Make this adjustment before you start driving and while the day/night lever is in the day position.
Pull the day/night lever toward you to reduce headlight glare from vehicles behind you during night driving.
Remember that you lose some rearview clarity in the night position.
Hyundai Tucson (LM) 2010-2015 Service Manual: Components and Components Location
Component Location
1. Auto light sensor2. Head lamps3. Lighting switch (Auto)4. Tail lamps5. SJB (Smart Junction Box)6. BCM (Body Control Module)
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Hyundai Tucson (LM) 2010-2015 Service Manual: Underdrive Brake Control Solenoid Valve(UD/B_VFS) Repair procedures
Inspection
1.
Turn ignition switch OFF.
2.
Disconnect the solenoid valve connector.
3.
Measure resistance between sensor signal terminal and sensor ground terminal.
4.
Check that the resistance is within the specification.
Removal
Replacing an on/off soleno ...