2008 TOYOTA SIENNA immobilizer

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Cruise control indicator light∗2 or dynamic laser
cruise control indicator light∗ 3
Automatic transmission indicator lights Headlight high beam indicator light
∗1: For details, see “Service reminder indicators and warning
buzzers” on page 191 in Section 1 −6.
∗
2: If this light flashes, see “Cruise control” on page 222 in
Section 1 −7.
∗
3: If this light flashes, see “Dynamic laser cruise control” on
page 225 in Section 1 −7.
Slip indicator light
Traction control system off indicator light
(two
−wheel drive models)
Turn signal indicator lights
Dynamic laser cruise control ready mode
indicator light
Conventional cruise control mode indicator light
Engine immobilizer/theft deterrent system
indicator light
“AIR BAG ON” indicator light
“AIR BAG OFF” indicator light
Third seat warning light∗
1
Headlight indicator light
Tail light indicator light

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Keys and Doors
Keys10
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Engine immobilizer system 13
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Wireless remote control 14
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Front doors 22
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Sliding doors 25
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Power sliding doors 28
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Back door 36
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Power back door 38
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Power windows 43
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Manual quarter windows 46
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Power quarter windows 47
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Hood 48
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Theft deterrent system 49
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Fuel tank cap 51
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Electric moon roof 53
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SECTION 1 2

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Your vehicle is supplied with two kinds
of keys.1. Master keys—These keys work in ev- ery lock.
2. Sub key—This key will not work in the glove box.
To protect items locked in the glove box
when using valet parking, leave the sub
key with the attendant.
Since the front doors and sliding doors
can be locked without a key, you should
always carry a spare master key in case
you accidentally lock your keys inside the
vehicle.KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend writing down the key num-
ber and storing it in a safe place.Your vehicle is supplied with two kinds
of keys. 1. Master keys (black)—These keys work in every lock. Your Toyota dealer will
need one of them to make a new key
with a built −in transponder chip.
2. Sub key (gray)—This key will not work in the glove box.
A transponder chip for engine immobilizer
system has been placed in the head of
the master and sub keys. These chips are
needed to enable the system to function
correctly, so be careful not to lose these
keys. If you make your own duplicate key,
you will not be able to cancel the system
or start the engine.
Keys (without engine
immobilizer system) Keys (with engine immobilizer
system)

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The engine immobilizer system is a
theft prevention system. When you in-
sert the key in the engine 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.
Never leave the keys inside the vehicle
when you leave the vehicle.The system is automatically set when the
key is removed from the engine switch.
On some models—
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 49 in this Section.)
The indicator light does not start flash-
ing when the key is removed from the
engine switch.
The indicator light flashes inconsistent-
ly.Inserting the registered key in the engine
switch automatically cancels the system,
which enables the engine to start. The
indicator light will go off.
The system is maintenance−
free.
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

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
CAUTION
After inserting the support rod into
the slot, make sure the rod supports
the hood securely from falling down
on to your head or body.
NOTICE
Be sure to return the support rod to
its clip before closing the hood. Clos-
ing the hood with the support rod up
could cause the hood to bend.
The system sounds alarm and flashes
lights when forcible entry is detected.
The alarm is triggered if any of the
side doors, back door or hood is forci-
bly unlocked or opened or the battery
terminal is disconnected and then re-
connected when the vehicle is locked.
The alarm blows the horn intermittently
and flashes the headlights, tail lights and
turn signal lights, and turns on the front
personal lights.SETTING THE SYSTEM1. Turn the engine switch to the “LOCK” position and remove it.
On some models, the indicator light will
start flashing when the key is removed
from the engine switch. (See “Engine
immobilizer system” on page 13 in this
Section for details.) 2. Have all passengers get out of the vehicle.
3. Close and lock all the side doors, back door and hood.
The indicator light will remain on when all
the side doors, back door and hood are
closed and locked.
Theft deterrent system

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
“START”—Starter motor on. The key
will return to the “ON” position when
released.
For starting tips, see page 451 in Section
3.
“ON”—Engine on and all accessories
on.
This is the normal driving position.
“ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the engine switch in the
“ACC” or “LOCK” position and open the
driver ’s door, a buzzer will remind you to
remove the key.“LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position.
You must push in the key to turn the
engine switch from “ACC” to the “LOCK”
position. The selector lever must be put
in the “P” position before pushing the key.
Vehicles with engine immobilizer system—
Once you remove the key, the engine im-
mobilizer system is automatically set. (See
“Engine immobilizer system” on page 13
in Section 1−
2.)
When starting the engine, the engine
switch may seem stuck at the “LOCK”
position. To free it, first be sure the key
is pushed all the way in, and then rock
the steering wheel slightly while turning
the key gently.
Approximately five hours after the engine
is turned off, you may hear sound coming
from under the floor around the driver ’s
seat for several minutes. This is normal
operation and does not indicate a malfunc-
tion. (See “Leak detection pump” on page
viii.)
It is not a malfunction if the needle on all
meters and gauges move slightly when the
engine switch is turned to the “ACC”,
“ON” or “START” position.
NOTICE
Do not leave the engine switch in the
“ON” position if the engine is not
running. The battery will discharge
and the ignition could be damaged.
Engine (ignition) switch

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Before making these checks, make sure
you have followed the correct starting pro-
cedure given in “How to start the engine”
on page 452 in Section 3 and that you
have sufficient fuel. If your vehicle is
equipped with the engine immobilizer sys-
tem, also check whether the other keys
will start the engine. If they work, your
key may be broken. Have the key
checked at your Toyota dealer. If none of
your keys work, there may be a malfunc-
tion in the immobilizer system. Call your
Toyota dealer. (See “Keys (with engine
immobilizer system)” on page 10 in Sec-
tion 1−2.)
If the engine is not turning over or is
turning over too slowly— 1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked, the battery
is discharged. You may try jump start-
ing. See “(c) Jump starting” on page
467 for further instructions.
If the light is O.K., but the engine still will
not start, it needs adjustment or repair.
Call a Toyota dealer or qualified repair
shop.NOTICE
Do not pull or pushstart the ve-
hicle. It may damage the vehicle or
cause a collision when the engine
starts. Also the threeway catalytic
converter may overheat and become a
fire hazard.
If the engine turns over at its normal
speed but will not start—
1. Turn the engine switch to “ACC” or “LOCK” and try starting the engine
again.
2. If the engine will not start, the engine may be flooded because of repeated
cranking. See “(b) Starting a flooded
engine” on page 466 for further instruc-
tions.
3. If the engine still will not start, it needs adjustment or repair. Call a Toyota
dealer or qualified repair shop. If the engine will not start, your engine
may be flooded because of repeated
cranking.
If this happens, turn the engine switch to
“START” with the accelerator pedal fully
depressed. Keep the engine switch and
accelerator pedal in these positions for 15
seconds and release them. Then try start-
ing the engine with your foot off the accel-
erator pedal.
If the engine does not start after 15 se-
conds of cranking, release the engine
switch, wait a few minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call a Toyota dealer
or qualified repair shop for assistance.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
If your vehicle will not start—
(a) Simple checks
(b) Starting a flooded engine

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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
NOTICE
Never tow a vehicle with an automatic
transmission from the rear with the
front wheels on the ground, as this
may cause serious damage to the
transmission.
(b) Using flat bed truck
Allwheel drive models—
(a) Towing with wheel lift type truck
Use a towing dolly under the wheels not
lifted by the truck.
(b) Using flat bed truck
(c) Towing with slingtype truck
All models—
(c) Towing with sling type truck
NOTICE
Do not tow with sling type truck, ei-
ther from the front or rear. This may
cause body damage.
You can purchase a new key at your
Toyota dealer if you can give them the
key number. If your vehicle is equipped
with the engine immobilizer system, the
dealer will also need your master key.
Vehicles with engine immobilizer system—
Even if you lose only one key, contact
your Toyota dealer to make a new key. If
you lose all your master keys, you cannot
make new keys; the whole engine immobi-
lizer system must be replaced.
See the suggestion given in “Keys” on
page 10 in Section 1 −2.
If your keys are locked in the vehicle and
you cannot get a duplicate, many Toyota
dealers can still open the door for you,
using their special tools. If you must
break a window to get in, we suggest
breaking the smallest side window be-
cause it is the least expensive to replace.
Be extremely cautious to avoid cuts from
the glass.
If you lose your keys