2010 TOYOTA SIENNA ECU

494 4-3. Do-it-yourself maintenance
CAUTION
■Replacing light bulbs
●Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
● Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
● Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
● Do not attempt to take apart or repair the low beam headlight bulbs, con-
nectors, power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
■ Discharge headlights
●Contact your Toyota dealer before replacing discharge headlights (includ-
ing light bulbs).
● Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result
in serious injury or death by electric shock.
■ To prevent damage or fire
Make sure bulbs are fully seated and locked.
NOTICE
■When installing the back door trim
To prevent damage, be careful not to pinch any of the wire harnesses or
connectors with the back door trim.

506 5-2. Steps to take in an emergency
(U.S.A.)
(Canada) “ABS” warning light
Indicates a malfunction in:
•ABS; or
• The brake assist system.
“VSC” warning light
Indicates a malfunction in the VSC system or TRAC sys-
tem.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
Warning lightWarning light/Details

5
When trouble arises
525
5-2. Steps to take in an emergency
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to
the vehicle suddenly falling off the jack.
●Do not use the tire jack for any pu
rpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes wi th this vehicle for replacing a flat
tire.
Do not use it on other vehicles, and do not use other tire jacks for
replacing tires on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported
by the jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a hei ght greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one
working on or near the vehicle will be injured.

528 5-2. Steps to take in an emergency
NOTICE
■When loosening or tightening the spare tire clamp bolt (type A
only)
Do not use an impact wrench. Use the adapter socket and jack handle.
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair.
■Be careful when driving over bumps with the compact spare tire
installed on the vehicle
The vehicle becomes lower when driving with the compact spare tire
compared to when drivin g with standard tires. Be careful when driving
over uneven road surfaces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving
performance.
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact your Toyota dealer as the tire pressure
warning valve and transmitter may be damaged if not handled correctly.
■To avoid damaging the tire pressure warning valves and transmit-
ters
Do not use liquid sealants on flat tires.
■After taking out or stowing the spare tire (type A only)
Make sure to secure the tire carrier by tightening the clamp bolt to pre-
vent the holding bracket from hitting the under body of the vehicle during
driving.
■Using the tire carrier
●As the tire carrier is designed for use with the compact spare tire, it
cannot be used with standard tires.
●If the spare tire is flat, do not use th e tire carrier, as the tire may not be
held securely.

564 6-1. Specifications
*: Table 1  Occupant loading and distri bution for vehicle normal load
for various designated seating capacities
Tire related termMeaning
Tread That portion of a tire that comes into contact
with the road
Tread rib A tread section running circumferentially
around a tire
Tread separation Pulling away of the tread from the tire carcass
Treadwear indicators
(TWI) The projections within the principal grooves
designed to give a visual indication of the
degrees of wear of the tread
Wheel-holding fixture The fixture used to hold the wheel and tire
assembly securely
during testing
Designated seating
capacity, Number of occupantsVehicle normal load,
Number of occupantsOccupant distribution in a normally loaded vehi- cle
2 through 4 2 2 in front
5 through 10 3 2 in front, 1 in second
seat
11 through 15 5 2 in front, 1 in second
seat, 1 in third seat, 1
in fourth seat
16 through 20 7 2 in front, 2 in second
seat, 2 in third seat, 1
in fourth seat

571
7
For owners
Seat belt instructions for Canadian owners (in French)
The following is a French explanation of seat belt instructions
extracted from the seat belt section in this manual.
See the seat belt section for more detailed seat belt instructions in
English.
Utilisation correcte des ceintures de sécurité
●Tendez la sangle diagonale de
sorte qu'elle couvre
complètement l'épaule, sans
entrer en contact avec le cou
ou glisser de l'épaule.
● Placez la sangle abdominale
le plus bas possible sur les
hanches.
● Réglez la position du dossier
de siège. Asseyez-vous le dos
le plus droit possible et calez-
vous bien dans le siège.
● Ne vrillez pas la ceinture de
sécurité.

572
Guide confort de ceinture de sécurité (siège extérieur de la troisième rangée)
Si la sangle diagonale gêne la
personne au niveau du cou,
utilisez le guide confort de la
ceinture de sécurité.
AT T E N T I O N
■Lorsque vous utilisez la ceinture de sécurité du siège central de la
troisième rangée
N'utilisez pas la ceinture de sécurité du
siège central de la troisième rangée avec
l'une ou l'autre des boucles
déverrouillées. Si une seule des boucles
est verrouillée, ceci peut entraîner des
blessures graves, voire mortelles en cas
de freinage brusque ou de collision.

573
7
For owners
Entretien et soin
■Ceintures de sécurité
Nettoyez avec un chiffon ou une éponge humectée d'eau savonneuse tiède.
Profitez de l'occasion pour vérifier régulièrement que les ceintures ne sont
pas effilochées, entaillées, ou ne paraissent pas exagérément usées.
AT T E N T I O N
■Détérioration et usure des ceintures de sécurité
Inspectez les ceintures de sécurité périodiquement. Contrôlez qu'elles ne
sont pas entaillées, effilochées, et que leurs ancrages ne sont pas
desserrés. N'utilisez pas une ceinture de sécurité défectueuse avant qu'elle
ne soit remplacée. Une ceinture de sécurité défectueuse n'apporte aucune
garantie de protection de l'occupant en cas d'accident.