PCS (Pre-Collision System) The pre-collision system uses a radar sensor and front camera to detect objects (Detectable 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. (Changing settings of the pre-collision system) Detectable objects The system can detect the following (The detectable objects differs depending on the function.): Vehicles Bicyclists Pedestrians 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. 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. Emergency steering assist If the system determines that the possibility of a frontal collision is high and that there is sufficient space for the vehicle to be steered into within its lane, and the driver has begun evasive maneuver or steering, emergency steering assist will assist the steering movements to help enhance the vehicle stability and for lane departure prevention. During operation, the indicator will illuminate in green. Intersection right/left turn assistance If the system determines that there is a high possibility of a collision in the following situations, it will assist with Pre-collision warning and, if necessary Pre-collision braking.Depending on the configuration of the intersection, it may not be possible to support. When you turn right/left at an intersection and cross the path of an oncoming vehicle When you turn right/left, pedestrian is detected in the forward direction and estimated to enter your vehicle’s path (bicyclists are not detected.) Warning: Limitations of the pre-collision system The driver is solely responsible for safe driving. Always drive safely, taking care to observe your surroundings.Do not use the pre-collision system instead of normal braking operations under any circumstances. This system will not prevent collisions or lessen collision damage or injury 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. Although this system is designed to help avoid a collision or help reduce the impact of the 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. Conditions under which the system may operate even if there is no possibility of a collision: Conditions under which the system may operate even if there is no possibility of a collision Conditions under which the system may not operate properly: Situations in which the system may not operate properly Do not attempt to test the operation of the pre-collision system yourself.Depending on the objects used for testing (dummies, cardboard objects imitating detectable objects, etc.), the system may not operate properly, possibly leading to an accident. Warning buzzers Pre-collision braking Pre-collision braking When the pre-collision braking function is operating, a large amount of braking force will be applied. If the vehicle is stopped by the operation of the pre-collision braking function, the pre-collision braking function operation will be canceled after approximately 2 seconds. Depress the brake pedal as necessary. The pre-collision 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-collision braking function from operating. In some situations, while the pre-collision 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. 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-collision braking function. Emergency steering assist As emergency steering assist operation will be canceled when the system determines that lane departure prevention function has been completed. Emergency steering assist may not operate or may be cancel in the following cases as the system may determine the driver is taking actions. If the accelerator pedal is being depressed strongly, the steering wheel is being operated sharply, the brake pedal is being depressed or the turn signal lever is being operated. In this case, the system may determine that the driver is taking evasive action and the emergency steering assist may not operate. In some situations, while the emergency steering assist is operating, operation of the function may be canceled if the accelerator pedal is depressed strongly, the steering wheel is operated sharply or the brake pedal is being depressed and the system determines that the driver is taking evasive action. When the emergency steering assist is operating, if the steering wheel is held firmly or is operated in the opposite direction to that which the system is generating torque, the function may be canceled. 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: 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 hybrid system on 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 malfunctioning 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 If equipment (snow plow, etc.) that may obstruct the radar sensor or front camera is temporarily installed to the vehicle Changing settings of the pre-collision system Switches PCS OFF switch Pre-Collision System (PCS) PCS OFF switch PCS (Pre-Collision System) PCS OFF switch Enabling/disabling the pre-collision system The pre-collision system can be enabled/disabled on (Multi-information display (4.2-inch display) - Settings display, Multi-information display (7-inch display) - Settings display) of the multi-information display. The system is automatically enabled each time the power switch is turned to ON. If the system is disabled, the PCS warning light will turn on and a message will be displayed on the multi-information display. Changing the pre-collision warning timing The pre-collision warning timing can be changed on (Multi-information display (4.2-inch display) - Settings display, Multi-information display (7-inch display) - Settings display) 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). 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. Early Middle This is the default setting. Late Note: 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 12-volt 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 The operation speeds and operation cancellation for each function is listed below. Pre-collision warning
Detectable objects Vehicle speed Relative speed between your vehicle and object
preceding and stopped vehicles Approx. 7 to 110 mph (10 to 180 km/h) Approx. 7 to 110 mph (10 to 180 km/h)
Oncoming vehicles Approx. 7 to 110 mph (10 to 180 km/h) Approx. 13 to 110 mph (20 to 180 km/h)
Bicyclists and pedestrians Approx. 7 to 50 mph (10 to 80 km/h) Approx. 7 to 50 mph (10 to 80 km/h)
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
Detectable objects Vehicle speed Relative speed between your vehicle and object
Preceding and stopped vehicles Approx. 20 to 110 mph (30 to 180 km/h) Approx. 20 to 110 mph (30 to 180 km/h)
Bicyclists and pedestrians Approx. 20 to 50 mph (30 to 80 km/h) Approx. 20 to 50 mph (30 to 80 km/h)
Pre-collision braking
Detectable objects Vehicle speed Relative speed between your vehicle and object
Preceding and stopped vehicles Approx. 7 to 110 mph (10 to 180 km/h) Approx. 7 to 110 mph (10 to 180 km/h)
Oncoming vehicles Approx. 7 to 110 mph (10 to 180 km/h) Approx. 13 to 110 mph (20 to 180 km/h)
Bicyclists and pedestrians Approx. 7 to 50 mph (10 to 80 km/h) Approx. 7 to 50 mph (10 to 80 km/h)
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.
Detectable objects Vehicle speed Relative speed between your vehicle and object
Preceding and stopped vehicles, bicyclists and pedestrians Approx. 25 to 50 mph (40 to 80 km/h) Approx. 25 to 50 mph (40 to 80 km/h)
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.
Detectable objects Vehicle speed Oncoming vehicle speed Relative speed between your vehicle and object
Oncoming vehicles Approx. 7 to 15 mph (10 to 25 km/h) Approx. 20 to 35 mph (30 to 55 km/h) Approx. 25 to 50 mph (40 to 80 km/h)
Pedestrians Approx. 7 to 15 mph (10 to 25 km/h) — Approx. 7 to 15 mph (10 to 25 km/h)
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.
Detectable objects Vehicle speed Oncoming vehicle speed Relative speed between your vehicle and object
Oncoming vehicles Approx. 10 to 15 mph (15 to 25 km/h) Approx. 20 to 28 mph (30 to 45 km/h) Approx. 28 to 43 mph (45 to 70 km/h)
Pedestrians Approx. 7 to 15 mph (10 to 25 km/h) — Approx. 7 to 15 mph (10 to 25 km/h)
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. (Situations in which the system may not operate properly)The illustration shows an image of detectable objects. 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 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 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 When passing a detectable object in an oncoming lane that is stopped to make a right/left turn 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.) 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 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 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 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 If a vehicle ahead has extremely high ground clearance 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 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 While making a right/left turn, when a pedestrian approaches from behind or side of your vehicle 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 (Turning off both TRAC, VSC and Trailer Sway Control systems), 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.