Consult an authorized HYUNDAI dealer to replace most vehicle light bulbs. It is difficult to replace vehicle light bulbs because other parts of the vehicle must be removed before you can get to the bulb. This is especially true for removing the headlamp assembly to get to the bulb(s).
Removing/installing the headlamp assembly can result in damage to the vehicle.
Information
After heavy driving, rain or washing, headlamp and trunk lenses could appear frosty. This condition is caused by the temperature difference between the lamp inside and the outside temperature. This is similar to the condensation on your windows inside your vehicle during the rain and doesn’t indicate a problem with your vehicle. If the water leaks into the lamp bulb circuitry, have your vehicle checked by an authorized HYUNDAI dealer.
WARNING
Absorbent
This vehicle contains a dehumidifying dehumidifier inside the headlamp to mitigate the blurring of the headlamp due to moisture.
The desiccant is a consumable part and its performance may change depending on the usage time or environment.
If the inside of the headlamp continues to become cloudy due to moisture, we recommend that you consult an authorized HYUNDAI dealer.
The desiccant is a consumable part and cannot be guaranteed.
Fuse/Relay Panel Description
Headlamp, Position Lamp, Turn Signal Lamp and Side Marker Light Bulb ReplacementHyundai Sonata LF 2014-2019 Service Manual: DCT Control Module (TCM) Description and Operation
Description
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Function
The Transmission Control Module (TCM) is like the brain for
the Dual Clutch Transmission (DCT). It receives information from various
sensors for a wide range of transmission controls to provide an optimal
driving environment for the driver. The TCM is programmed ...
Hyundai Sonata LF 2014-2019 Service Manual: Gear Actuator Assembly Description and Operation
Description
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Components location : DCT (Dual Clutch Transmission)
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Function
The gear actuator comprises the shift motor and select solenoid.
Gear actuator shift motor and select solenoid receive signals from TCM to control the gear. ...