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 Owners Manual: Battery
Jump starting can be dangerous if done incorrectly. Follow the jump starting
procedure in this section to avoid serious injury or damage to your vehicle. If
in doubt about how to properly jump start your vehicle, we strongly recommend that
you have a service technician or towing service do it ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Front Wiper Motor Components and Components Location
Component Location
1. Cap2. Nut3. Wiper arm & blade4. Retainer5. Cowl top cover6. Bolt7. Wiper motor & linkage assembly8. Wiper motor connector
...