Lexus NX: PCS (Pre-Collision System)

The pre-collision system uses a radar sensor and front camera to detect objects in front of the vehicle. When the system determines that the possibility of a frontal collision with an object is high, a warning operates to urge the driver to take evasive action and the potential brake pressure is increased to help the driver avoid the collision. If the system determines that the possibility of a frontal collision with an object is extremely high, the brakes are automatically applied to help avoid the collision or help reduce the impact of the collision.

The pre-collision system can be disabled/ enabled and the warning timing can be changed.

Detectable objects

The system can detect the following:

System functions

■ Pre-collision warning When the system determines that the possibility of a frontal collision is high, a buzzer will sound and a warning message will be displayed on the multi-information display to urge the driver to take evasive action.

Lexus NX. Using the driving support systems

■ Pre-collision brake assist When the system determines that the possibility of a frontal collision is high, the system applies greater braking force in relation to how strongly the brake pedal is depressed.

■ Pre-collision braking If the system determines that the possibility of a frontal collision is extremely high, the brakes are automatically applied to help avoid the collision or reduce the impact of the collision.

WARNING

■Limitations of the pre-collision system

■Pre-collision braking

■When to disable the pre-collision system In the following situations, disable the system, as it may not operate properly, possibly leading to an accident resulting in death or serious injury:

Changing settings of the pre-collision system

■ Enabling/disabling the pre-collision system The pre-collision system can be enabled/disabled on of the multi-information display.

The system is automatically enabled each time the power switch is turned to ON mode.

If the system is disabled, the PCS warning light will turn on and a message will be displayed on the multi-information display.

Lexus NX. Using the driving support systems

■ Changing the pre-collision warning timing The pre-collision warning timing can be changed on of the multi-information display.

The warning timing setting is retained when the power switch is turned off. However, if the pre-collision system is disabled and re-enabled, the operation timing will return to the default setting (middle).

Lexus NX. Using the driving support systems

  1. Early
  2. Middle
    This is the default setting.
  3. Late

■Operational conditions The pre-collision system is enabled and the system determines that the possibility of a frontal collision with a detected object is high.

Each function is operational at the following speed

Lexus NX. Using the driving support systems

Lexus NX. Using the driving support systems

Lexus NX. Using the driving support systems

The system may not operate in the following situations:

■Object detection function The system detects objects based on their size, profile, motion, etc. However, an object may not be detected depending on the surrounding brightness and the motion, posture, and angle of the detected object, preventing the system from operating properly.

The illustration shows an image of detectable objects.

Lexus NX. Using the driving support systems

■Cancelation of the pre-collision braking If either of the following occur while the pre-collision braking function is operating, it will be canceled:

■Conditions under which the system may operate even if there is no possibility of a collision

  • When passing a detectable object, etc.
  • When changing lanes while overtaking a detectable object, etc.
  • When approaching a detectable object in an adjacent lane or on the roadside, such as when changing the course of travel or driving on a winding road

Lexus NX. Using the driving support systems

  • When rapidly closing on a detectable object, etc.
  • When approaching objects on the roadside, such as detectable objects, guardrails, utility poles, trees, or walls
  • When there is a detectable object or other object by the roadside at the entrance of a curve

Lexus NX. Using the driving support systems

  • When there are patterns or paint in front of your vehicle that may be mistaken for a detectable object
  • When the front of your vehicle is hit by water, snow, dust, etc.
  • When overtaking a detectable object that is changing lanes or making a right/left turn

Lexus NX. Using the driving support systems

  • When passing a detectable object in an oncoming lane that is stopped to make a right/left turn

Lexus NX. Using the driving support systems

  • When a detectable object approaches very close and then stops before entering the path of your vehicle
  • If the front of your vehicle is raised or lowered, such as when on an uneven or undulating road surface
  • When driving on a road surrounded by a structure, such as in a tunnel or on an iron bridge
  • When there is a metal object (manhole cover, steel plate, etc.), steps, or a protrusion in front of your vehicle
  • When passing under an object (road sign, billboard, etc.)

Lexus NX. Using the driving support systems

  • When approaching an electric toll gate barrier, parking area barrier, or other barrier that opens and closes
  • When using an automatic car wash
  • When driving through or under objects that may contact your vehicle, such as thick grass, tree branches, or a banner

Lexus NX. Using the driving support systems

  • When driving through steam or smoke
  • When driving near an object that reflects radio waves, such as a large truck or guardrail
  • When driving near a TV tower, broadcasting station, electric power plant, or other location where strong radio waves or electrical noise may be present

■Situations in which the system may not operate properly

  • When a detectable object is approaching your vehicle
  • When your vehicle or a detectable object is wobbling
  •  If a detectable object makes an abrupt maneuver (such as sudden swerving, acceleration or deceleration)
  • When your vehicle approaches a detectable object rapidly
  • When a detectable object is not directly in front of your vehicle

Lexus NX. Using the driving support systems

  • When a detectable object is near a wall, fence, guardrail, manhole cover, vehicle, steel plate on the road, etc.
  • When a detectable object is under a structure
  • When part of a detectable object is hidden by an object, such as large baggage, an umbrella, or guardrail
  • When multiple detectable objects are close together
  • If the sun or other light is shining directly on a detectable object
  • When a detectable object is a shade of white and looks extremely bright
  • When a detectable object appears to be nearly the same color or brightness as its surroundings
  • If a detectable object cuts or suddenly emerges in front of your vehicle
  • When the front of your vehicle is hit by water, snow, dust, etc.
  • When a very bright light ahead, such as the sun or the headlights of oncoming traffic, shines directly into the front camera
  • When approaching the side or front of a vehicle ahead
  • If a vehicle ahead is a motorcycle
  • If a vehicle ahead is narrow, such as a personal mobility 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

Lexus NX. Using the driving support systems

  • If a vehicle ahead has extremely high ground clearance

Lexus NX. Using the driving support systems

  • If a vehicle ahead is carrying a load which protrudes past its rear bumper
  • If a vehicle ahead is irregularly shaped, such as a tractor or side car
  • If a vehicle ahead is a child sized bicycle, a bicycle that is carrying a large load, a bicycle ridden by more than one person, or a uniquely shaped bicycle (bicycle with a child seat, tandem bicycle, etc.)
  • If a pedestrian/or the riding height of a bicyclist ahead is shorter than approximately 3.2 ft. (1 m) or taller than approximately 6.5 ft. (2 m)
  • If a pedestrian/bicyclist is wearing oversized clothing (a rain coat, long skirt, etc.), making their silhouette obscure
  • If a pedestrian is bending forward or squatting or bicyclist is bending forward
  • If a pedestrian/bicyclist is moving fast
  • If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
  • When driving in inclement weather such as heavy rain, fog, snow or a sandstorm
  • When driving through steam or smoke
  • When the surrounding area is dim, such as at dawn or dusk, or while at night or in a tunnel, making a detectable object appear to be nearly the same color as its surroundings
  • When driving in a place where the surrounding brightness changes suddenly, such as at the entrance or exit of a tunnel
  • After the hybrid system 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

Lexus NX. Using the driving support systems

  • If the wheels are misaligned
  • If a wiper blade is blocking the front camera
  • The vehicle is being driven at extremely high speeds
  • When driving on a hill
  • If the radar sensor or front camera is misaligned

■If VSC is disabled

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 Key information

Keys Key types The following keys are provided with the vehicle. Electronic keys Operating the smart access system with push-button start Operating the wireless remote control function Mechanical keys Key number plate Card key (electronic key) (if equipped) Opera

 Inside rear view mirror

The rear view mirror's position can be adjusted to enable sufficient confirmation of the rear view. Adjusting the height of rear view mirror The height of the rear view mirror can be adjusted to suit your driving posture. Adjust the height of the rear view mirror by moving it up and down.

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