Lexus RX Owners Manual (RX450h): BSM (Blind Spot Monitor)

Summary of the Blind Spot Monitor

The Blind Spot Monitor is a system that has 2 functions:

  • The BSM (Blind Spot Monitor) function
    Assists the driver in making a decision when changing lanes
  • The RCTA (Rear Cross Traffic Alert) function
    Assists the driver when backing up

These functions use same sensors.

Lexus RX. Using the driving support systems

  1. Multi-information display
    Turning the BSM function/RCTA function on/off.
    The RCTA function is available when the BSM function is on.
  2. Outside rear view mirror indicators
    BSM function: When a vehicle is detected in a blind spot of the outside rear view mirrors or approaching rapidly from behind into a blind spot, the outside rear view mirror indicator on the detected side will illuminate. If the turn signal lever is operated toward the detected side, the outside rear view mirror indicator flashes.

    RCTA function: When a vehicle approaching from the right or left at the rear of the vehicle is detected, both outside rear view mirror indicators will flash.

  3. "BSM" indicator/"RCTA" indicator
    When the BSM function/RCTA function is turned on, the indicator illuminates.
  4. Monitor screen display (RCTA function only)
    If a vehicle approaching from the right or left at the rear of the vehicle is detected, the RCTA icon for the detected side will be displayed on the monitor screen.

    This illustration shows an example of a vehicle approaching from the left at the rear of the vehicle.

  5. RCTA buzzer (RCTA function only)
    If a vehicle approaching from the right or left at the rear of the vehicle is detected, a buzzer will sound. The buzzer also sounds for approximately 1 second immediately after the BSM function is operated to turn the system on.

Turning the BSM function/RCTA function on/off

1. Press or of the meter control switches, select .

2. Press or of the meter control switches, select "BSM".

3. Press or of the meter control switches, select "BSM" or "RCTA".

■ Outside rear view mirror indicator visibility In strong sunlight, the outside rear view mirror indicator may be difficult to see.

■ Hearing the RCTA buzzer The RCTA buzzer may be difficult to hear over loud noises, such as if the audio system volume is high.

■ When there is a malfunction in the Blind Spot Monitor If a system malfunction is detected due to any of the following, a warning message will be displayed:

  • A sensor is malfunctioning
  • A sensor is dirty or covered with snow or a sticker
  • The outside temperature is extremely high or low
  • Sensor voltage is abnormal
  • A sensor is misaligned

■ Customization Some functions can be customized.

WARNING

■ Handling the radar sensor Blind Spot Monitor sensors are installed behind the left and right sides of the rear bumper respectively. Observe the following to ensure the Blind Spot Monitor can function correctly.

  • Keep the sensors and the surrounding areas on the rear bumper clean at all times.

    If a sensor or its surrounding area on the rear bumper is dirty or covered with snow, the Blind Spot Monitor may not operate and a warning message will be displayed.

    In this situation, clear off the dirt or snow and drive the vehicle with the operation conditions of the BSM function satisfied for approximately 10 minutes. If the warning message does not disappear, have the vehicle inspected by your Lexus dealer.

Lexus RX. Using the driving support systems

  • Do not subject a sensor or its surrounding area on the rear bumper to a strong impact.

    If a sensor is moved even slightly off position, the system may malfunction and vehicles may not be detected correctly.

    In the following situations, have your vehicle inspected by your Lexus dealer.

    • A sensor or its surrounding area is subject to a strong impact.
    • If the surrounding area of a sensor is scratched or dented, or part of them has become disconnected.
  • Do not disassemble the sensor.
  • Do not attach stickers to the sensor or surrounding area on the rear bumper.
  • Do not modify the sensor or surrounding area on the rear bumper.
  • Do not paint the rear bumper any color other than an official Lexus color.
Selecting constant speed control mode
When constant speed control mode is selected, your vehicle will maintain a set speed without controlling the vehicle-to-vehicle distance. Select this mode only when vehicle-to-vehicle distance con ...

BSM function
The BSM function uses radar sensors to detect the following vehicles traveling in adjacent lanes and advises the driver of the presence of such vehicles via the indicators on the outside rear view ...

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Lexus RX Owners Manual (RX450h)

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