PRE-CRASH SAFETY SYSTEM


  1. OUTLINE


    1. Lexus Safety System+


      1. Preventive safety package "Lexus Safety System+" has been adopted to support the safety drive.

      2. System that are included in the "Lexus Safety System+" are as follows:


        • Pre-crash Safety System (PCS)

        • Dynamic Radar Cruise Control System Click here

        • Lane Departure Alert with steering control (LDA) Click here

        • Road Sign Assist (RSA) Click here

        • Automatic High Beam (AHB) Click here

    2. Pre-Crash Safety System (PCS)


      1. Pre-crash safety system helps to lessen the damage sustained in a collision by operating in unison with warning device and brake systems.

      2. The pre-crash safety system detects the vehicle in front of the vehicle based on both data from a forward recognition camera and millimeter wave radar sensor.

      3. If the pre-crash safety system determines that the possibility of a collision is high, pre-crash warning control and pre-crash brake assist control is performed, and if a collision is imminent, pre-crash braking control* will be performed to help avoid and reduce the impact of the collision.

        *: Except destination package for Taiwan

        A01VYJAE04

  2. PRECAUTION


    1. Lexus Safety System+


      1. The Lexus Safety System+, is designed to operate under the assumption that the driver will drive safely, and is designed to help reduce the impact to the occupants and the vehicle in the case of a collision or assist the driver in normal driving conditions.

      2. As there is a limit to the degree of recognition accuracy and control performance that this system can provide, do not overly rely on this system. The driver is always responsible for paying attention to the vehicle's surroundings and driving safely.

    2. Limitations of the pre-crash safety system


      1. The driver is solely responsible for safe driving. Always drive safely, taking care to observe your surroundings.

        Do not use the pre-crash safety system instead of normal braking operations under any circumstances. This system will not prevent collisions or lessen damage or injuries in every situation. Do not overly rely on this system. Failure to do so may lead to an accident, resulting in death or serious injury.

      2. Although this system is designed to help avoid and reduce the impact of a collision, its effectiveness may change according to various conditions, therefore the system may not always be able to achieve the same level of performance.

        Read the following conditions carefully. Do not overly rely on this system and always drive carefully.

    3. Pre-crash braking*


      1. The pre-crash braking function may not operate if certain operations are performed by the driver. If the accelerator pedal is being depressed strongly or the steering wheel is being turned, the system may determine that the driver is taking evasive action and possibly prevent the pre-crash braking function from operating.

      2. In some situations, while the pre-crash braking function is operating, operation of the function may be canceled if the accelerator pedal is depressed strongly or the steering wheel is turned and the system determines that the driver is taking evasive action.

      3. A large amount of braking force is applied while the pre-crash braking function is operating. As the pre-crash braking function will be canceled after the vehicle has been stopped for approximately 2 seconds, the driver should depress the brake pedal as necessary.

      4. If the brake pedal is being depressed, the system may determine that the driver is taking evasive action and possibly delay the operation timing of the pre-crash braking function.

        *: Except destination package for Taiwan

    4. When to disable the pre-crash safety system


      1. In the following situations, disable the system, as it may not operate properly, possibly leading to an accident resulting in death or serious injury:


        • When the vehicle is being towed

        • When your vehicle is towing another vehicle

        • When transporting the vehicle via truck, boat, train or similar means of transportation

        • When the vehicle is raised on a lift with the engine running and the tires are allowed to rotate freely

        • When inspecting the vehicle using a drum tester such as a chassis dynamometer or speedometer tester, or when using an on vehicle wheel balancer

        • When a strong impact is applied to the front bumper or front grille, due to an accident or other reasons

        • If the vehicle cannot be driven in a stable manner, such as when the vehicle has been in an accident or is malfunction

        • When the vehicle is driven in a sporty manner or off-road

        • When the tires are not properly inflated

        • When the tires are very worn

        • When tires of a size other than specified are installed

        • When tire chains are installed

        • When a compact spare tire or an emergency tire puncture repair kit is used

    5. Situations in which the system may not operate properly


      1. In some situations such as the following, a vehicles may not be detected by the millimeter wave radar sensor and forward recognition camera, preventing the system from operating properly:


        • If an oncoming vehicle is approaching your vehicle

        • If a vehicle ahead is a motorcycle or bicycle

        • When approaching the side of a vehicle

        • If a preceding vehicle has a small rear end, such as an unloaded truck

        • If a preceding vehicle has a low rear end, such as a low bed trailer

          A01VYRA

        • If a vehicle ahead is carrying a load which protrudes past its rear bumper

        • If a vehicle ahead has extremely high ground clearance

          A01VYKQ

        • If a vehicle ahead is irregularly shaped, such as a tractor or side car

        • If the sun or other light is shining directly on a vehicle ahead

        • If a vehicle cuts in front of your vehicle or emerges from beside a vehicle

        • If a vehicle ahead makes an abrupt maneuver (such as sudden swerving, acceleration or deceleration)

        • When suddenly cutting behind a preceding vehicle

        • When a vehicle ahead is not directly in front of your vehicle

          A01VYGY

        • When driving in inclement weather such as heavy rain, fog, snow, or a sandstorm

        • When the vehicle is hit by water, snow, dust, etc. from a vehicle ahead

        • When driving through steam or smoke

        • When driving in a place where the surrounding brightness changes suddenly, such as at the entrance or exit of a tunnel

        • When a very bright light, such as the sun or the headlights of oncoming traffic, shines directly into the forward recognition camera

        • When the surrounding area is dim, such as at dawn or dusk, or while at night or in a tunnel

        • After the engine has started the vehicle has not been driven for a certain amount of time

        • While making a left/right turn and for a few seconds after making a left/right turn

        • While driving on a curve and for a few seconds after driving on a curve

        • If your vehicle is skidding

        • If the front of the vehicle is raised or lowered

        • If the wheels are misaligned

        • If a wiper blade is blocking the forward recognition camera

        • The vehicle is wobbling

        • The vehicle is being driven at extremely high speeds

        • When driving on a hill

        • If the millimeter wave radar sensor or forward recognition camera is misaligned

      2. In some situations such as the following, sufficient braking force may not be obtained, preventing the system from performing properly:


        • If the braking functions cannot operate to their full extent, such as when the brake parts are extremely cold, extremely hot, or wet

        • If the vehicle is not properly maintained (brakes or tires are excessively worn, improper tire inflation pressure, etc.)

        • When the vehicle is being driven on a gravel road or other slippery surface

    6. If the PCS warning lights flashes and a warning message is displayed on the multi-information display


      1. The pre-crash safety system may be temporarily unavailable or there may be a malfunction in the system.


        • In the following situations, the warning light will turn off, the message will disappear and the system will become operational when normal operating conditions return:


          • When the millimeter wave radar sensor or forward recognition camera or the area around either sensor is hot, such as in the sun

          • When the millimeter wave radar sensor or forward recognition camera or the area around either sensor is cold, such as in an extremely cold environment

          • When the millimeter wave radar sensor or front grille emblem is dirty or covered with snow, etc.

          • If the forward recognition camera is obstructed, such as when the hood is open or a sticker is attached to the windshield near the forward recognition camera

        • If the PCS warning light continues to flash or the warning message does not disappear, the system may be malfunctioning.

    7. To avoid malfunction of the millimeter wave radar sensor


      1. Observe the following precautions.

      2. Otherwise, the millimeter wave radar sensor may not operate properly.


        • Keep the millimeter wave radar sensor and front grille emblem clean at all times.

          If the front of the millimeter wave radar sensor or the front or back of the front grille emblem is dirty or covered with water droplets, snow, etc., clear it.

          Clean the millimeter wave radar sensor and front grille emblem with a soft cloth so you do not mark or damage them.

          A01VYIFE02
          Text in Illustration
          *1 Millimeter Wave Radar Sensor Assembly *2 Front Grille Emblem

        • Do not attach accessories, stickers (including transparent stickers) or other items to the millimeter wave radar sensor, front grille emblem or surrounding area.

        • Do not subject the millimeter wave radar sensor or surrounding area to a strong impact.

        • Do not disassemble the millimeter wave radar sensor.

        • Do not modify or paint the millimeter wave radar sensor, front grille emblem or surrounding area.

        • The millimeter wave radar sensor complies with relevant radio wave regulations, as shown by the label attached to the sensor. Do not remove the label. Additionally, disassembly or modification of the millimeter wave radar sensor may be prohibited by law.

    8. To avoid malfunction of the forward recognition camera


      1. Observe the following precautions.

      2. Otherwise, the forward recognition camera may not operate properly.


        • Keep the windshield clean at all times.

          If the windshield is dirty or covered with an oily film, water droplets, snow, etc., clear the windshield.

          If a glass coating agent is applied to the windshield, it will still be necessary to use the windshield wipers to remove water droplets from the area of the windshield in front of forward recognition camera.

        • Do not install antennas or attach stickers (including transparent stickers) or other items to the area of the windshield in front of the forward recognition camera (shaded area in the illustration).

          A01VYVT

        • Do not attach window tinting to the windshield.

        • If the part of the windshield in front of the forward recognition camera is fogged up or covered with condensation or ice, use the windshield defogger to remove the fog, condensation or ice.

        • If water droplets cannot be properly removed from the area of the windshield in front of the forward recognition camera by the windshield wipers, replace the wiper insert or wiper blade.

        • Replace the windshield if it is damaged or cracked.

          If the windshield needs to be replaced, replace it with a regular parts number.

        • Do not get the forward recognition camera wet.

        • Do not allow bright lights to shine into the forward recognition camera.

        • Do not dirty or damage the forward recognition camera.

          When cleaning the inside of the windshield, do not allow glass cleaner to contact the lenses. Also, do not touch the lenses.

        • Do not subject the forward recognition camera to a strong impact.

        • Do not change the installation position or direction of the forward recognition camera or remove it.

          The direction of the forward recognition camera has been precisely adjusted.

        • Do not disassemble the forward recognition camera.

        • Do not install an electronic device or device that emits strong electric waves near the forward recognition camera.

        • Do not Modify any components of the vehicle around the forward recognition camera (inside rear view mirror, etc.) or ceiling.

        • Do not attach any accessories that may obstruct the forward recognition camera to the hood, front grille or front bumper.

        • If a surfboard or other long object is to be mounted on the roof, make sure that it will not obstruct the forward recognition camera.

        • Do not modify the headlights or other lights.