Toyota sienna 2004 Service Manual page 333

In the following cases, the system may
not work properly.
D
When ice, snow, mud or other objects
build up on the sensor.
D
When the vehicle is parked in extreme-
ly high or extremely low temperature
for a long period.
D
When driving on bumpy or graveled
roads or on grass
D
When a device such as a horn from
another vehicle, motorcycle engine, or
an air brake sound from a heavy−duty
vehicle, issues ultrasonic waves, near
your vehicle
D
When attaching a two−way radio anten-
na
D
When rain or water splashes on the
sensor.
D
When operating the vehicle on an in-
clined surface
D
When a radio antenna or fender pole
is mounted on your vehicle.
D
When a towing hitch is mounted on
your vehicle.
04 SIENNA_U (L/O 0408)
The system may not detect the follow-
ing.
D
Thin objects such as a wire or rope
D
Objects with a surface area too small
to reflect ultrasonic waves such as
wire gauze
D
Sound wave absorbing objects or mate-
rial such as cotton or snow
D
A person near the vehicle (depending
on the type of clothes worn)
D
Objects with a sharp edge
D
Small or short objects
D
Tall objects with an upper part project-
ing toward the vehicle
D
Objects just under the bumper
D
Objects very close to your vehicle
In the following cases, have
Toyota dealer check the system.
D
When the bumper is damaged.
D
When the indicator is continuously on.
I n f o r ma t i o n P r o v i d e d b y :
Toyota park assist system
(type B)
1: Rear sensors
2: Rear corner sensors
The Toyota park assist system is de-
signed to inform you of the approxi-
mate distance between your vehicle and
your
an obstruction by indicator and buzzer
while driving at approximate 10 km/h (6
mph) or less when parking the vehicle.
This system uses sensors to detect ob-
structions.
This system works when the ignition key
is at the "ON" position and the transmis-
sion is in the "R" position.
The sensors work only when the transmis-
sion is in the "R" position.
2004 SIENNA from Aug. '04 Prod. (OM45422U)
333