LIGHTING SYSTEM


  1. OUTLINE


    1. Exterior Light


      1. The exterior lights consist of the following:

        A000MLKE02
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        *A Except F SPORT *B F SPORT
        *C Models without Lexus Night View and Pre-crash Safety System *D Models with Lexus Night View and Pre-crash Safety System
        *1 Side Turn Signal Light Assembly RH *2 Headlight Assembly RH
        *3 Fog Light Assembly RH *4 Fog Light Assembly LH
        *5 Headlight Assembly LH *6 Side Turn Signal Light Assembly LH
        *7 Lo Beam/Hi Beam *8 Hi Beam
        *9 Near-infrared Projector *10 Clearance Light/Daytime Running Light
        *11 Front Turn Signal Light *12 Lo Beam
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        *A Models with Rear Fog Light *B Models without Rear Fog Light
        *1 Rear Light Assembly LH *2 Rear Combination Light Assembly LH
        *3 Rear Reflex Reflector LH *4 License Plate Light Assembly
        *5 Rear Light Assembly RH *6 Rear Reflex Reflector RH
        *7 Rear Combination Light Assembly RH *8 Center Stop Light Assembly
        *9 Rear Fog Light *10 Taillight
        *11 Taillight and Stop Light *12 Back-up Light
        *13 Rear Turn Signal Light - -

    2. Light Emitting Diode (LED) Headlight System


      1. The LED headlight system use LEDs as its light source. This system consists of LEDs and LED driver modules.

      2. The fail-safe function is provided in case that problem occurs in the headlight system.

    3. Near-infrared Projector (Models with Lexus Night View and Pre-crash Safety System)


      1. A near-infrared projector is built into the headlight assembly for the Lexus night view and pre-crash safety system. A halogen bulb is used as a light source for the near-infrared projector.

    4. Automatic Headlight Beam Level Control System


      1. When the hybrid system and headlights are on, the automatic headlight beam level control system operates the headlight swivel motors in accordance with movement of the vehicle.

    5. Automatic Light Control System


      1. When the light control switch is in the AUTO position, the automatic light control sensor detects the ambient light level and automatically turns the headlights, taillights, clearance lights and license plate lights on or off accordingly.

      2. This system is controlled by the main body ECU (driver side junction block).

    6. Light Auto Turn-off System


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

    7. Door Mirror Foot Light System


      1. The door mirror foot light system operates the door mirror lights to ensure visibility when approaching or leaving the vehicle at night.

    8. Intelligent Adaptive Front-lighting System (AFS)


      1. An intelligent AFS is used in order to ensure a wide lo beam lighting area and provide excellent visibility during turns by moving the lo beam.

      2. The intelligent AFS performs 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 steering angle and vehicle speed and changes the swivel angle of the low-beam headlights 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 low-beam headlight on the side facing into the turn.

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        *A Models with Intelligent AFS *B Models without Intelligent AFS
        *a Medium-to-high Speed Control *b Low Speed Control
        *c Lighting Area - -

    9. Automatic High Beam (AHB) System


      1. The Automatic High Beam (AHB) system detects lights in front of the vehicle and automatically changes between hi beams and lo beams to support the driver during night driving.

    10. Adaptive High-beam System (AHS) (Models with AHS System)


      1. The Adaptive High-beam System (AHS) is provided.

      2. The Adaptive High-beam System (AHS) detects lights in front of the vehicle and automatically changes the lighting area to support the driver during night driving.

    11. Daytime Running Light System


      1. The LED driver module built into the headlight assembly controls the switching between the daytime running light and the clearance light via signals from the main body ECU (driver side junction block).

    12. Lane Change Flasher System


      1. The lane change flasher system flashes the turn signal light a certain number of times when the turn signal switch (headlight dimmer switch assembly) is moved to the lane change position. By using the lane change flasher system when changing lanes, it is no longer necessary to hold the turn signal switch in the lane change position.

    13. Emergency Brake Signal


      1. The stop lights flash automatically in the case of emergency braking to alert following drivers, thus helping to reduce rear-end accidents.

    14. Illumination System


      1. The illumination system operates the clearance lights, taillights and license plate lights in conjunction with the locking and unlocking of the doors, ensuring nighttime usability.

  2. SPECIFICATION

    Light Type Wattage
    Headlight Assembly Lo Beam LED x 2 50/38
    High/Lo Beam LED x 2
    Hi Beam*1 LED x 1 15
    Near-infrared Projector*2 H9 65
    Clearance Light/Daytime Running Light LED x 2 1.3/29
    Front Turn Signal Light LED x 12 20
    Front Fog Lights (except F SPORT) LED x 4 17
    Front Fog Lights (F SPORT) LED x 1 15
    Side Turn Signal Lights LED x 3 0.3
    Rear Combination Light Assembly Taillight/Stop Light

    LED x 21

    (Taillight: LED x 9)

    		 5.7/9.4
    Rear Turn Signal Light LED x 8 22
    Rear Light Assembly Taillight/Stop Light*3 LED x 3 0.2/0.2
    Taillight*4 LED x 3 0.2
    Back-up Light LED x 3 1.8
    Rear Fog Light*4 Bulb 21
    Center Stop Light Assembly LED x 24 1.2
    License Plate Lights LED x 1 0.6

    • *1: Models without Lexus night view and pre-crash safety system

    • *2: Models with Lexus night view and pre-crash safety system

    • *3: Models without rear fog light

    • *4: Models with rear fog light

  3. PRECAUTION


    1. Automatic High Beam (AHB) System


      1. The Automatic High Beam (AHB) system is a system that helps ensure visibility by automatically switching the hi beams on and off.

      2. However, due to control limitations of the Automatic High Beam (AHB) system, it may be necessary to manually switch hi beams on and off. When driving, for safety reasons, make sure to switch the hi beams and lo beams manually in accordance with the driving conditions.

      3. Under the following conditions, the Automatic High Beam (AHB) system might not detect other vehicles or lights correctly, or the hi beams might cause glare or flash pedestrians or the occupants of other vehicles. Manual operation should be considered.

        Factor Factor
        Weather/Climate When driving in bad weather (rain, snow, fog, sandstorms, etc.).
        Windshield Glass

        • When the windshield glass is not clear (ice, snow or frost on the glass).

        • When the windshield glass is dirty (sand, mud, water stains or bugs on the glass).

        • When the windshield glass is cracked.

        • When the windshield glass is fogged up.

        • When the windshield glass has a film attached.

        • When an object on the instrument panel reflects off of the windshield glass.

        • When any other abnormal conditions exist with the windshield glass.
        Automatic High Beam Sensor (Inner Rear View Mirror Assembly)

        • When a parking tag, magnifying lens or other accessory is mounted on the inner rear view mirror assembly.

        • When the inner rear view mirror assembly or its built-in camera is deformed.

        • When the automatic high beam sensor in the inner rear view mirror assembly is dirty.

        • When any other abnormal conditions exist with the inner rear view mirror assembly or its built-in automatic high beam sensor.
        Nearby Vehicles or Lights

        • When lights similar to headlights or taillights are in the vicinity of the vehicle.

        • When a nearby vehicle has no lights or its lights are off.

        • When a vehicle in front has misaligned lights or its lights are changing color.

        • When a vehicle in front has extremely dirty headlights or taillights.
        Road Conditions

        • When driving in an area where the conditions often change between bright and dark.

        • When driving on a road with many uphill and downhill slopes.

        • When driving on a winding road or around a sharp curve.

        • When driving on a bumpy road (cobblestone pavement, gravel road, rough unpaved road, etc.).

        • When highly reflective objects are in front of the vehicle (mirrors, road signs, etc.).
        Vehicle Conditions

        • When the headlights are damaged, deformed or dirty.

        • When the vehicle posture is abnormal due to flat tire (or posture has changed due to the vehicle being fully loaded, a trailer being towed etc.).

        • When the vehicle has other malfunctions or if the vehicle has been modified.
        Automatic High Beam (AHB) System

        Malfunction:


        • When the automatic high beam indicator light on the combination meter assembly is blinking.

        Others:


        • When the Automatic High Beam (AHB) system does not seem to be changing between the hi beams and lo beams properly.

        • When the Automatic High Beam (AHB) system is frequently changing between the hi beams and lo beams.

        • When the glare from the hi beams would disturb pedestrians or the drivers of other vehicles.

    2. Adaptive High-beam System (AHS)


      1. The Adaptive High-beam System (AHS) is a system that helps ensure visibility by automatically switching between the lo beam, hi beam and variable shade beam.

      2. However, due to control limitations of the Adaptive High-beam System (AHS), it may be necessary to manually switch hi beams on and off. When driving, for safety reasons, make sure to switch the high beams and lo beams manually in accordance with the driving conditions.

      3. Under the following conditions, the Adaptive High-beam System (AHS) might not detect other vehicles or lights correctly. Manual operation should be considered.

        Factor Factor
        Weather/Climate When driving in bad weather (rain, snow, fog, sandstorms, etc.).
        Windshield Glass

        • When the temperature in the cabin is high.

        • When the windshield glass is not clear (ice, snow or frost on the glass).

        • When the windshield glass is dirty (sand, mud, water stains or bugs on the glass).

        • When the windshield glass is cracked.

        • When the windshield glass is fogged up.

        • When the windshield glass has a film attached.

        • When an object on the instrument panel reflects off of the windshield glass.

        • When any other abnormal conditions exist with the windshield glass.
        Adaptive High-beam Sensor (Inner Rear View Mirror Assembly)

        • When a parking tag, magnifying lens or other accessory is mounted on the inner rear view mirror assembly.

        • When the inner rear view mirror assembly or its built-in camera is deformed.

        • When the adaptive high-beam sensor in the inner rear view mirror assembly is dirty.

        • When any other abnormal conditions exist with the inner rear view mirror assembly or its built-in adaptive high-beam sensor.
        Nearby Vehicles or Lights

        • When lights similar to headlights or taillights are in the vicinity of the vehicle.

        • When a nearby vehicle has no lights or its lights are off.

        • When a vehicle in front has misaligned lights, or its lights are changing color.

        • When a vehicle in front has extremely dirty headlights or taillights.
        Road Conditions

        • When driving in an area where the conditions often change between bright and dark.

        • When driving on a road with many uphill and downhill slopes.

        • When driving on a winding road or around a sharp curve.

        • When highly reflective objects are in front of the vehicle (mirrors, road signs, etc.).
        Vehicle Conditions

        • When the headlights are damaged, deformed or dirty.

        • When the vehicle posture is abnormal due to a flat tire (or posture has changed due to the vehicle being fully loaded, a trailer being towed etc.).

        • When the vehicle has other malfunctions or if the vehicle has been modified.
        Adaptive High-beam System (AHS)

        Malfunction:


        • When the adaptive high-beam indicator light on the combination meter assembly is blinking.

        • When the indicator light of the inner rear view mirror assembly is blinking.

        Others:


        • When the Adaptive High-beam System (AHS) does not seem to be changing between the hi beams and lo beams properly.

        • When the headlight mode switching timing of the Adaptive High-beam System (AHS) and the changes in the variable shade areas seem abnormal or change frequently.

        • When the glare from the hi beams would disturb pedestrians or the drivers of other vehicles.