2006 TOYOTA SIENNA ignition

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The vehicle stability control system
helps provide integrated control of the
systems such as an antilock brake
system, brake assist system, traction
control, engine control, etc. This sys-
tem automatically controls the brakes
and engine to help prevent the vehicle
from skidding when cornering on a slip-
pery road surface or operating steering
wheel abruptly.
This system activates when the vehicle
speed is about more than 15 km/h (9
mph).
You may hear a sound in the engine
compartment for a few seconds just after
the vehicle begins to move. This means
that the system is in the self−check mode,
but does not indicate a malfunction.CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the vehicle stability control sys-
tem is operating, you must always
drive carefully and attentively to
avoid serious injury. Reckless driv-
ing will result in an unexpected ac-
cident. If the slip indicator light
flashes, an alarm sounds, special
care should be taken while driving.
Only use tires of specified size. The
size, manufacturer, brand and tread
pattern for all 4 tires should be the
same. If you use the tires other
than specified, or different type or
size, the vehicle stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 474 in Section 72.)
If the vehicle is going to skid during driv-
ing, the slip indicator light blinks and an
alarm sounds intermittently. Special care
should be taken while driving.
The slip indicator light comes on for a few
seconds when the ignition key is turned
to “ON”. If the indicator light does not
come on when the ignition is turned on,
contact your Toyota dealer.
Vehicle stability control
system

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“VSC” warning light
This light warns that there is a problem
somewhere in the vehicle stability control
system or the traction control system.
The light will come on when the ignition
key is turned to “ON” and will go off after
a few seconds.
If the light comes on while driving, the
system does not work. However, as con-
ventional braking operates when applied,
there is no problem to continue your driv-
ing.In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.
Tw o −wheel drive models only—The “TRAC
OFF” indicator light will come on when the
“VSC” warning light comes on even if the
“TRAC OFF” switch is not pushed. The tire pressure warning system is de-
signed to provide warning when tire
inflation pressure of any one of the
tires is critically low while the vehicle
is moving. The low tire pressure warn-
ing light comes on to inform you that
such low tire pressure may hamper
driving.
This system is not designed to operate
when the vehicle is stopped. Therefore,
check the tire inflation pressure regularly.
The recommended cold tire inflation pres-
sure, tire size and the vehicle capacity
weight are on the tire and loading informa-
tion label. (For instructions, see “Checking
tire inflation pressure” on page 471 in
Section 7
−2.)
Installed tires should be of the specified
size. They should be of the same size
and construction. If tires other than the
specified size are used, or if tires of dif-
ferent sizes or constructions are mixed,
the tire pressure warning system will not
function properly.
Tire pressure warning system

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LOW TIRE PRESSURE WARNING LIGHT
This light comes on when the ignition key
is turned to the “ON” position. It goes off
after a few seconds. This indicates that
the tire pressure warning system is func-
tioning properly.
If the low tire pressure warning light
comes on or blinks while driving, do
the following.
If the warning light comes on:
Vehicles with standard tires—1. Adjust the tire inflation pressure to the specified level as soon as pos-
sible. (See “Tires” on page 501 in
Section 8.) 2. Vehicles with vehicle stability control
system—Push the tire pressure warn-
ing system reset switch for a few
seconds and make sure the warning
light goes off.
Vehicles without vehicle stability control
system—Once the ignition switch is turned
off, the warning light also goes off. If the
light comes on again when the vehicle is
started after adjusting the tire inflation
pressure to the specified level, have the
tire pressure warning system checked at
your Toyota dealer.
Vehicles with vehicle stability control sys-
tem—If the light remains on after the re-
set switch has been pushed, have the tire
pressure warning system checked at your
Toyota dealer.
If you have a flat tire, replace it with the
spare tire. For details, see “If you have
a flat tire” on page 421 in Section 4.
Vehicles with runflat tires—
1. Decelerate at a speed below 90 km/h (55 mph), then adjust the tire pres-
sure to the specified level as soon
as possible. Do not drive more than
160 km (100 miles). 2. Vehicles with vehicle stability control
system—Push the tire pressure warn-
ing system reset switch for a few
seconds and make sure the warning
light goes off.
When the tire inflation pressure is be-
low 140 kPa (1.4 kgf/cm2 or bar, 20
psi), consult your Toyota dealer. If the
tire is flat or the tire inflation pressure
is below 100 kPa (1.0 kgf/cm
2 or bar,
15 psi), the tire must be replaced. Do
not use the repaired tire.
When the tire inflation pressure is 140
kPa (1.4 kgf/cm2 or bar, 20 psi) or
more, adjust it to specified level. (See
“Tires” on page 501 in Section 8.)
Vehicles without vehicle stability control
system—Once the ignition switch is turned
off, the warning light also goes off. If the
light comes on again when the vehicle is
started after adjusting the tire pressure to
the specified level, have the tire pressure
warning system checked at your Toyota
dealer.
Vehicles with vehicle stability control sys-
tem—If the light remains on after the re-
set switch has been pushed, have the tire
pressure warning system checked at your
Toyota dealer.

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Note: The tire pressure warning sys-
tem on your vehicle will warn you
when one of your tires is significantly
underinflated and when some com-
binations of your tires are significant-
ly underinflated. However, there are
other combinations of significantly
underinflated tires for which your
tire pressure warning system may not
warm you. These other combinations
are relatively common, accounting for
approximately half the instances in
which vehicles have significantly un-
derinflated tires. For example, your
system may not warm you when both
tires on the same side or on the
same axle of your vehicle are signifi-
cantly underinflated. It is particularly
important, therefore, for you to check
the tire pressure in all of your tires
regularly and maintain proper pres-
sure.
TIRE PRESSURE WARNING SYSTEM
RESET SWITCH
The tire pressure warning system need
to be initialized in the following condi-
tions:
When the low tire pressure warning
light blinks twice every second
After replacing or rotating tires or
wheels
When initializing the system, the pres-
ent tire condition is stored as a stan-
dard. To initialize the system, perform the fol-
lowing:
1. Park the vehicle at a safe place and apply the parking brake. Stop the en-
gine.
2. Adjust the pressure of all the installed tires to the specified level. (See “Tires”
on page 501 in Section 8.)
3. Turn the ignition key to “ON”. Vehicles with vehicle stability control
system only—If the low tire pressure
warning light comes on, push the reset
switch for a few seconds and make
sure the warning light goes off.
4. Push and hold the reset switch until the low tire pressure warning light
blinks three times.
Vehicles without vehicle stability control
system—Initialization is completed after
driving at the speeds of 30 km/h (19 mph)
or over for about 8 hours total, when the
tire pressure warning system detects the
normal tire pressure.

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TURNING THE SYSTEM ON AND OFF
To turn the cruise control on, press the
“ON−OFF” button. The “CRUISE” indicator
light on the instrument panel will come on
to indicate that the cruise control is opera-
tional. Pressing the “ON −OFF” button
again turns the system off.
When the system is turned off, cruising
speed must be reset when the cruise con-
trol is turned on again.
When the ignition is turned off, the system
is also automatically turned off. To use
cruise control again, press the “ON −OFF”
button again to turn it on.
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.
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. If the speed is not satisfac-
tory, tap the lever up for a faster speed,
or tap it down for a slower speed. Each
tap changes the set speed by 1.6 km/h
(1.0 mph). You can now take your foot off
the accelerator pedal.

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TURNING THE SYSTEM ON AND OFF
To turn the dynamic laser cruise control
on, press the “ON−OFF” button. The
“CRUISE” and “READY” indicator lights on
the instrument panel will come on to indi-
cate that the vehicle− to−vehicle distance
control mode is operational. Pressing the
“ON −OFF” button again turns the system
off.
When the system is turned off, cruising
speed and vehicle −to −vehicle distance
must be reset when the vehicle −to −vehicle
distance control mode is turned on again.
When the ignition is turned off, the system
is also automatically turned off. To use
dynamic laser cruise control again, press
the “ON −OFF” button again to turn it on. When the ignition is turned off, all the
preset data is cleared. When you use the
dynamic laser cruise control again, you
need to reset the data.
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.
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. At this time, the display
indicates settings such as the preset ve-
hicle speed, whether a vehicle is present
ahead and selected vehicle −to −vehicle dis-
tance. If there is no vehicle detected
ahead, the display does not indicate the
vehicle ahead. You can now take your foot
off the accelerator pedal.

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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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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