2006 TOYOTA SIENNA Owners Manual

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CHANGING VEHICLETOVEHICLE
DISTANCE
You can select one of the following ve-
hicle−to −vehicle distances.
1. LONG
2. MIDDLE
3. SHORT
Each time you pull the distance switch
briefly toward you, the setting changes
from LONG to MIDDLE to SHORT and
then back to LONG. You can confirm the
setting on the display.
Your vehicle speed changes in proportion
to the speed of the vehicle ahead, main-
taining the selected distance. However, if
the vehicle ahead is slower, the selected
distance will be shorter than the desig-
nated distance.
When the vehicle −to −vehicle distance con-
trol mode is activated or the “READY”
indicator comes on, the vehicle −to −vehicle
distance setting can be changed.
The vehicle −to −vehicle distance is always
set to LONG when the ignition switch is
turned on. Select the vehicle
−to −vehicle distance con-
sidering traffic conditions. The approximate
vehicle− to−vehicle distance based on time
interval when driving at 88 km/h (55 mph)
is shown below:
LONG about 75 m (245 ft.) . . . . . . . . . . .
MIDDLE about 50 m (165 ft.) . . . . . . . . . .
SHORT about 30 m (100 ft.) . . . . . . . . . .
If the vehicle speed is slower than 88
km/h (55 mph), the distance will be short-
er than the above.
During long downhill driving, the vehicle −
to −vehicle distance will be shorter than
the selected distance.
BRAKING CONTROL
Dynamic laser cruise control is not a colli-
sion avoidance system. If the approach
warning is activated, depress the brake
pedal to decelerate to ensure an appropri-
ate vehicle− to−vehicle distance.
If you are getting closer to the vehicle
ahead at a relatively higher speed than
that of the vehicle ahead or if engine
braking cannot be applied properly, brak-
ing control is automatically activated. At
this time, the display flashes.

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Braking control is operating only when the
vehicle−to −vehicle distance control mode
is selected and your vehicle speed ex-
ceeds about 40 km/h (25 mph). If the
speed decreases below about 40 km/h (25
mph), braking control will cease, requiring
the manual application of brakes.
CAUTION
Braking control will not ensure that
your vehicle will reduce speed ap-
propriately. You must depress the
brake pedal to slow down, ensuring
collision avoidance or that sufficient
vehicletovehicle distance is main-
tained.
APPROACH WARNING
While you are cruising in the vehicle −to −
vehicle distance control mode, if the ve-
hicle ahead decelerates abruptly or if
another vehicle cuts in ahead of you, in-
adequate braking will make your vehicle
become closer to the vehicle ahead of you
and the display will flash and beep.
CAUTION
If the display flashes and beeps,
you must depress the brake pedal
to slow down to avoid a collision
or maintain sufficient vehicletove-
hicle distance.
In the following conditions, the ap-
proach warning may not turn on
even if the vehicle drives closer to
the vehicle ahead, and an accident
may occur:
Your vehicle and the vehicle ahead
are cruising at almost the same
speed.
The vehicle ahead is cruising at a
faster speed than yours. (The dis-
tance between the vehicles will be-
come longer.)
The vehicle ahead is at a stop or
driving very slowly. Pay special
attention to a very slow vehicle at
the end of the line in heavy traffic
or at a tollgate.
The speed has just been set.
The accelerator pedal is depressed
or has just been released.
LASER RADAR SENSOR
The laser radar sensor is used for ve-
hicletovehicle distance control cruis-
ing.
If dirt is on the sensor glass, the
dynamic laser cruise control function is
automatically cancelled and a warning
code appears on the display. (See
“VEHICLETOVEHICLE DISTANCE
CONTROL MODE FAILURE WARNING”
on page 227.)
However, if the glass sensor is covered
with icicle or any substance, dirt may
not be detected.

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Before driving in the vehicletovehicle
distance control mode, make sure the
radar sensor glass is clean.
This product is a class I laser product
complied with 21 C.F.R part 1040.10
and 1040.11.
CAUTION
To ensure that dynamic laser cruise
control will function properly while
driving, observe the following:
Always keep the laser radar sensor
glass clean. When cleaning, use a
soft cloth and be careful not to
damage the sensor.
Avoid strong impacts around the la-
ser radar sensor. An incorrect laser
radar sensor alignment will result in
system malfunction. A special de-
vice is required to adjust the laser
radar sensor alignment. Be sure to
have the sensor adjusted by your
Toyota dealer.
Do not affix a sticker (including a
transparent sticker) or attach an ac-
cessory around the laser radar sen-
sor.
VEHICLETOVEHICLE DISTANCE
CONTROL MODE FAILURE WARNING
If there is trouble somewhere in the dy-
namic laser cruise control while the ve-
hicle−to −vehicle distance control mode is
on, the master warning light comes on
and the alarm sounds, and one of the
warning codes “E1”, “E2” or “E3” will ap-
pear on the display. Dynamic laser cruise
control is automatically cancelled.
If “E3” appears on the display, the
“CRUISE” indicator light in the instrument
cluster also flashes. If “E1” appears on the display,
the sys-
tem cannot easily measure the vehicle −to −
vehicle distance because of a dirty laser
radar sensor glass while the dynamic la-
ser cruise control is on.
If this code appears, clean the sensor
glass with a soft cloth and try setting the
preset speed again. If the dirt is removed
without cleaning, the system will automati-
cally enter the ready mode.
If the system does not enter the ready
mode even after cleaning or the code re-
mains on the display, the system might be
malfunctioning. Although there is no prob-
lem to continue driving, please contact
your Toyota dealer.
CAUTION
Always keep the sensor glass and
never allow it to be covered with
icicle or any substance, so it can de-
tect the vehicle in front.

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If “E2” appears on the display, the sys-
tem cannot easily measure the vehicle −to −
vehicle distance because of the following
conditions:
The wipers are operating at high or low
speeds
Direct sunlight from the front
It is difficult to make a measurement
because of bad weather (such as rainy,
foggy, or snowy weather)
In the following cases, dynamic laser
cruise control switches to the ready mode:
The wipers are stopped or are
switched to intermittent operation.
No direct sunlight from the front
In the above conditions, push the lever up
in the “+ RES” direction and release it.
Dynamic laser cruise control will be re-
stored. If the setting operation cannot be
performed or if the warning code still ap-
pears even after the weather clears, the
system might have malfuncti oned. Al-
though there is no problem to continue
driving, contact your Toyota dealer. If “E3” appears on the display,
a system
malfunction has been detected.
If this code appears, stop your vehicle in
a safe place, turn the ignition off, and
then restart it to reset the system. If the
setting still cannot be made or the same
code appears again, the system might
have malfunctioned. Although there is no
problem to continue driving, contact your
Toyota dealer. The conventional cruise control mode is
designed to maintain a set cruising
speed without requiring the driver to
operate the accelerator. Cruising speed
can be set to any speed above 45 km/h
(28 mph).
Within the limits of the engine’s capabili-
ties, cruising speed can be maintained up
or down grades. However, changes in ve-
hicle speed may occur on steeper grades.
CAUTION
In the conventional cruise control
mode, the approach warning does
not activate and no alarm will
sound even if you are too close to
the vehicle ahead, as neither the
presence of the vehicle ahead nor
the vehicletovehicle distance is
detected. Pay special attention to
the distance between your vehicle
and the vehicle ahead. Always con-
firm the setting in the display.
—Conventional (fixed speed)
cruise control mode

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Do not use the conventional mode
in the following conditions, or seri-
ous injury or death could result:
To help maintain maximum control
of your vehicle, do not use conven-
tional cruise control mode when us-
ing dynamic laser cruise control
while driving in heavy or varying
traffic, or on slippery (rainy, icy or
snowcovered) or winding roads.
Avoid vehicle speed increasing
when driving downhill. If the vehicle
speed is too fast in relation to the
preset speed in the conventional
cruise control mode, cancel the
conventional cruise control mode
and then downshift the transmis-
sion to use engine braking to slow
down.
TURNING THE SYSTEM ON AND OFF
To turn the conventional cruise control
mode on, press the “ON−OFF” button. The
“CRUISE” and “READY” indicator lights on
the instrument panel will come on. Push
the lever in the “MODE” direction for lon-
ger than 1 second to change to conven-
tional cruise control mode. The indicator
on the instrument panel is as shown. You
can now set the cruising speed. Pressing
the “ON −OFF” button again turns the sys-
tem off.
When the system is turned off, cruising
speed must be reset when the convention-
al cruise control mode is turned on again. However, once the vehicle
−to −vehicle dis-
tance control mode activates and is used,
it cannot be changed to the conventional
cruise control mode using the above op-
eration. To change the mode, press the
“ON −OFF” button to turn the system off
and then press it again to turn it on. Next
push the lever in the “MODE” direction for
longer than about 1 second.
To change to the vehicle− to−vehicle dis-
tance control mode from the conventional
cruise control mode, push the lever in the
“MODE” direction for longer than about 1
second.
CAUTION
To avoid accidentally engaging the
cruise control, turn the system off
when it is not in use. Make sure the
“CRUISE” indicator light is off.

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SETTING THE CRUISING SPEED
The transmission must be in “D” or “4”
before you set the cruising speed.
Bring your vehicle to the desired speed,
push the lever down in the “− SET” direc-
tion and release it. This sets the vehicle
at that speed and the display shows the
preset speed. You can now take your foot
off the accelerator pedal.
If you need to accelerate—for example,
when passing—depress the accelerator
pedal enough for the vehicle to exceed
the preset speed. When you release the
accelerator pedal, the vehicle will return to
the speed set prior to acceleration. You cannot set a desired speed if the
master warning light comes on, the alarm
sounds and the display indicates the
warning code “E3”. If this code appears
on the display, see “CONVENTIONAL
CRUISE CONTROL MODE FAILURE
WARNING” on page 231.
CANCELLING THE CONVENTIONAL
CRUISE CONTROL MODE
The conventional cruise control mode may
be temporarily cancelled by the driver or
by the system itself under certain circum-
stances. Temporary cancellation allows the
set cruising speed to remain in memory.
The conventional cruise control mode can
be temporarily cancelled by doing the fol-
lowing:
Pulling the lever in the “CANCEL” di-
rection and releasing it
Depressing the brake pedal
Under certain circumstances, the conven-
tional cruise control mode is temporarily
cancelled:
When vehicle speed falls below 40
km/h (25 mph)
When vehicle stability control is acti-
vated When vehicle speed drops 16 km/h (10
mph) below the set speed, the convention-
al cruise control mode is cancelled and
the set speed is erased from memory.
The “CRUISE” indicator light remains on
to indicate that the system is still in op-
eration.
To turn the system off, press the “ON
−
OFF” button. Make sure the “CRUISE” in-
dicator light is off.
If the conventional cruise control mode
automatically cancels out other than for
the above cases, have your vehicle
checked by your Toyota dealer at the ear-
liest opportunity.
RESUMING THE CONVENTIONAL
CRUISE CONTROL MODE
If the conventional cruise control mode is
temporarily cancelled, the cruising speed
can be resumed by pushing the lever up
in the “+ RES” direction.
Vehicle speed must be above 40 km/h (25
mph).

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RESETTING TO A FASTER SPEED
Push the lever up in the “+ RES” direction
and hold it. Release the lever when the
desired speed is attained. While the lever
is held up, the vehicle will gradually gain
speed.
When the difference between the actual
vehicle speed and the set speed is less
than 5 km/h (3 mph), the set speed can
be increased 1.6 km/h (1 mph) each time
by pushing the lever up in the “+ RES”
direction quickly within 0.6 seconds.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
lever down in the “− SET” direction.RESETTING TO A SLOWER SPEED
Push the lever down in the “
− SET” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held down, the vehicle speed will
gradually decrease.
When the difference between the actual
vehicle speed and the set speed is less
than 5 km/h (3 mph), the set speed can
be lowered 1.6 km/h (1 mph) each time
by pushing the lever down in the “ − SET”
direction quickly within 0.6 seconds.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
lever down in the “− SET” direction.
Even if you downshift from “D” to “4” in
the conventional cruise control mode, en-
gine braking will not be enabled because
this mode is not cancelled. To decrease
the vehicle’s speed, reset to a slower
speed with the cruise control lever or de-
press the brake pedal. If you use the
brake pedal, cruise control is cancelled. CONVENTIONAL CRUISE CONTROL
MODE FAILURE WARNING
If there is trouble in the conventional
cruise control mode, the “CRUISE” indica-
tor light in the instrument cluster flashes,
the master warning light comes on and
the alarm sounds, the warning code “E3”
will appear on the display.
If a system malfunction is detected when
the conventional cruise control mode is in
the ready mode or operating, the master
warning light comes on, an alarm sounds
and the above code appears.
If this code appears, press the “ON
−OFF”
button to turn the system off and then
push it again to turn it on. If the setting
still cannot be made or the same code
appears again, the system might have
malfunctioned. Although there is no prob-
lem to continue driving, please contact
your Toyota dealer.

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