■
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 left-turn
●
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 climbing a steep hill or going down a downhill slope causes an over-
●
head billboard or other metallic structure to appear directly in the vehicle's
line of travel
When there are excessive changes in the vehicle height (when it tilts for-
●
wards or backwards)
When passing through an electronic toll collection gate (only in countries
●
with electronic toll collection)
When the axis of the radar is out of adjustment
●
When passing through a tunnel
●
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
retracted position, stop the vehicle in a safe place, release the seat belt and
refasten it.
■
Obstacles not detected
The sensor cannot detect plastic obstacles such as traffic cones. There may
also be occasions when the radar sensor cannot detect pedestrians, animals,
bicycles, motorcycles, trees, or snowdrifts.
■
Situations in which the pre-collision 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 intersec-
●
tion
If a vehicle suddenly cuts in front of your vehicle, such as when overtaking
●
In inclement weather such as heavy rain, fog, snow or sand storms
●
When your vehicle is skidding such as the VSC system off
●
When an extreme change in vehicle height occurs
●
When the axis of the radar is out of adjustment
●
SIENNA_OM_01999-08001_(U)
4-5. Using the driving support systems
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