ECU TOYOTA SIENNA 2008 XL20 / 2.G Owners Manual

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Important information about your Toyota
Occupant restraint systems
Toyota encourages you and your family to take the time to
read Section 1−3 of this Owner’s Manual carefully. In
terms of helping you understand how you can receive the
maximum benefit of the occupant restraint systems this
vehicle provides, Section 1 −3 of this Owner ’s Manual is
the most important Section for you and your family to
read.
Section 1 −3 describes the function and operation concern-
ing seats, seat belts, SRS airbags and child restraint sys-
tems of this vehicle and some potential hazards you
should be aware of. These systems work together along
with the overall structure of this vehicle in order to provide
occupant restraint in the event of a crash. The effect of
each system is enhanced when it is used properly and
together with other systems. No single occupant restraint
system can, by itself, provide you or your family with the
equal level of restraint which these systems can provide
when used together. That is why it is important for you and
your family to understand the purpose and proper use of
each of these systems and how they relate to each other.
The purpose of all occupant restraint systems is to help
reduce the possibility of death or serious injury in the
event of a collision. None of these systems, either individ-
ually or together, can ensure that there is no injury in the
event of collision. However, the more you know about
these systems and how to use them properly, the greater
your chances become of surviving an accident without
death or serious injury.
Seat belts provide the primary restraint to all occupants of
the vehicle, and every occupant of the vehicle should wear
seat belts properly at all times. Children should always be
secured in child restraint systems that are appropriate for
their age and size. SRS (Supplemental Restraint System)
airbags are, as their names imply, designed to work with,
and be supplemental to, seat belts and are not substitutes
for them. SRS airbags can be very effective in reducing
the risk of head and chest injuries by preventing contact of
the head and chest with interior portions of the vehicle.

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SRS airbag system diagnostic data
If your vehicle is equipped with a vehicle stability control
(VSC) system, its Electronic Control Unit (ECU) may con-
tain another EDR. There are a variety of driving situations
which include activating the VSC under which the VSC
EDR will record certain information. The VSC EDR may
record some or all of the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of
the 4 wheels
 Vehicle stability control system di agnostic data
The information above is intended to be used for the
purpose of improving vehicle safety performance. Unlike
general data recorders, the EDR does not record sound
data such as conversation between passengers.Toyota will not disclose the data recorded in an EDR to a
third party except when:
 An agreement from the vehicle’s owner (or the leas-
ing company for a leased vehicle) is obtained
 Officially requested by the police or other authorities
 Used as a defense for Toyota in a law suit
 Ordered by the court
However, if necessary Toyota will:
 Use the data for research on Toyota vehicle safety
performance
 Disclose the data to a third party for research pur-
poses without disclosing details of the vehicle owner,
and only when it is deemed necessary
 Disclose summarized data cleared of vehicle identifi-
cation information to a non −Toyota organization for
research purposes

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1. Lock switch
2. Unlock switch
3. Alarm switch
4. Sliding door open switch (right side)
5. Back door open switch
6. Sliding door open switch (left side)The wireless remote control system is
designed to lock or unlock all the side
doors and back door, or activate the
panic mode from a distance within
approximately 1 m (3 ft.) of the vehicle.
On some models, the system also al-
lows you to activate the theft deterrent
system from the same distance.
When you operate any switch, push it
slowly and securely.
The wireless remote control transmitter is
an electronic component. Observe the fol-
lowing instructions in order not to cause
damage to the wireless remote control
transmitter.
Do not leave the transmitter in places
where the temperature becomes high
such as on the dashboard.
Do not disassemble it.
Avoid knocking it hard against other
objects or dropping it.
Avoid putting it in water.
You can use up to 4 wireless remote con-
trol transmitters for the same vehicle.
Contact your Toyota dealer for detailed
information. If the wireless remote control transmitter
does not actuate the doors or alarm, or
operate from a normal distance:
Check for closeness to a radio trans-
mitter such as a radio station or an
airport which can interfere with normal
operation of the transmitter.
The battery may have been consumed.
Check the battery in the transmitter. To
replace the battery, see “—Replacing
battery” on page 20.
If you lose your wireless remote control
transmitter, contact your Toyota dealer as
soon as possible to avoid the possibility
of theft, or an accident. (See “If you lose
your wireless remote control transmitter”
on page 493 in Section 4.)
MADE IN U.S.A.
This complies with Part 15 of the FCC
rules. Operation is subject to the follow-
ing two conditions:
(1) This device may not cause harmful
interference, and (2) this device must
accept any interference received, includ-
ing interference that may cause unde-
sired operation.

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Locking operation (type A)
Unlocking operation (type A)
Locking operation (type B)
Unlocking operation (type B)
To lock and unlock all the doors, push
the switches of the transmitter slowly
and securely.
To lock: Push the lock switch. All the side
doors and back door are locked simulta-
neously. At this time one beep will be
heard, turn signal lights will flash once.
Check to see that the doors are securely
locked.
If any of the side doors or back door is
not securely closed, or if the key is in the
engine switch, locking cannot be per-
formed by the lock switch and a beep will
sound continuously for 10 seconds. How-
ever, if the key is in the engine switch,
a beep will not sound.
To stop the beep, close all the side doors
and back door securely or push the un-
lock switch.
The buzzer can be disabled. For details,
contact your Toyota dealer.
To unlock: Push the unlock switch once to
unlock only the driver’s door. Pushing the
switch twice within 3 seconds unlocks all
the side doors and back door simulta-
neously. Each time the unlock switch is
pushed, two beeps will be heard, turn sig-
nal lights will flash twice.
—Locking and unlocking
doors

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2. Remove the discharged transmitter bat-tery.
NOTICE
Do not bend the terminals.
3. Put in a new transmitter battery withpositive (+) side up.
Close the transmitter case securely.
NOTICE
 Make sure the positive side and
negative side of the transmitter bat-
tery are faced correctly.
 Do not replace the battery with wet
hands. Water may cause unexpected
rust.
 Do not touch or move any compo-
nents inside the transmitter, or it
may interfere with proper operation.
Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the transmitter case.
 Close the transmitter case securely.
After replacing battery, check that the
transmitter operates properly. If the trans-
mitter still does not operate properly, con-
tact your Toyota dealer.

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When stopping on a downward
slope, open the door fully while
passengers are getting on or off.
Do not pull the outside handle or
inside handle while the door is
open as the door could suddenly
close by itself causing injury.
NOTICE
Do not close the sliding door by ap-
plying the brakes. Doing so could
cause the door to be damaged.
When the fuel filler door is opened, the
left side sliding door will not open.
Close the fuel filler door securely and
then operate the sliding door.
NOTICE
Avoid forcibly opening the left side
sliding door fully when the fuel filler
door is opened. Otherwise, the fuel
filler door may be damaged.
When the sliding door window is
opened more than about 15 cm (6 in.),
the sliding door will stop at half
opened position for safety reasons.
Close the window and then operate the
sliding door.
CAUTION
Do not leave the sliding door at half
opened position because the door is
not latched at this position. If the
vehicle is stopped on a downward
slope, it may move and cause an un-
expected injury.

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CAUTION
When closing the sliding door, con-
firm safety of the area around.
Keep the heads, hands and other
parts of the bodies of all occupants
away from the sliding door. Other-
wise, the closing door may cause
death or serious injury.
When the vehicle is stopped on a
slope, the door will slide faster
when opening or closing, so be es-
pecially careful that the passengers
do not get hit or pinched by the
door.
When stopping on a downward
slope, open the door fully while
passengers are getting on or off.
Do not pull the outside handle or
inside handle while the door is
open as the door could suddenly
close by itself causing injury.
NOTICE
Do not close the sliding door by ap-
plying the brakes. Doing so could
cause the door to be damaged.
When the fuel filler door is opened, the
left side sliding door will not open.
Close the fuel filler door securely and
then operate the sliding door.
NOTICE
Avoid forcibly opening the left side
sliding door fully when the fuel filler
door is opened. Otherwise, the fuel
filler door may be damaged.
—Power sliding door cautions

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When closing the back door, the inside
strap can be used to make the reach
easier.
To close the back door, lower it and press
down on it. After closing the back door,
try pulling it up to make sure it is secure-
ly closed.
See “—Stowage precautions” on page 447
in Section 2 for precautions when loading
luggage.
CAUTION
Keep the back door closed while driv-
ing. This not only keeps the luggage
from being thrown out but also pre-
vents exhaust gases from entering
the vehicle.
NOTICE
To avoid damage to the back door
dampers, do not apply any force,
paint or let any other foreign matter
on them.
Back door closer (on some models):
When the back door has not been fully
closed, it is automatically closed com-
pletely.
CAUTION
Careful attention is needed so as
not to get your fingers trapped as
the back door automatically closes
when it has not been fully closed.
Never allow a child to operate the
back door.
NOTICE
Do not apply excessive force when
the back door closer is operating.
Otherwise, the back door closer may
be damaged.

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When all the side doors and back door
are unlocked simultaneously with a key,
the front personal lights and engine switch
light will come on and remain on for about
15 seconds before fading out. (For details,
see “Front personal lights” on page 179
and “Engine (ignition) switch light” on
page 181 in Section 1−5.)
If the back door opener does not operate,
see “If you cannot operate back door
opener” on page 494 in Section 4.
If the battery is disconnected or run
down, the back door will be automatically
locked after you reconnect, replace or re-
charge the battery. Be careful not to lock
your keys in the vehicle.
When closing the back door, the inside
strap can be used to make the reach
easier.
To close the back door, lower it and press
down on it. After closing the back door,
try pulling it up to make sure it is secure-
ly closed.
See “—Stowage precautions” on page 447
in Section 2 for precautions when loading
luggage.
CAUTION
Keep the back door closed while driv-
ing. This not only keeps the luggage
from being thrown out but also pre-
vents exhaust gases from entering
the vehicle.
NOTICE
To avoid damage to the back door
dampers, do not apply any force,
paint or let any other foreign matter
on them.

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To open the hood:1. Pull the hood lock release lever. The hood will spring up slightly.
CAUTION
Before driving, be sure that the hood
is closed and securely locked. Other-
wise, the hood may open unexpected-
ly while driving and an accident may
occur.
2. In front of the vehicle, pull up theauxiliary catch l ever and lift the
hood.3. Hold the hood open by inserting the support rod into the slot.
To insert the support rod into the slot,
move it straight up. If it is moved to the
side or toward the inside of the vehicle,
it may become detached.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. and return the support rod to its
clip—this prevents rattles. Then lower the
hood and make sure it locks into place.
If necessary, press down gently on the
front edge to lock it.
Hood