric rearview mirror automatically controls the glare from the headlights of the car behind you in nighttime or low light driving conditions.
When the engine is running, the glare is automatically controlled by the sensor mounted in the rearview mirror. The sensor detects the light level around the vehicle, and automatically adjusts to control the headlight glare from vehicles behind you.
Whenever the shift lever is placed in R (Reverse), the mirror will automatically go to the brightest setting to improve the driver’s view behind the vehicle.

To operate the electric rearview mirror:
CAUTION
When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing and damage the rearview mirror.
Day/Night rearview mirror (if equipped)
Blue Link® center (if equipped)Hyundai Tucson (LM) 2010-2015 Service Manual: Anchor Pretensioner Repair procedures
Removal
1.
Disconnect the battery negative cable, and wait for at least three minutes before beginning work.
2.
To remove the seat belt anchor pretensioner (C), keep on
pushing the lock pins (A) as arrow direction. And then remove the seat
belt after pushing the lock pin (B).
3.
Rem ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Floor mat anchor(s)
ALWAYS use the Floor Mat Anchors to attach the front floor mats to the vehicle.
The anchors on the front floor carpet keep the floor mats from sliding forward.
Your vehicle was manufactured with driver's side floor mat anchors designed to
securely hold the floor mat in place. To avoid any i ...