Pre-Collision Braking System
21
Continued on next page Ÿ
- Vehicle conditions (amount of load, number of occupants, etc.)
- Road conditions (grade, slipperiness, shape, bumps, etc.)
- When visibility ahead is poor (rain, snow, fog or smoke, etc.)
- When the detected object is something other than a vehicle, motorcycle,
bicycle or pedestrian
xA domestic animal or other animal (a dog or deer, etc.)
x A guardrail, telephone pole, tree, fence or wall, etc.
- Even if the obstacle is a motorcycle, bicycle or pedestrian, depending on the brightness of the surroundings as well as the relative movement, and
aspect or angle of the object, there may be cases when the system can-
not detect it.
- When the system determines that operation by the driver (based on accelerator pedal operation, braking, steering wheel angle, etc.) is
intended as evasive action
- Vehicle maintenance status (brake systems, tire wear, tire pressure, whether a temporary spare tire is being used, etc.)
- When towing a trailer or another vehicle, etc.
- When the brakes are cold due to outside temperature being low or just after starting the engine.
- When the brakes are overheated on downhill grades (braking effective- ness is reduced)
- When driving in rain or after washing the vehicle (the brakes are wet and braking effectiveness is reduced)
- Recognition conditions of the stereo cameras In particular, the function may be unable to stop the vehicle or may not
activate in the following cases.
xBad weather (for example heavy rain, a blizzard or thick fog)
x When visibility is poor due to sand, smoke or water vapor in the air or
when the vehicle in front or oncoming traffic causes water, snow, dirt,
dust or other substances to obscure the view through the windshield
x When driving at night or in a tunnel without the headlights on
x When driving at night or in a tunnel when there is a vehicle in front that
does not have its taillights on
x When approaching a motorcycle, bicycle or pedestrian at night
x When ambient light is poor in the evening or early morning
x When a vehicle, motorcycle, bicycle or pedestrian is outside the area
illuminated by the headlights
x When affected by strong light from the front (for example, sunlight at
dawn, sunset or headlight beams, etc.)
x When there is snow, frost, dirt or dust on the windshield or it is clouded
x When fluid has not been fully wiped off the windshield during or after
washer use
x When the target cannot be correctly recognized because the stereo
cameras’ view is obstructed by water droplets from rain or the window
washer, or by the wiper blades.
Pre-Collision Throttle Management
63
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xIf your vehicle is trapped on a railroad crossing and you are trying to
escape by driving through the crossing gate, the stereo cameras may rec-
ognize the crossing gate as an obstacle and Pre-Collision Throttle
Management system may activate. In this case, remain calm and either
continue to depress the accelerator pedal or turn off the Pre-Collision
Throttle Management system.
Ÿ Refer to page 67.
x Pre-Collision Throttle Management may not activate depending on the fol-
lowing conditions:
- The distance between your vehicle and the obstacle, speed difference, and lateral displacement (amount of offset)
- Recognition status of the stereo cameras In particular, the function may not activate in the following cases:
xBad weather (for example heavy rain, a blizzard or thick fog)
x When visibility is poor due to sand or smoke in the air
x When light is poor in the evening, early morning, or at night
x In a dark area (indoor parking area, etc.)
x When there is an obstacle outside the area illuminated by the head-
lights
x When affected by strong light from the front (for example sunlight at
sunrise or sunset headlight beams, etc.)
x When there is snow, frost, dirt or dust on the windshield, or it is clouded
x When fluid has not been fully wiped off the windshield during or after
use of the window washer
x When obstacles cannot be correctly recognized due to water droplets
from rain or the washer, or the wiper blades obstructing the stereo
cameras’ field of view
x When the stereo cameras’ field of view is obstructed (for example by a
canoe on the roof of the vehicle)
x With low obstacles (low wall, crash barrier, low vehicle, etc.)
x When the size and height of an obstacle is smaller than the limitations
of the stereo cameras’ recognition capability
x With small animals or children.
x With pedestrians who are sitting or lying down
x When the rear portion
nearest your vehicle is
too small or too close
(such as a trailer or
oncoming vehicle) the
system may not recog-
nize the part of that
vehicle which is closest
to you.
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