check engine TOYOTA SIENNA 2008 XL20 / 2.G Owners Manual

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Tires and loading on yourTo 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 446 and 523.
Leak detection pump
This pump performs fuel evaporation leakage check. This
check is done approximately five hours after the engine is
turned off. So you may hear sound coming from under the
floor around the driver ’s seat for several minutes. It does
not indicate a malfunction.
Scrapping of your Toyota
The SRS airbag and seat belt pretensioner devices in your
Toyota contain explosive chemicals. If the vehicle is
scrapped with the airbags and pretensioners left as they
are, this may cause an accident such as fire. Be sure to
have the systems of the SRS airbag and seat belt preten-
sioner removed and disposed of by the qualified service
shop or by your Toyota dealer before you dispose of your
vehicle.
Perchlorate Material
Special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate.
These components may include airbag, seat belt preten-
sioners, and wireless remote control batteries.

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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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The system will automatically be set after
30 seconds. When the system is set, the
indicator light will start flashing again.4. After making sure the indicator light starts flashing, you may leave the ve-
hicle.
Never leave anyone in the vehicle when
you set the system, because unlocking
from the inside will activate the system.
CANCELING THE SYSTEM
The system can be canceled by the fol-
lowing ways:
Any of the side doors or the back door
is unlocked with the key or wireless
remote control transmitter.
Turn the engine switch to the “ON”
position.
If the parking lights and tail lights come
on for 2 seconds when the system is
canceled, the system has been alarmed.
Check to see if there is any abnormality
with your vehicle. WHEN THE SYSTEM IS SET
Activating the system
The system will sound the alarm under
the following conditions:
If any of the side doors or back door
is unlocked or opened without the key
or wireless remote control transmitter,
or if the hood is forcibly opened.
If the battery terminal is disconnected
and then reconnected.
If the ignition is hotwired.
The indicator light will come on when the
system is activated.
If the alarm has been activated and any
of the side doors or back door is un-
locked, all the side doors and back door
will re −lock automatically.
After one minute, the alarm will automati-
cally stop and the indicator light will starts
flashing again.
Reactivating the system
Once set, the system is automatically re-
set after the alarm stopped automatically
after one minute.
The alarm will activate again under the
same circumstances described in
“Activating the system”. Stopping the alarm
The alarm will be stopped by the following
these ways:
Unlock any of the side doors or the
back door with the key or wireless re-
mote control transmitter.
Turn the engine switch from the
“LOCK” to “ON” position.
These ways cancel the system at the
same time.
If the battery becomes discharged due
to the vehicle being unused for a long
time, etc., when the battery is recharged
or replaced, the system will give the
alarm. If this happens, immediately unlock
any of the side doors or the back door
with the key or the wireless remote con-
trol transmitter, and the alarm will stop.

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TESTING THE SYSTEM1. Open all the windows.
2. Set the system as described above. All the side doors and back door should
be locked with the key or wireless re-
mote control transmitter. Be sure to
wait until the indicator light starts flash-
ing.
3. Unlock any side door from the inside. The system should activate the alarm.
4. Stop the alarm as described above.
5. Repeat this operation for the other doors and hood. When testing the
hood, also check that the system is
activated when the battery terminal is
disconnected and then reconnected.
If the system does not work properly,
have it checked by your Toyota dealer.
This indicates that the fuel filler door
is on the left side of your vehicle.1. To open the fuel filler door, pull the lever up.
When refueling, turn off the engine.
CAUTION
Do not smoke, cause sparks or al-
low open flames when refueling.
The fumes are flammable.
When opening the cap, do not re-
move the cap quickly. In hot weath-
er, fuel under pressure could cause
injury by spraying out of the filler
neck if the cap is suddenly re-
moved.
Fuel tank cap

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The roof will fully close automatically. To
stop the roof partway, push the switch on
either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will close while the
switch is being pushed and stop when
released.
Tilting operation—
To tilt up: Push the switch on the “TILT
UP” side.
The roof will fully tilt up automatically. To
stop the roof partway, push the switch on
either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will tilt up while the
switch is being pushed and stop when
released.
To tilt down: Push the switch on the
“SLIDE OPEN” side.
The roof will fully tilt down automatically.
To stop the roof partway, push the switch
on either the “SLIDE OPEN” or “TILT UP”
side quickly.
When you quickly push and release the
switch, the moon roof will tilt down while
the switch is being pushed and stop when
released.Key off operation:
If both front doors are
closed, it works for 43 seconds even after
the engine switch is turned off. It stops
working when either front door is opened.
Jam protection function:
If something gets caught between the
moon roof and frame during slide clos-
ing operation, the moon roof stops and
opens half way, and the deflector stops
and raises fully.
If something gets caught between the
moon roof and frame during tilting
down operation, the moon roof stops
and opens fully.
If the moon roof receives a strong impact,
this function may work even if nothing is
caught. Make sure that the moon roof opens and
closes automatically. If the moon roof can-
not be operated properly, have it checked
by your Toyota dealer.
CAUTION
To avoid death or serious injury, you
must do the following.
While the vehicle is moving, always
keep the heads, hands and other
parts of the bodies of all occupants
away from the roof opening. Other-
wise, they could be seriously in-
jured if the vehicle stops suddenly
or if the vehicle is involved in an
accident.
Before you close the moon roof,
always make sure there is nobody
around the moon roof. You must
also make sure nobody places his
or her head, hands and other parts
of the body in the roof opening. If
someone’s neck, head or hands get
caught in the closing roof, it could
result in death or serious injury.
When anyone closes the moon roof,
first make sure it is safe to do so.

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NOTICE
Do not put unevenly weighed ob-
jects on the seat and do not stick
sharp objects (needles, nails, etc.)
into the seat.
 When cleaning the seats, do not
use organic substances (paint thin-
ner, benzine, alcohol, gasoline,
etc.). They may damage the heater
and seat surface.
 To prevent the battery from being
discharged, turn the switch off
when the engine is not running.
Toyota strongly urges that the driver and
passengers in the vehicle be properly re-
strained at all times with the seat belts
provided. Failure to do so could increase
the chance of injury and/or the severity of
injury in accidents.
The seat belts provided for your vehicle
are designed for people of adult size,
large enough to properly wear them.
Child. Use a child restraint system ap-
propriate for the child until the child be-
comes large enough to properly wear the
vehicle’s seat belts. See “Child restraint”
on page 139 in this Section for details.
If a child is too large for a child restraint
system, the child s hould sit in the rear
seat and must be restrained using the
vehicle’s seat belt. According to accident
statistics, the child is safer when properly
restrained in the rear seat than in the
front seat.
If a child must sit in the front seat, the
seat belts should be worn properly. If an
accident occurs and the seat belts are not
worn properly, the force of the rapid infla-
tion of the airbag may cause death or
serious injury to the child. Do not allow any children to stand up or
kneel on either rear or front seats. An
unrestrained child could suffer serious in-
jury or death during emergency braking or
a collision. Also, do not let the child sit
on your lap. Holding a child in your arms
does not provide sufficient restraint.
Pregnant woman.
Toyota recommends the
use of a seat belt. Ask your doctor for
specific recommendations. The lap belt
should be worn securely and as low as
possible over the hips and not on the
waist.
Injured person. Toyota recommends the
use of a seat belt. Depending on the inju-
ry, first check with your doctor for specific
recommendations.
Seat belts—
—Seat belt precautions

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(a) Brake System Warning Light andBuzzer
This light comes on in the following cases
when the engine switch is in the “ON”
position.
When the parking brake is applied...
This light comes on for a few seconds
when the engine switch is turned to the
“ON” position even after the parking brake
is released.
If the vehicle speed rises above 5 km/h
(3 mph) with the parking brake applied, a
buzzer sounds.
When the brake fluid level is low...
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
Have your vehicle checked at your
Toyota dealer in the following case:
The light does not come on even if the
parking brake is applied when the en-
gine switch is in the “ON” position.
The light does not come on initially
even if the engine switch is turned on
with the parking brake released. A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If either of the following conditions
occurs, immediately stop your vehicle
at a safe place and contact your
Toyota dealer.
The light does not turn off even
after the parking brake is released
while the engine is running.
In this case, the brakes may not
work properly and your stopping
distance will become longer. De-
press the brake pedal firmly and
bring the vehicle to an immediate
stop.
The brake system warning light re-
mains on together with the “ABS”
warning light.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely un-
stable during braking.
(b) Driver’s Seat Belt Reminder Light
and Buzzer
The light and buzzer act as a reminder to
buckle up the driver’s seat belt.
Once the engine switch is turned to “ON”,
the reminder light flashes and buzzer
sounds if the driver ’s seat belt is not fas-
tened. Unless the driver fastens the belt,
the light continues flashing and the buzzer
sounds for about 6 seconds.
If the vehicle speed rises above 20 km/h
(12 mph) with the seat belt unfastened,
the buzzer will sound for about 10 sec-
onds. Then, if the seat belt is still unfas-
tened, the buzzer will sound in a different
tone for 20 seconds. Even if the vehicle
speed drops below 20 km/h (12 mph), the
buzzer will continue to sound. To stop the
buzzer, fasten the seat belt. If the buzzer
still sounds, make sure the front passen-
ger ’s seat belt is fastened.

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(c) Front Passenger ’s Seat Belt Re-minder Light and Buzzer
The light and buzzer act as a reminder to
have the front passenger buckle up the
seat belt.
Once the engine switch is turned to “ON”,
the reminder light flashes if a passenger
sits in the front passenger seat and does
not fasten the seat belt. Unless the front
passenger fastens the belt, the light con-
tinues flashing.
If the vehicle speed rises above 20 km/h
(12 mph) with the seat belt unfastened,
the buzzer will sound for about 10 sec-
onds. Then, if the seat belt is still unfas-
tened, the buzzer will sound in a different
tone for 20 seconds. Even if the vehicle
speed drops below 20 km/h (12 mph), the
buzzer will continue to sound. To stop the
buzzer, fasten the seat belt. If the buzzer
still sounds, make sure the driver ’s seat
belt is fastened.
If luggage or other load is placed on the
front passenger seat, depending on its
weight, the reminder light may flash and
buzzer may sound. (d) Charging System Warning Light
This warning light comes on when the
engine switch is turned to the “ON” posi-
tion, and goes off when the engine is
started.
When there are problems in the charging
system while the engine is r
unning, the
warning light comes on.
NOTICE
When the charging system warning
light comes on while the engine is
running, malfunctions such as the en-
gine drive belt being broken may have
occurred. If the warning light comes
on, immediately stop the vehicle in a
safe place and contact your Toyota
dealer.
(e) Malfunction Indicator Lamp
This lamp comes on when the engine
switch is turned to the “ON” position
and goes off after the engine starts.
This means that the warning light sys-
tem is operating properly.
If the lamp remains on, or the lamp
comes on while driving, first check the
following.
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
Loose fuel tank cap
If the fuel tank cap is loose, securely
tighten it.
These cases are temporary malfunctions.
The malfunction indicator lamp will go off
after taking several driving trips.
If the lamp does not go off even after
several trips, contact your Toyota dealer
as soon as possible.

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If the fuel tank is not empty or the fuel
tank cap is not loose...
There is a problem somewhere in the
engine, emission control system, elec-
tronic throttle control system, automatic
transmission electrical system or warn-
ing light system itself.
Contact your Toyota dealer as soon as
possible to service the vehicle.
If engine speed does not increase when
the accelerator pedal is depressed, there
may be a problem somewhere in the elec-
tronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer as soon as
possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the engine switch is turned to “ACC” or
“LOCK” position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
Emissions Inspection and Maintenance
(I/M) programs
Your vehicle may not pass a state
emission inspection if the malfunction
indicator lamp remains on. Contact your
Toyota dealer to check your vehicle’s
emission control system and OBD
(On −Board Diagnostics) system before
taking your vehicle for the inspection.
For details, see “Emissions Inspection and
Maintenance (I/M) programs” on page 508
in Section 6.
(f) Low Fuel Level Warning Light
This light comes on when the fuel level
in the tank becomes nearly empty. Fill up
the tank as soon as possible.
On inclines or curves, due to the move-
ment of fuel in the tank, the low fuel level
warning light may come on earlier than
usual. (g) Low Engine Oil Pressure Warning
Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.
NOTICE
Do not drive the vehicle with the
warning light on—even for one block.
It may ruin the engine.

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(k) “VSC” Warning Light
This light warns that there is a problem
somewhere in the vehicle stability control
system or traction control system.
The light will come on when the engine
switch 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 engine switch is turned to
“ON”.
The warning light remains on after the
engine switch 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. (l) Low Tire Pressure Warning Light
This light warns that the tire pressure of
one or more of your tires (without the
spare tire) is low. The light comes on
when the engine switch is turned to the
“ON” position. It goes off after a few sec-
onds. This indicates that the tire pressure
warning system is functioning properly.
If the warning light comes on, stop your
vehicle in a safe place as soon as pos-
sible and check that the inflation pressure
of all four tires is as specified on the tire
and loading information label. (See
“Checking tire inflation pressure” on page
523 in Section 7
−2.) The light should go
off several minutes after the tire pressure
is adjusted.
If the warning light comes on after blink-
ing for 1 minute, the tire pressure warning
system may be malfunctioning. Contact
your Toyota dealer.
For details, see “Tire pressure warning
system” on page 214 in Section 1 −7. (m) Low Windshield Washer Fluid Level
Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see “Adding washer fluid” on page 539 in
Section 7 −3.)
(n) Engine Oil Replacement Reminder Light (for vehicles sold in U.S.A.)
This light acts as a reminder to replace
the engine oil.
This light will come on when the engine
switch is turned to “ON” and will go off
after about a few seconds.
When you drive for about 7200 km (4500
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the engine switch turned to the “ON”
position. If you continue driving without
replacing the engine oil, and if the dis-
tance driven exceeds 8000 km (5000
miles), the light will come on after the
engine switch is turned to “ON” position.
The light will remain on thereafter.