TOYOTA AVENSIS 2012 Owners Manual

331 2-4. Using other driving systems
2
When driving
AVENSIS_EE (OM20B44E)
CAUTION
Any of the following conditions may result in an accident which could cause
death or serious injury:
The ABS does not operate effectively when
The limits of tire gripping performance have been exceeded.
The vehicle hydroplanes while driving at high speed on a wet or slick road.
Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you in the following situ-
ations:
When driving on dirt, gravel or snow-covered roads
When driving with tire chains
When driving over bumps in the road
When driving over roads with potholes or roads with uneven roads
TRC may not operate effectively when
Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRC is operating.
Do not drive the vehicle in conditions where stability and power may be lost.
When the VSC is activated
The slip indicator light flashes. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the
indicator light flashes.

332 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
CAUTION
When the TRC and VSC are off
Be especially careful and drive at a speed appropriate to the road condi-
tions. As these are systems to ensure vehicle stability and driving force, do
not turn off TRC and VSC unless necessary.
Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total
load capacity. In addition, make sure that the tires are inflated to the speci-
fied tire pressure level.
The ABS and VSC systems will not function correctly if different tires are fit-
ted on the vehicle.
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional for further information when replacing tires or
wheels.
Handling of tires and suspension
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause the system to malfunction.

333
2-4. Using other driving systems
2
When driving
AVENSIS_EE (OM20B44E)
PCS (Pre-Crash Safety)
: If equipped
When the radar sensor detects possibility of a frontal collision, the
pre-crash safety systems such as the brakes and seat belts are
automatically engaged to lessen impact and injuries to occupants
as well as vehicle damage.
Pre-crash seat belts
If the pre-crash sensor detects that a collision is unavoidable,
the pre-crash safety system will retract the seat belt before the
collision occurs.
The same will happen if the driver makes an emergency braking
or loses control of the vehicle. (P. 110)
However, when the VSC system is disabled, the system will not
operate in the event of skidding.
Pre-crash brake assist
When there is a high possibility of a frontal collision, the system
applies greater braking force in relation to how strongly the
brake pedal is depressed.
Pre-crash braking
When there is a high possibility of a frontal collision, the system
warns the driver using a warning light, warning display and
buzzer. If the system determines that a collision is unavoidable,
the brakes are automatically applied to reduce the collision
speed. Pre-crash braking can be disabled using the pre-crash
braking OFF switch.

334 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
Disabling pre-crash braking
Type A
Disabled
Enabled
The “PCS” warning light will turn
on when the pre-crash braking is
disabled.
Type B
Disabled
Enabled
The “PCS” warning light will turn
on when the pre-crash braking is
disabled.
Radar sensor
Detects vehicles or other obsta-
cles on or near the road ahead
and determines whether a colli-
sion is imminent based on the
position, speed, and heading of
the obstacles.

335 2-4. Using other driving systems
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When driving
AVENSIS_EE (OM20B44E)
Obstacles not detected
The sensor cannot detect plastic obstacles such as pylons. There may also
be occasions when the radar sensor cannot detect pedestrians, animals,
bicycles, motorcycles, trees, or snowdrifts.
The pre-crash safety is operational when
Pre-crash seat belts (Type A):
• Vehicle speed is greater than about 30 km/h (19 mph).
• The system detects sudden braking or skidding.
• The front occupants are wearing a seat belt.
Pre-crash seat belts (Type B):
• Vehicle speed is above 5 km/h (4 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 30 km/h (19 mph).
• The front occupants are wearing a seat belt.
Pre-crash brake assist:
• Vehicle speed is above 30 km/h (19 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 30 km/h (19 mph).
• The brake pedal is depressed.
Pre-crash braking:
• The pre-crash braking OFF switch is not pressed.
• Vehicle speed is above 15 km/h (10 mph).
• The relative speed difference between your vehicle and another vehi-
cle that is ahead of your vehicle, or the speed at which your vehicle is
approaching an obstacle is greater than 15 km/h (10 mph).

336 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
Conditions that may trigger the system even if there is no possibility of
a collision
When there is an object by the roadside at the entrance to a curve
When passing an oncoming vehicle on a curve
When driving over a narrow iron bridge
When there is a metal object on the road surface
When driving on an uneven road surface
When passing an oncoming vehicle on a right-turn (right-hand drive vehi-
cles) or left-turn (left-hand drive vehicles)
When your vehicle rapidly closes on the vehicle in front
When a grade separation/interchange, sign, billboard, or other structure
appears to be directly in the vehicle’s line of travel
When the steep angle of the road causes a metal object located beneath
the road surface to be seen ahead of the vehicle
When an extreme change in vehicle height occurs
When the axis of the radar is out of adjustment
When passing through certain toll gates
When passing through an overpass
When the system is activated in the situations described above there is also
a possibility that the seat belts will retract quickly and the brakes will be
applied with a force greater than normal. When the seat belt is locked in the
restricted position, stop the vehicle in a safe place, release the seat belt and
refasten.

337 2-4. Using other driving systems
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When driving
AVENSIS_EE (OM20B44E)
Situations in which the pre-crash safety system does not function
properly
The system may not function effectively in situations such as the following:
On roads with sharp bends or uneven surfaces
If a vehicle suddenly moves in front of your vehicle, such as at an inter-
section
If a vehicle suddenly cuts in front of your vehicle, such as when overtak-
ing
In inclement weather such as heavy rain, fog, snow or sand storms
When your vehicle is skidding with the VSC system off
When the axis of the radar is out of adjustment
When an extreme change in vehicle height occurs
When there is a malfunction in the system
Warning lights and/or warning messages will turn on or flash. (P. 624)

338 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
Certification

339 2-4. Using other driving systems
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When driving
AVENSIS_EE (OM20B44E)

340 2-4. Using other driving systems
AVENSIS_EE (OM20B44E)
CAUTION
Handling the radar sensor
Observe the following to ensure the pre-crash safety system can function
effectively.
Keep the sensor and grille cover clean at all time.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may become
inaccurate or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
Do not disassemble the sensor.
Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
Do not modify or paint the sensor and grille cover.
Limitations of the pre-crash safety system
Do not rely on the pre-crash safety system. Always drive safely, taking care
to observe your surroundings and checking for any obstacles or other road
hazards.
Failure to do so may cause an accident resulting in death or serious injury.