2005 TOYOTA SIENNA ECU

05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Ty p e C
1. Lock switch
2. Unlock switch
3. Sliding door open switch (right side)
4. Sliding door open switch (left side)
5. Back door open switch
6. Alarm switchThe 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 439 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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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Locking operation (type A)
Unlocking operation (type A)
Locking operation (type B or C)
Unlocking operation (type B or C)
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
ignition 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 ignition, 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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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Using a coin or equivalent, open thetransmitter case.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.

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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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.
LOCKING AND UNLOCKING WITH KEY
Insert the key into the keyhole and turn
it.
To lock: Turn the key forward.
To unlock: Turn the key backward.
All the side doors and back door lock and
unlock simultaneously with either front
door. In the driver ’s door lock, turning the
key once will unlock the driver’s door and
twice in succession will unlock all the
doors simultaneously.
This double key turning operation to un-
lock all the side doors and back door can
be changed to a single key turning opera-
tion. For details, contact your Toyota deal-
er. When either front door is unlocked with a
key, the front personal lights and ignition
switch light will come on and remain on
for about 15 seconds before fading out.
(For details, see “Front personal lights” on
page 164 and “Ignition switch light” on
page 166 in Section 1
−5.)
Front doors

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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
When the fuel filler door is opened, the
left side siding 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.
SLIDING DOOR CHILDPROTECTORS
Open the sliding door fully and move
the lock lever to the “LOCK” position
as shown on the label. Then close the
sliding door.
If the child−protector is locked, you cannot
open the sliding door from the inside. We
recommend using this feature whenever
small children are in the vehicle.

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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
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.

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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
To open the back door, push up the
back door opener and raise the door.
The back door can be opened when the
vehicle is stopped.
The back door can be locked or unlocked
in the following ways.
Operate the power door lock switch.
(See “Front doors” on page 22 in this
Section.)
Operate the wireless remote control.
(See “Wireless remote control” on page
14 in this Section.)
All the side doors and back door are
locked and unlocked simultaneously
with the driver ’s door. (See “Front
doors” on page 22 in this Section.)When all the side doors and back door
are unlocked simultaneously with a key,
the front personal lights and ignition
switch light will come on and remain on
for about 15 seconds before fading out.
(For details, see “Front personal lights” on
page 164 and “Ignition switch light” on
page 166 in Section 1
−5.)
If the back door opener does not operate,
see “If you cannot operate back door
opener” on page 440 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 399
in Section 2 for precautions when loading
luggage.
Back door (nonpowered)