Toyota 2014 Sienna Manual page 344

2-4. Using other driving systems
■
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 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 such as the VSC system off
●
When an extreme change in vehicle height occurs
●
When the axis of the radar is out of adjustment
■
Automatic cancelation of the pre-collision system
When a malfunction occurs due to sensor contamination, etc. that results in
the sensors being unable to detect obstacles, the pre-collision system will be
automatically disabled. In this case, the system will not activate even if there
is a collision possibility.
■
When there is a malfunction in the system
Warning lights and warning messages will turn on or flash. (P. 743)
344
SIENNA_OM_OM45483U_(U)