Toyota Camry owners & service manuals

Toyota Camry: Changing settings of the pre-collision system - PCS (Pre-Collision System)

Toyota Camry Owner's Manual XV70 (2017-2024) / Driving / Using the driving support systems / Changing settings of the pre-collision system - PCS (Pre-Collision System)

■ Enabling/disabling the pre-collision system

The pre-collision system can be enabled/disabled on (4.2-inch display) or (7-inch display) of the multi-information display.

Vehicles without a smart key system: The system is automatically enabled each time the engine switch is turned to the "ON" position.

Vehicles with a smart key system: The system is automatically enabled each time the engine switch is turned to IGNITION 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.

Using the driving support systems

■ Changing the pre-collision warning timing

The pre-collision warning timing can be changed on (4.2-inch display) or (7-inch display) of the multi-information display.

The warning timing setting is retained when the engine 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).

If the pre-collision warning timing is changed, emergency steering assist timing will also be changed accordingly.

If late is selected, emergency steering assist would not operate in case of an emergency.

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

Using the driving support systems

■Operational conditions for each pre-collision function

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

The system may not operate in the following situations:

  • If a battery terminal has been disconnected and reconnected and then the vehicle has not been driven for a certain amount of time
  • If the shift lever is in R
  • When the VSC OFF indicator is illuminated (only the pre-collision warning function will be operational) The operation speeds and operation cancellation for each function is listed below.
  • Pre-collision warning

Using the driving support systems

While the pre-collision warning function is operating, if the steering wheel is operated heavily or suddenly, the pre-collision warning may be cancelled.

  • Pre-collision brake assist

Using the driving support systems

  • Pre-collision braking

Using the driving support systems

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

  • The accelerator pedal is depressed strongly.
  • The steering wheel is turned sharply or abruptly.
  • Emergency steering assist

When the turn signal lights are flashing, emergency steering assist will not operate in case of an emergency.

Using the driving support systems

If any of the following occur while the emergency steering assist function is operating, it will be canceled:

  • The accelerator pedal is depressed strongly.
  • The steering wheel is turned sharply or abruptly.
  • The brake pedal is depressed.
  • Intersection right/left turn assistance (pre-collision warning)

When the turn signal lights are not flashing, support for turning left or right at an intersection which targets oncoming vehicles does not work.

Using the driving support systems

  • Intersection right/left turn assistance (pre-collision braking)

When the turn signal lights are not flashing, support for turning left or right at an intersection which targets oncoming vehicles does not work.

Using the driving support systems

■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.

Using the driving support systems

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

  • In some situations such as the following, the system may determine that there is a possibility of a frontal collision and operate.
  • 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

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

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

Using the driving support systems

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

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.)

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

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, radar equipped vehicles, etc., or other location where strong radio waves or electrical noise may be present
  • When there are many things which can reflect the radio waves of the radar in the vicinity (tunnels, truss bridges, gravel roads, snow covered road that have tracks, etc.)
  • While making a right/left turn, when an oncoming vehicle or a crossing pedestrian has already exited the path of your vehicle
  • While making a right/left turn, closely in front of an oncoming vehicle or a crossing pedestrian.
  • While making a right/left turn, when an oncoming vehicle or a crossing pedestrian stops before entering the path of your vehicle
  • While making a right/left turn, when an oncoming vehicle turns right/left in front of your vehicle

Using the driving support systems

  • While steering into the direction of oncoming traffic

■Situations in which the system may not operate properly

  • In some situations such as the following, an object may not be detected by the radar sensor and front camera, preventing the system from operating 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

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 there are many things which can reflect the radio waves of the radar in the vicinity (tunnels, truss bridges, gravel roads, snow covered road that have tracks, etc.)
  • When there is an effect on the radio waves to the radar that is installed on another vehicle
  • 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

Using the driving support systems

  • If a vehicle ahead has extremely high ground clearance

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 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

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
  • When driving in a traffic lane separated by more than one lane where oncoming vehicles are driving while making a right/left turn
  • When largely out of place with the opposite facing targeted oncoming vehicle during a right/left turn

Using the driving support systems

  • While making a right/left turn, when a pedestrian approaches from behind or side of your vehicle

Using the driving support systems

  • In addition to the above, in some situations, such as the following, the emergency steering assist may not operate.
  • When the white (yellow) lane lines are difficult to see, such as when they are faint, diverging/merging, or a shadow is cast upon them
  • When the lane is wider or narrower than normal
  • When there is a light and dark pattern on the road surface, such as due to road repairs
  • When the target is too close
  • When there is insufficient safe or unobstructed space for the vehicle to be steered into
  • If oncoming vehicle is present
  • If VSC function is operating
  • In some situations such as the following, sufficient braking force or steering 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
  • When the road surface has deep wheel tracks
  • When driving on a hill road
  • When driving on a road that has inclines to the left or right

■If VSC is disabled

  • If VSC is disabled the pre-collision brake assist and pre-collision braking functions are also disabled.
  • The PCS warning light will turn on and "VSC Turned Off Pre-Collision Brake System Unavailable" will be displayed on the multi-information display.

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