2004 TOYOTA SIENNA air condition

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“AUTO” button
For automatic operation of the rear air
conditioning, press the “AUTO” button. An
indicator light will illuminate to show that
the automatic operation mode has been
selected.
In the automatic operation mode, the air
conditioning selects the most suitable fan
speed and air flow according to the tem-
perature.
You may use manual controls if you want
to select your own settings.
Fan speed selectors
Push the button to select the fan speed
mode.
In the automatic operation mode, the fan
speed is adjusted automatically unless you
desire another fan speed mode.Temperature selectors
To increase the temperature, press the
“
 ” side. To decrease it, press the “ ”
side.
“LO” appears when you adjust to maxi-
mum cooling, and “HI” appears when you
adjust to maximum warming.
When “SYNC” appears on the rear tem-
perature display, rear controls cannot be
used. Use the controls on the front control
panel. To cancel this function, push the
“SYNC” button. For details about the
“SYNC” button, see “Front automatic air
conditioning system” on page 304 in this
Section.
The temperature display changes between
“  C” and “ F” when the unit of the outside
temperature display is changed. (For de-
tails, see “Multi −information display” on
page 316 in Section 1 −9.)
“REAR” button
To turn on the rear air conditioning system
using the front control panel, push the
button. To turn it off, push the button
again.
“OFF” button
Push the button to turn off the rear air
conditioning system.
Air flow selectors
Push the button to select the vents used
for air flow. 1. Panel— Air flows from the roof panel
vents.
2. Bilevel— Air flows from both the roof
panel vents and floor vent.
3. Floor— Air flows from the floor vent.

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Operate the multiinformation display
with the ignition switch on.
When the ignition switch is turned to
“ON”, the last previously used mode dis-
played just before the ignition switch is
turned off will appear.
When the instrument panel lights are
turned on, the brightness of the display
will be reduced.
—Before using the
multiinformation display
Indication
English/U.S.
Customary
System (E) Metric (M) Outside
temperature
F
 C Instantaneous fuel consumption/
Average fuel consumption
MPG
L/100 km Distance to empty
MI
km
“E/M” button
This button is used to switch between English/U.S. Customary System and
metric units.
Each time you push this button, the display switches. This is also linked to the front
and rear air conditioning displays. The display variations are as follows;

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The outside temperature and cruise in-
formation display indicates the follow-
ing information.1. Outside temperature
2. Average fuel consumption
3. Instantaneous fuel consumption
4. Distance to empty
5. Display off (no compass)
Every time you push the “MODE” button,
the display toggles through this informa-
tion.
During the off mode, the compass display
is also turned off.
The displayed values in the cruise infor-
mation display indicate general driving
conditions. Accuracy varies with driving
habits and road conditions.
To set the unit, push the “E/M” button
until the desired unit display appears. (At
this time, front and rear air conditioning
displays also change.) 1. Outside temperature
The outside temperature display indi-
cates the outside air temperature.
The displayed value is updated every 1
second.
The displayed temperature ranges from
− 30 C ( −22 F) up to 50 C (122 F).
If there is some abnormality in the con-
nection of the outside air temperature sen-
sor, “ −−C” (“ −−F”) will appear on the
display. If “ −−C” (“ −−F”) appears on the
display, contact your Toyota dealer.
There may be a case that “−− C” (“ −−F”)
appears momentarily when the ignition is
quickly turned to “ON”. It is normal if it
goes out soon.
2. Average fuel consumption (“AVG”)
Average fuel consumption is calculated
and displayed based on total driving
distance and total fuel consumption
with the engine running.
The displayed value is updated every 1
seconds.
To reset the calculations, return the mode
to “AVG” and push and hold the “MODE”
and “E/M” button simultaneously for 2 sec-
onds. 3. Instantaneous fuel consumption
(“INST”)
The instantaneous fuel consumption is
calculated and displayed based on dis-
tance and fuel consumption for 1 sec-
onds with the engine running.
The displayed value is updated every 2
seconds.
Note that an accurate figure may not be
shown in the following cases.
When the vehicle is stopped with the
engine running, the display will indicate
the extremely high fuel consumption.
When the vehicle is driving down a
long slope, applying the engine brake,
the display will indicate the extremely
low fuel consumption.
The calculation is reset when the ignition
switch is turned off. 4. Distance to empty (“DTE”)
The distance the vehicle can travel with
the remaining fuel is calculated and
displayed based on the quantity of re-
maining fuel and past fuel consumption.
The displayed value is updated every 1
second.

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Perform circling calibration just after
you have purchased your Toyota. And
then always perform circling calibration
after the battery has been removed, re-
placed or disconnected.
Do not perform circling calibration of
the compass in a place where the
earth’s magnetic field is subject to in-
terference by artificial magnetic fields
(underground parking, under a steel
tower, between buildings, roof parking,
near a crossing, near a large vehicle,
etc.).
During calibration, do not operate elec-
tric systems (moon roof, power win-
dows, etc.) as they may interfere with
the calibration.
CAUTION
When doing the circling calibration,
be sure to secure a wide space,
and watch out for people and ve-
hicles in the neighborhood. Do not
violate any local traffic rules while
performing circling calibration.
Do not adjust the display while the
vehicle is moving. Be sure to adjust
the display only when the vehicle is
stopped.
With manual air conditioning system
With automatic air conditioning system
Clock

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The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high−speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 Imp. qt./600
miles)
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an express way, making it
appear that oil is excessively consumed
after driving at high speeds. IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see “Checking the engine oil level” on
page 456 in Section 7
−2.
Your engine is fitted with iridiumtipped
spark plugs.
NOTICE
Use only iridiumtipped spark plugs
and do not adjust gaps for your en-
gine performance smooth driveabili-
ty.
Iridiumtipped spark plugs

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Ti r e relat ed ter mMeaning
Accessory weight
the combined weight (in excess of those standard items which may be
replaced) of automatic transmission, power steering, power brakes, power
windows, power seats, radio, and heater, to the extent that these items
are available as factory−installed equipment (whether installed or not)
Cold tire inflation pressure
tire inflation pressure when the vehicle has been parked for at least 3
hours or more, or it has not been driven more than 1.5 km or 1 mile
under that condition
Curb weight
the weight of a motor vehicle wi th standard equipment including the
maximum capacity of fuel, oil, and coolant, and, if so equipped, air
conditioning and additional weight optional engine
Intended outboard sidewall
(A) the sidewall that contains a whitewall, bears white lettering or bears manufacturer, brand, and/or model name molding that is higher or
deeper than the same molding on th e other sidewall of the tire, or
(B) the outward facing sidewall of an asymmetrical tire that has a particular side that must always face outward when mounted on a vehicle
Maximum inflation pressurethe maximum cold inflation pressure to which a tire may be inflated and it
is shown on the sidewall of the tire
Maximum loaded vehicle weight
t he sum of —
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
—Glossary of tire terminology

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Because stopping distance may be in-
creased, vehicle−to −vehicle distance
should be increased when towing a
trailer. For each 16 km/h (10 mph) of
speed, allow at least one vehicle and
trailer length between you and the ve-
hicle ahead. Avoid sudden braking as
you may skid, resulting in jackknifing
and loss of control. This is especially
true on wet or slippery surfaces.
Avoid jerky starts or sudden accelera-
tion.
Avoid jerky steering and sharp turns.
The trailer could hit your vehicle in a
tight turn. Slow down before making a
turn to avoid the necessity of sudden
braking.
Remember that when making a turn,
the trailer wheels will be closer than
the vehicle wheels to the inside of the
turn. Therefore, compensate for this by
making a larger than normal turning
radius with your vehicle.
Crosswinds and rough roads will ad-
versely affect handling of your vehicle
and trailer, causing sway. Pay attention
to the rear from time to time to pre-
pare yourself for being passed by large
trucks or buses, which may cause your
vehicle and trailer to sway. If swaying
happens, firmly grip the steering wheel
and reduce speed immediately but
gradually. Never increase speed. Steer
straight ahead. If you make no extreme
correction with the steering or brakes,
the vehicle and trailer will stabilize.
Be careful when passing other ve-
hicles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer and
be sure you have plenty of room be-
fore changing lanes.
In order to maintain engine braking effi-
ciency, do not place the transmission
in “D”.
Because of the added load of the trail-
er, your vehicle’s engine may overheat
on hot days (at temperatures over
30 C [85 F]) when going up a long or
steep grade with a trailer. If the engine
coolant temperature gauge indicates
overheating, immediately turn off the air
conditioning (if in use), pull off the road
and stop in a safe spot. Refer to “If
your vehicle overheats” on page 410 in
Section 4.
Always place wheel blocks under both
the vehicle and trailer wheels when
parking. Apply the parking brake firmly.
Put the transmission in “P”. Avoid park-
ing on a slope with a trailer, but if it
cannot be avoided, do so only after
performing the following:
1. Apply the brakes and hold.
2. Have someone place wheel blocks un- der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, release your brakes slowly until the
blocks absorb the load.
4. Apply the parking brake firmly.
5. Shift into “P” and turn off the engine.

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Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine lugging or overrev-
ving. Use a gear position suitable for
the road on which you are travelling.
Avoid continuous speeding up and
slowing down. Stop−and− go driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the brake
pedal. This causes premature wear,
overheating and poor fuel economy.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
Keep the front wheels in proper
alignment. Avoid hitting the curb and
slow down on rough roads. Improper
alignment not only causes faster tire
wear but also puts an extra load on
the engine, which, in turn, wastes fuel.
Keep the bottom of your vehicle free
from mud, etc. This not only lessens
weight but also helps prevent corro-
sion.
Keep your vehicle tunedup and in
top shape. A dirty air cleaner, improp-
er valve clearance, dirty plugs, dirty oil
and grease, brakes not adjusted, etc.
all lower engine performance and con-
tribute to poor fuel economy. For longer
life of all parts and lower operating
costs, keep all maintenance work on
schedule, and if you often drive under
severe conditions, see that your vehicle
receives more frequent maintenance.
(For scheduled maintenance informa-
tion, please refer to the “Scheduled
Maintenance Guide” or “Owner ’s Manu-
al Supplement”.)
CAUTION
Never turn off the engine to coast
down hills. Your power steering and
brake booster will not function with-
out the engine running. Also, the
emission control system operates
properly only when the engine is run-
ning.