Page 7 of 516

05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Spark ignition system of yourTo y o t a
The spark ignition system in your Toyota meets all require-
ments of  the Canadian Interference −Causing Equipment
Standard.
Installation of a mobile two way radio system
As the installation of a mobile two −way radio system in
your vehicle could affect electronic systems such as
multiport fuel injection system/sequential multiport fuel
injection system, electronic throttle control system, cruise
control system, dynamic laser cruise control system, anti −
lock brake system, traction control system,  vehicle stability
control system, SRS airbag system and seat belt preten-
sioner system, be sure to check with your Toyota dealer
for precautionary measures or special instructions regard-
ing installation.
Tires and loading on your To y o t a
Underinflated or overinflated tire pressure and the
excess load may result  in the deterioration of
steering ability and braking ability, leading to an
accident. Check the tire inflation pressure periodi-
cally and be sure to keep the load limits given in
this Owner ’s Manual. For details about tire inflation
pressure and load limits, see pages 398 and 471. 
     
        
        Page 11 of 516
05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
1. Headlight, turn signal and front foglight switches
2. Wiper and washer switches
3. Rear window and outside rear view mirror defogger and windshield wiper
de− icer switch
4. Emergency flasher switch
5. Audio system or rear view monitor system/navigation system including
audio system (For the navigation
system, see the separate “Navigation
System Owner ’s Manual”.)
6. Power outlet main switch
7. Engine immobilizer/theft deterrent system indicator light
8. Air conditioning controls
9. Seat heater switches or auxiliary box
10. Auxiliary box 11. Cup holder and coin holder
12. Power outlets
13. Personal light main switch
14. Ignition switch
15. “TRAC OFF” switch
16. Cruise control switch or dynamic laser cruise control switch 
     
        
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
The engine immobilizer system is a
theft prevention system. When you in-
sert the key in the ignition switch, the
transponder chip in the key’s head
transmits an electronic code to the ve-
hicle. The engine will start only when
the electronic code in the chip corre-
sponds to the registered ID code for
the vehicle.The system is automatically set when the
key is removed from the ignition switch.
The indicator light will start flashing to
show the system is set.
If any of the following indicator conditions
occurs, contact your Toyota dealer.
The indicator light stays on except
when the theft deterrent system is set-
ting or activating. (See “Theft deterrent
system” on page 48 in this Section.)
The indicator light does not start flash-
ing when the key  is removed from the
ignition switch.
The indicator light flashes inconsistent-
ly.Inserting the registered key in the ignition
switch automatically cancels the system,
which enables the engine to start. The
indicator light will go off.
For your Toyota dealer to make  you a
new key with built
−in transponder chip,
your dealer will need your key number
and master key. However, there is a limit
to the number of additional keys your
Toyota dealer can make for you.
If you make your own duplicate key,
you will not be able to cancel  the sys-
tem or start the engine.
NOTICE
Do not modify, remove or disas-
semble the engine immobilizer sys-
tem. If any unauthorized changes or
modifications are made, proper opera-
tion of the system cannot be guaran-
teed.
Engine immobilizer system 
     
        
        Page 24 of 516

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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 
     
        
        Page 25 of 516

05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
This double switch operation to unlock all
the side doors and back door  can be
changed to a single switch operation. For
details, contact your Toyota dealer.
When the unlock switch is pressed, the
front personal lights and ignition switch
light come on. The lights remains on for
about 15 seconds unless any of the side
doors or back door are opened then and
closed. (For further information, see “Front
personal lights” on page 164 and/or “Igni-
tion switch light” on page 166 in Section
1−5.)
You have 30 seconds  to open a door after
using the wireless remote unlock feature.
If a door is not opened by then, all the
side doors and back door will automatical-
ly lock again.
The timing for the automatic door lock
function can be changed. For details, con-
tact your Toyota dealer.
If the lock or unlock switch is kept
pressed in, the locking or unlocking opera-
tion is not repeated. Release the switch
and then push again. The following adjustments  can be made in
this system. For details, contact your
Toyota dealer.
Cancelling the wireless door locking or
unlocking function
Cancelling the flash of the turn signal
lights
Cancelling the beep sound
Right side power sliding door (type A)
Right side power sliding door 
(type B or C)
—Opening and closing sliding
doors 
     
        
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05 SIENNA_U (L/O 0409)
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Left side power sliding door (type C only)
Push and hold the switch of the wire-
less remote control transmitter about
one second. The power sliding door
opens and closes completely.
Right  side power  sliding door—
To open: Push the sliding door open
switch. (right side)
To close: Push the sliding door open
switch (right side) again.
Left  side power  sliding door—
To open: Push the sliding door open
switch. (left side)
To close: Push the sliding door open
switch (left side) again.Opening operation can be performed by
the switches under the following conditions
only:
The sliding door is unlocked.
The power sliding door system is on.
(The “SLIDE DOOR OFF” switch on the
instrument panel is pushed out.)
The key is not in the ignition switch.
The sliding door is between the fully
−
closed position and half −opened posi-
tion.
The sliding door  stops at  the half −opened
position when the window is opened more
than about 15 cm (6 in.).
The left side power sliding door does not
operate when the fuel filler door is
opened.
Closing operation can be performed by the
wireless remote control switches under the
following conditions only:
The power sliding door system is on.
(The “SLIDE DOOR OFF” switch on the
instrument panel is pushed out.)
The key is not in the ignition switch.
The sliding door is between the fully −
opened position and half −opened posi-
tion. The sliding door operation by  the wireless
remote control can be changed or dis-
abled. For details, contact your Toyota
dealer. 
     
        
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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Ty p e B
Ty p e C
Push and hold the back door open
switch on the wireless remote control
transmitter for about one second. The
power back door opens and closes
completely.
When closing or opening the back door,
two beeps will be heard and the turn sig-
nal lights will flash twice.
Opening operation can be performed by
the switch under the following conditions
only:
The back door is unlocked.
The power back door system is on.
(The “BACK DOOR OFF” switch on the
instrument panel is pushed out.)
The key is not in the ignition switch.
The back door  is between the fully−
closed position and half −opened posi-
tion.
Closing operation can be performed by the
switch under the following conditions only:
The power back door system is on.
(The “BACK DOOR OFF” switch on the
instrument panel is pushed out.)
The key is not in the ignition switch.
The back door  is between the fully −
opened position and half −opened posi-
tion. The back door operation by  the wireless
remote control can be changed or dis-
abled. For details, contact your Toyota
dealer.
—Opening and closing back
door (type B and C) 
     
        
        Page 28 of 516

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2005 SIENNA from Sep. ’04 Prod. (OM45431U)
Pushing and holding the alarm switch
blows the horn intermittently and
flashes the headlights, tail lights and
turns on the front personal lights.
The alarm switch is used to deter vehicle
theft when you witness anyone attempting
to break into or damage your vehicle.
The alarm will last for one minute. To stop
alarm midway, do the following:
Push any of the switch on the wireless
remote control transmitter.
Lock or unlock either front doors or
back door with the key.
Turn the ignition key from the “LOCK”
to “ON” position.The alarm does not work when the ignition
key is in the “ON” position.
This alarm function can be disabled. For
details, contact your Toyota dealer.
For replacement, use a CR2032 lithium
battery or equivalent.
CAUTION
Special care should be taken to pre-
vent small children from swallowing
the removed transmitter battery or
components.
NOTICE
When replacing the transmitter bat-
tery, be careful not to lose the com-
ponents.
 Replace only with the same or
equivalent type recommended by a
Toyota dealer.
 Dispose of used batteries according
to the local laws.
Replace the transmitter battery by follow-
ing these procedures:
—Activating alarm —Replacing battery