LIGHTING SYSTEM SYSTEM DESCRIPTION


  1. AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM


    • When the headlights are on, the automatic headlight beam level control system operates the headlight level actuator in accordance with movement of the vehicle.

    • On models with the air suspension system, the AFS ECU calculates changes in the vehicle posture based on the signals from the suspension control ECU and each ECU.

    • The ECU then controls the headlight level actuator based on this information, in order to change the headlight reflector angle.

  2. AFS


    • An intelligent AFS (Adaptive Front-lighting System) is used in order to ensure a wide headlight beam lighting area and realize excellent visibility during turns by moving the headlight beam.

    • The intelligent AFS of this vehicle uses medium-to-high speed control and low speed control. In the medium-to-high speed control, the system calculates the target lighting angle based on the tire angle and vehicle speed and changes the swivel angle of the headlight beams individually. During the low speed control, the system calculates the target lighting angle based on the steering angle and changes the swivel angle of the headlight beam on the side facing into the turn.

  3. AUTOMATIC HIGH BEAM SYSTEM (w/ Automatic High Beam System)


    1. General


      • The automatic high beam system enhances the illumination of the area to the front of the vehicle to improve visibility for the driver. It works by detecting light from the front using the camera built into the inner rear view mirror assembly and switching between the high beams and low beams automatically.

    2. Function of Main Components

      Component Outline
      Inner Rear View Mirror Assembly (Automatic High Beam Sensor) Determines when to switch between the high beams and low beams after identifying the lights of oncoming vehicles, preceding vehicles and other lights from the picture information of its camera sensor. Then, it sends high beam request signals to the AFS ECU via the LIN.
      AFS ECU Acts as the gateway between the inner rear view mirror assembly (automatic high beam sensor) which uses LIN communication and CAN communication. In addition, it stores Diagnostic Trouble Codes (DTCs) if an inner rear view mirror assembly (automatic high beam sensor) LIN communication malfunction occurs.
      Steering Angle Sensor Outputs the steering angle information to the AFS ECU.
      Skid Control ECU Outputs the information about the speed of the right front wheel. This information is used by the inner rear view mirror assembly (automatic high beam sensor) to control switching between the high beams and low beams of the automatic high beam system.
      Hybrid Vehicle Control ECU Outputs a signal to indicate that the shift lever is in R. Based on this signal, the inner rear view mirror assembly (automatic high beam sensor) turns the high beams off.
      Combination Meter Assembly

      Displays the automatic high beam indicator light when it receives illuminate request signals from the main body ECU.

      Tech Tips


      • If a malfunction occurs in this system, the automatic high beam indicator light turns off and the system check screen is displayed on the multi-information display in the combination meter in order to inform the driver.

      • The automatic high beam indicator light illuminates to inform the driver when the automatic high beam system is activated.

      • The automatic high beam indicator light may turn off when there is bad weather (thick fog, heavy rain, etc.), an abnormal condition with the front windshield (snow, ice, etc.), or an obstruction to the camera field of view (parking tag, etc.).
      Main Body ECU (Driver Side Junction Block Assembly)

      • Receives the headlight dimmer switch AUTO or HEAD position and dimmer switch high position signals from the combination ECU, receives the automatic light control sensor signal to determine the low beam headlight illumination condition, and receives the outer mirror switch (automatic high bean main switch) signal. This is used to put the automatic high beam system in standby mode.


      • Receives high beam drive request signals from the AFS ECU.


      • Performs illumination control for the automatic high beam system and stores Diagnostic Trouble Codes (DTCs) when the system malfunctions.
      Multiplex Network Front Light ECU (Front Controller) Receives high beam drive request signals from the main body ECU.
      Headlight Dimmer Switch Assembly Outputs a signal indicating the condition of the headlight dimmer switch.
      Outer Mirror Switch (Automatic High Beam Main Switch) Acts as the main switch to turn the automatic high beam system on and off.

    3. Basic Function


      1. Automatic High Beam System Activation Method


        • When all of the following conditions are met, the automatic high beam system is activated and the automatic high beam indicator light turns on:


          1. The power switch is on (IG).

          2. The headlight dimmer switch assembly is moved to the AUTO or HEAD position while in the high position, and the high beam headlight turns on.

          3. The outer mirror switch (automatic high beam main switch) is on (the system check screen is displayed on the multi-information display in the combination meter if the main switch is pressed when the above conditions are not met).

      2. High Beam Operation Conditions


        • When all of the following conditions are met, the low beams automatically change to the high beam after a short delay:


          • The vehicle speed is more than approximately 40 km/h (25 mph)*1, 30 km/h (19 mph)*2 or 34 km/h (21 mph)*3.

          • There are no oncoming vehicles that have their headlights on, no vehicles in front that have their taillights on, there are only a few street lights and the surrounding area is dark.


        • *1: for Middle East and Europe

        • *2: for Taiwan, Hong Kong and China

        • *3: except Middle East, Europe, Taiwan, Hong Kong and China

      3. Low Beam Operation Conditions


        • When any of the following conditions are met, the high beams automatically change to the low beams after a short delay:


          • The vehicle speed is less than 30 km/h (19 mph)*1, 25 km/h (16 mph)*2 or 27 km/h (17 mph)*3.

          • There are oncoming vehicles that have their headlights on, vehicles in front that have their taillights on, there are street lights and the surrounding area is bright.


        • *1: for Middle East and Europe

        • *2: for Taiwan, Hong Kong and China

        • *3: except Middle East, Europe, Taiwan, Hong Kong and China

      4. Cancellation Conditions


        • When any of the following conditions are met, the automatic high beam system will be canceled and the indicator light will turn off.


          • The power switch is turned off.

          • The headlight dimmer switch is turned to any position except the AUTO or HEAD position.

          • The dimmer switch is moved to the low position.

          • The outer mirror switch (automatic high beam main switch) is off.

      5. Additional Information


        • It is possible to manually switch between the high beams and low beams using either of the following operations:


          1. The outer mirror switch (automatic high beam main switch) is off. In this case, the high beams turn on according to the dimmer switch high position. To change to the low beams, move the dimmer switch to the low position.

          2. To change to the low beams, move the dimmer switch to the low position.


        • The automatic high beam system monitors the area in front of the vehicle using the camera built into the inner rear view mirror assembly and makes a judgment to change from the low beams to the high beams when the surrounding area is dark (there are no headlights from oncoming vehicles and no taillights from vehicles in front). High beam control limitations:


          1. When the surrounding area is not dark enough, the low beams will not change to the high beams even if the low beam headlights are turned on by the automatic light control system and the automatic high beam indicator light on the combination meter assembly illuminates. (The light level sufficient to turn the auto low beams on is not the same as the light level required to automatically change the low beams to the high beams.)

          2. When an oncoming vehicle suddenly appears at a sharp curve or a vehicle crosses the path of the vehicle, the high beams may not change to the low beams.

          3. When the fog lights of an oncoming vehicle are detected, the high beams may change to the low beams.

          4. The timing of the change between the high beams and low beams may differ depending on the brightness of headlights or fog lights from oncoming vehicles or the taillights of preceding vehicles.

          5. The timing of the change between the high beams and low beams may differ between normal conditions (good weather) and when driving on wet, frozen or snowy roads.

          6. The timing of the change between the high beams and low beams may differ depending on the number of occupants and amount of cargo present.

          7. Be aware that on some occasions, the high beams and low beams may change unexpectedly.


        • The camera built into the inner rear view mirror assembly continually monitors the light level in the area in front of the vehicle. There is a delay in switching the low beams to the high beams. Even when there is no ambient light, the low beams will not change to the high beams immediately. The delay will vary depend on the situation.

  4. ADAPTIVE HIGH BEAM SYSTEM (w/ Adaptive High Beam System)


    1. General


      • The adaptive high beam system uses the camera built into the inner rear view mirror assembly (adaptive high beam system sensor) to detect light in front of the vehicle and automatically switch between high beam, low beam, and variable shade beam (a high beam that has its range cutoff in order not to blind the vehicle in front and oncoming vehicles). Also, while the variable shade beam is operating, even if the relative position of the vehicle in front or oncoming vehicles changes, the camera detects the position and adjusts the cutoff range accordingly.

    2. Function of Main Components

      Component Outline
      AFS ECU Adjust the beams of the headlights according to the headlight dimmer switch signal and signals from the inner rear view mirror assembly (adaptive high beam system sensor).
      Inner Rear View Mirror Assembly (Adaptive High Beam System Sensor) Outputs a signal to the AFS ECU indicating the position of the vehicle in front.
      Headlight Shade ECU Operates the shade motor or LED for high beams according to signals from the AFS ECU.
      Headlight Swivel Motor Performs swiveling and leveling of the headlights according to signals from the AFS ECU.
      Combination Meter Assembly Displays the indicators in the meter upon receiving indicator illumination requests from the AFS ECU.
      Main Body ECU (Driver Side Junction Block Assembly) Controls turning on/off the low beams.
      Outer Mirror Switch (Adaptive High Beam System Main Switch) Outputs a signal indicating the condition of the adaptive high beam system main switch.
      Headlight Dimmer Switch Assembly Outputs a signal indicating the condition of the headlight dimmer switch.
      ECM Outputs a validation signal for the vehicle model.
      Hybrid Vehicle Control ECU Outputs a shift position R signal.
      Skid Control ECU Outputs a vehicle speed signal.
      Steering Angle Sensor Outputs a steering angle signal.
      Steering Control ECU Outputs a relative steering angle signal.

    3. Basic Function


      1. Adaptive High Beam System Activation Method


        • When all of the following conditions are met, the adaptive high beam system is activated and the adaptive high beam system indicator light turns on:


          1. The power switch is on (IG).

          2. The headlight dimmer switch assembly is moved to the AUTO or HEAD position while in the high position, and the high beam headlight turns on.

          3. The outer mirror switch (adaptive high beam system main switch) is on.

      2. High Beam Operation Conditions


        • When all of the following conditions are met, the low beams automatically change to the high beam after a short delay:


          • The vehicle speed is more than approximately 60 km/h (37 mph).

          • When there are no oncoming vehicles that have their headlights on and no vehicles in front that have their taillights on.

          • The surrounding area is dark and there are only a few street lights on the side of the road in front of the vehicle.

      3. Variable Shade Beam Operation Conditions


        • When all of the following conditions are met, the low beams automatically change to the variable shade beam after a short delay:


          • The vehicle speed is more than approximately 60 km/h (37 mph).

          • When there are oncoming vehicles that have their headlights on and vehicles in front that have their taillights on.

          • The surrounding area is dark and there are only a few street lights on the side of the road in front of the vehicle.

      4. Low Beam Operation Conditions


        • When any of the following conditions are met, the high beams automatically change to the low beams after a short delay:


          • The vehicle speed is less than 40 km/h (25 mph).

          • When there are oncoming vehicles that have their headlights on and vehicles in front that have their taillights on.

          • The surrounding area is bright and there are many street lights on the side of the road in front of the vehicle.

          • The vehicle in front is moving quickly and is being blinded by the bright lights of the vehicle.

      5. Cancellation Conditions


        • When any of the following conditions are met, the adaptive high beam system will be canceled and the indicator light will turn off.


          • The power switch is turned off.

          • The headlight dimmer switch is turned to any position except the AUTO or HEAD position.

          • The dimmer switch is moved to the low position.

          • The outer mirror switch (adaptive high beam system main switch) is off.

      6. Additional Information


        • It is possible to manually switch between the high beams and low beams using either of the following operations:


          • The outer mirror switch (adaptive high beam system main switch) is off. In this case, the high beams turn on according to the dimmer switch high position. To change to the low beams, move the dimmer switch to the low position.

          • To change to the low beams, move the dimmer switch to the low position.


        • The adaptive high beam system monitors the area in front of the vehicle using the camera built into the inner rear view mirror assembly and makes a judgment to change from the low beams to the high beams when the surrounding area is dark (when the headlights of the oncoming vehicle or taillights of the vehicle in front are within the operation area). High beam control limitations:


          • When the surrounding area is not dark enough, the low beams will not change to the high beams or variable shade beams even if the low beam headlights are turned on by the automatic light control system and the adaptive high beam indicator light on the combination meter assembly illuminates.

          • When an oncoming vehicle suddenly appears at a sharp curve or a vehicle crosses the path of the vehicle, the high beams or variable shade beams may not change to the low beams.

          • When the fog lights of an oncoming vehicle are detected, the high beams may change to the variable shade beams.

          • The speed at which the cutoff area changes and the point at which the system switches to the low beams may differ depending on the brightness of headlights or fog lights from oncoming vehicles or the taillights or rear fog lights of preceding vehicles.

          • The speed at which the cutoff area changes and the point at which the system switches to the low beams may differ between normal conditions (good weather) and when driving on wet, frozen or snowy roads.

          • The speed at which the cutoff area changes and the point at which the system switches to the low beams may differ depending on the number of occupants and amount of cargo present.

          • Be aware that on some occasions, the high beams and low beams may change unexpectedly.


        • The camera built into the inner rear view mirror assembly continually monitors the light level in the area in front of the vehicle. There is a delay in switching the low beams to the high beams. Even when there is no ambient light, the low beams will not change to the high beams immediately. The delay will vary depend on the situation.

  5. LANE CHANGE FLASHER SYSTEM


    • When moving the turn signal switch to the lane change position (it is not necessary to hold the switch) during a lane change, the turn signal light flashes a specified number of times.

    • While the turn signal light is flashing after the turn signal switch is moved to the lane change position (it is not necessary to hold the switch), the turn signal light turns off if the turn signal switch is moved in the opposite direction.

    • The main body ECU controls this system.

  6. ILLUMINATED ENTRY SYSTEM


    • The illuminated entry system of this vehicle controls the following lights: power switch illumination, door mirror foot light, clearance light, seat belt buckle switch illumination, door inside handle illumination, interior light (for front and rear), interior foot light, clock illumination and instrument panel illumination.

    • The main body ECU controls this system.

  7. INTERIOR LIGHT CONTROL

    The interior light control (front interior light, power switch illumination and clock illumination) consists primarily of the fade-in/fade-out function and timer illumination function.

  8. ADVANCED ILLUMINATION SYSTEM* CONTROL

    Tech Tips

    *: The term "instrument panel illumination" is used below.

    Instrument panel illumination control is performed when entering and leaving the vehicle.

  9. INTERIOR FOOT LIGHT CONTROL AND DOOR INSIDE HANDLE ILLUMINATION CONTROL

    The interior foot light control and door inside handle illumination control consist primarily of the fade-in/fade-out function and timer illumination function.

  10. DOOR MIRROR FOOT LIGHT CONTROL

    The door mirror foot light control consists primarily of the fade-in/fade-out function and timer illumination function.

  11. CLEARANCE LIGHT CONTROL

    Clearance light control is performed for the clearance lights (parking lights, taillights and license plate lights) when the doors are unlocked and the headlight dimmer switch is in the AUTO position.

  12. SEAT BELT BUCKLE SWITCH ILLUMINATION CONTROL

    The seat belt buckle switch illumination control consists primarily of the fade-in/fade-out function and timer illumination function.

  13. BATTERY SAVING CONTROL

    When the following 2 conditions have been met, battery saving control turns off the lights illuminated by the illuminated entry controls.


    • The power switch is turned off.

    • There is no change in the condition of the doors for 20 minutes.

  14. AUTOMATIC LIGHT CONTROL SYSTEM


    • When the headlight dimmer switch is in the AUTO position, the automatic light control system detects ambient light levels and controls the headlights and taillights (parking lights, taillights and license plate lights).

    • Ambient light levels are detected by the light control sensor that is integrated into the air conditioning system's front solar sensor.

    • The main body ECU controls this system.

  15. DAYTIME RUNNING LIGHT SYSTEM


    1. The daytime running light system is designed to automatically illuminate the headlights (high-intensity parking lights), during the daytime to make the vehicle more visible to other vehicles.


      • The multiplex network front light ECU (front controller) controls this system.


      • This system is enabled when the conditions below are met:


        • The power switch is on (IG).


        • READY condition is received.

        • Parking brake is released.

        • Headlight dimmer switch is in the off, TAIL or AUTO position (and the low beam headlights are not turned on via the automatic light control system).

  16. LIGHT AUTO TURN OFF SYSTEM (w/ Light Auto Turn-off Delay Function)

    The light auto turn off system is used to prevent the exterior lights from being accidentally left on (headlights, taillights, parking lights and license plate lights).

    This system has the following functions.

    Function Outline
    Delay Function

    The exterior lights automatically turn off after 30 seconds when all of the following conditions are met:


    • The low beam headlights or taillights are on (headlight dimmer switch is in the AUTO position).

    • The power switch is turned from on (IG) to off.

    • All doors (including luggage compartment door) are closed after driver door is opened.
    Buzzer Function

    The exterior lights do not turn off and the buzzer sounds when all of the following conditions are met:


    • The low beam headlights or taillights are on (headlight dimmer switch is except AUTO position).

    • The power switch is turned from on (IG) to off.

    • All doors (including luggage compartment door) are closed after driver door is opened.

  17. LIGHT AUTO TURN OFF SYSTEM (w/ Follow Me Home System)

    The light auto turn off system is used to prevent the driver from leaving the vehicle with the headlights, front fog lights, rear fog lights*, parking lights, taillights or license plate lights on.

    This system has the following functions.

    Switch Condition Outline
    Headlight dimmer switch in AUTO position While the lights (headlights, front fog lights, rear fog lights*, parking lights, taillights or license plate lights) are turned on, this control automatically turns them off when the power switch is turned from on (IG) to off.
    Headlight dimmer switch in TAIL or HEAD position

    While the lights (headlights, front fog lights, rear fog lights*, parking lights, taillights or license plate lights) are turned on, this control automatically turns off only headlights and the front fog lights when the power switch is turned from on (IG) to off.

    The buzzer sounds when the driver door is opened while in the state described above.

    • *: w/ Rear Fog Light

  18. LIGHT AUTO TURN-OFF SYSTEM (w/o Light Auto Turn-off Delay Function, w/o Follow Me Home System)


    • *: w/ Rear Fog Light

    The light auto turn-off system is used to prevent the driver from leaving the vehicle with the headlights, front fog lights, rear fog lights*, parking lights, taillights or license plate lights on. When all of the following conditions are met, the exterior lights turn off:


    • The power switch is turned from on (IG) to off.

    • The headlights, front fog lights, rear fog lights*, parking lights, taillights, or license plate lights are on.


    • The driver door is opened.

  19. FOLLOW ME HOME SYSTEM (w/ Follow Me Home System)


    1. The follow me home system is designed to illuminate the low beam headlights, parking lights, taillights or license plate lights and for certain period after the vehicle is parked.


      1. This system is controlled by the main body ECU.

      2. This system is enabled when the following conditions are met:


        • The power switch is off.

        • The headlight dimmer switch is in the off or AUTO position.

        • The headlight dimmer switch is pulled to flash headlights once.