Hyundai Tucson: Auto Head Lamp Leveling Device

Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual / Body Electrical System / Auto Head Lamp Leveling Device

Component Location

  1. Head lamp leveling actuator (Inside head lamps)
  2. Head lamp leveling switch


  1. Disconnect the negative (-) battery terminal.
  2. Remove the crash pad lower panel.

    (Refer to Body - "Crash Pad Lower Panel")

  3. Loosen the mounting screw and remove the crash pad garnish LH (A).

  1. Loosen the mounting screws and remove the crash pad lower switch assembly (A).

  1. Disconnect the crash pad lower switch connector (A).



  1. Instahh the crash pad lower switch
  2. Install the crash pad garnish LH.
  3. Install the crash pad lower panel.
  4. Connect the negative (-) terminal


     Button Engine Start System

    Description The System offers the following features : Changing the state of engine ignition and power by using the start button. Controlling external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical

     Operation for each function of button starting

    Electric power ON / Ignition ON The electric power state changes within the range of OFF ->ACC->IGN->OFF by pressing the button without stepping on the brake (Or with stepping on the brake) inside the car with FOB key (However.

     IBU (Integrated Body Control Unit (IBU)

    The IBU manages all function related to : -"Start Stop Button (SSB) monitoring", "Immobilizer communication" (with Engine Management System unit for immobilizer release) Authentication server" (Validity of Tran


     Fuel Tank

    Component Location Fuel tank Canister Vapor hose Ventilaton hose Fuel filler hose Fuel tank air filter Leveling hose Fuel Level Sender (FLS) Fuel pump Fuel filter Fuel pressure regulator Fuel Perssure Sensor (FPS) High

     GPF Regeneration- Description

    Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, th