2003 TOYOTA SIENNA fuel type

03 SIENNA_U (L/O 0207)
1362003 MY SIENNA (OM45410U)
With tachometer
Low fuel
level warning
light
Without tachometer
The gauge indicates the approximate
quantity of fuel remaining in the tank
when the ignition switch is on.
Nearly full—Needle at “F”
Nearly empty—Needle at “E”
It is a good idea to keep the tank over
1/4 full.
This fuel gauge has a nonreturn type
needle which remains at the last indicated
position when the ignition switch is turned
off.
If the fuel level approaches “E” or the low
fuel level warning light comes on, fill the
fuel tank as soon as possible.
On inclines or curves, due to the move-
ment of fuel in the tank, the fuel gauge
needle may fluctuate or the low fuel level
warning light may come on earlier than
usual.
If the fuel tank is completely empty, the
malfunction indicator lamp comes on. Fill
the fuel tank immediately.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.
With tachometer
Without tachometer
Fuel gaugeEngine coolant temperature
gauge

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2252003 MY SIENNA (OM45410U)
INFORMATION BEFORE DRIVING YOUR
TOYOTA
Breakin period226
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Fuel 226
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Fuel pump shut off system 228
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Operation in foreign countries 228
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Threeway catalytic converter 229
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Engine exhaust cautions 230
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Facts about engine oil consumption 230
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Iridiumtipped spark plugs 231
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Brake system 232
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Brake pad wear limit indicators 235
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Luggage stowage precautions 235
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Roof luggage carrier 236
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Your Toyota’s identification 237
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Theft prevention labels 238
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Suspension and chassis 238
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Types of tires 239
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SECTION 2

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2262003 MY SIENNA (OM45410U)
Drive gently and avoid high speeds.
Your vehicle does not need an elaborate
breakin. But following a few simple tips
for the first 1600 km (1000 miles) can add
to the future economy and long life of
your vehicle:
Avoid full throttle acceleration when
starting and driving.
Avoid racing the engine.
Try to avoid hard stops during the first
300 km (200 miles).
Do not drive for a long time at any
single speed, either fast or slow.
Do not tow a trailer during the first 800
km (500 miles).FUEL TYPE
Your new vehicle must use only un-
leaded gasoline.
To help prevent gas station mixups, your
Toyota has a smaller fuel tank opening.
The special nozzle on pumps with un-
leaded fuel will fit it, but the larger stan-
dard nozzle on pumps with leaded gas will
not.
At a minimum, the gasoline you use
should meet the specifications of ASTM
D4814 in the U.S.A. and CGSB 3.5M93
in Canada.NOTICE
Do not use leaded gasoline. Use of
leaded gasoline will cause the three
way catalytic converter to lose its ef-
fectiveness and the emission control
system to function improperly. Also,
this can increase maintenance costs.
OCTANE RATING
Select Octane Rating 87 (Research
Octane Number 91) or higher. For
improved vehicle performance, the use
of premium unleaded gasoline with an
Octane Rating of 91 (Research Octane
Number 96) or higher is recommended.
Use of unleaded gasoline with an octane
rating or research octane number lower
than stated above will cause persistent
heavy knocking. If it is severe, this will
lead to engine damage.
If your engine knocks...
If you detect heavy knocking even when
using the recommended fuel, or if you
hear steady knocking while holding a
steady speed on level roads, consult your
Toyota dealer.
However, now and then, you may notice
light knocking for a short time while accel-
erating or driving up hills. This is no need
of concern.
Breakin period
Fuel

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GASOLINE CONTAINING DETERGENT
ADDITIVES
Toyota recommends the use of gasoline
that contains detergent additives to
avoid buildup of engine deposits.
However, all gasoline sold in the U.S.
contains detergent additives to keep clean
and/or clean intake systems.
QUALITY GASOLINE
Automotive manufacturers in the U.S.,
Europe and Japan have developed a
specification for quality fuel named
WorldWide Fuel Charter (WWFC) that
is expected to be applied world wide.
The WWFC consists of three categories
that depend on required emission lev-
els. In the U.S., category 3 has been
adopted. The WWFC improves air quali-
ty by providing for better emissions in
vehicle fleets, and customer satisfaction
through better vehicle performance.CLEANER BURNING GASOLINE
Cleaner burning gasoline, including re-
formulated gasoline that contains oxy-
genates such as ethanol or MTBE is
available in many areas.
Toyota recommends the use of cleaner
burning gasoline and appropriately blended
reformulated gasoline. These types of gas-
oline provide excellent vehicle perfor-
mance, reduce vehicle emissions, and im-
prove air quality.
OXYGENATES IN GASOLINE
Toyota allows the use of oxygenate
blended gasoline where the oxygenate
content is up to 10% ethanol or 15%
MTBE. If you use gasohol in your
Toyota, be sure that it has an octane
rating no lower than 87.
Toyota does not recommend the use of
gasoline containing methanol.
SULFUR IN GASOLINE
If your vehicle is certified to California
Emission Regulations, the vehicle is
designed to operate on California
cleaner burning gasoline (CBG) that
contains lower sulfur. If you cannot use
California CBG, your emission control
system may suffer damage and turn on
the Malfunction Indicator Lamp.
If the malfunction is caused by the type
of fuel used, repairs may not be covered
by your warranty.
GASOLINE CONTAINING MMT
Some gasoline contain an octane en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of
gasoline that contains MMT. If fuel con-
taining MMT is used, your emission con-
trol system may be adversely affected.
The Malfunction Indicator Lamp on the in-
strument cluster may come on. If this hap-
pens, contact your Toyota dealer for ser-
vice.

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Oil identification marks
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located any-
where on the outside of the container.
The top portion of the label shows the oil
quality by API (American Petroleum Insti-
tute) designations such as SL. The center
portion of the label shows the SAE viscos-
ity grade such as SAE 5W30. “Energy
Conserving” shown in the lower portion,
indicates that the oil has fuelsaving ca-
pabilities.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container.
To ensure the best possible lubrication
performance for your engine, the “Toyota
Genuine Motor Oil” range is available,
which has been specifically tested and ap-
proved for all Toyota engines.
Please contact your Toyota dealer for fur-
ther details of the “Toyota Genuine Motor
Oil” range.Look at the seethrough coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the “FULL” and “LOW” lines on the
reservoir. If the level is low, add ethyl-
eneglycol type coolant for a proper
corrosion protection of aluminum com-
ponents.
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the “LOW” line, add
coolant. Bring the level up to the “FULL”
line.
Always use ethyleneglycol type coolant
for a proper corrosion protection of alumi-
num components. See information in the
next column.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, engine coolant filler cap,
radiator cap and drain cock and water
pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
Checking the engine coolant
level

03 SIENNA_U (L/O 0207)
3232003 MY SIENNA (OM45410U)
Fuel type:Unleaded gasoline, Octane Rating 87
(Research Octane Number 91) or higher.
For improved vehicle performance, the
use of premium unleaded gasoline with
an Octane Rating of 91 (Research Oc-
tane Number 96) or higher is recom-
mended.
Fuel tank capacity, L (gal., Imp. gal.): 79 (21, 17.5) ENGINE
Valve clearance (engine cold), mm (in.):
Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: DENSO SK20R11
NGK IFR6A11
Spark plug gap, mm (in.): 1.1 (0.043)
Drive belt tension measured with Bor-
roughs drive belt tension gauge
No.BT3373F (used belt), Ibf: Generator belt 125 10
Power steering pump belt 115 20
ENGINE LUBRICATION
Oil capacity (drain and ref ill),
L (qt., Imp. qt.): With filter 4.7 (5.0, 4.1)
Without filter 4.5 (4.8, 4.0)
“Toyota Genuine Motor Oil” is f illed in
your Toyota vehicle. Use Toyota approved
“Toyota Genuine Motor Oil” or equivalent
to satisfy the following grade and
viscosity.
Oil grade: API grade SL “EnergyConserving” or
ILSAC multigrade engine oil Recommended oil viscosity:
SAE 5W30
Outside temperature
Please contact your Toyota dealer for fur-
ther details.
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):10.4 (11.0, 9.2)
Coolant type: “Toyota Genuine Long Life Coolant” is
filled in your Toyota vehicle. In order to
avoid technical problems, we strongly
recommend using “Toyota Genuine Long
Life Coolant” or equivalent.
Fuel Service specifications

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Engine compartment
(with towing package)Engine compartment
(without towing package)
Engine compartment
Fuses (type A)1. SEAT HTR 20 A: Seat heaters
2. A/F HTR 25 A: Air fuel ratio sensor
3. SPARE 10 A: Spare fuse
4. SPARE 15 A: Spare fuse
5. SPARE 30 A: Spare fuse
6. ALTS 5 A: Charging system
7. HEAD (RH) 15 A: Righthand headlight
(high beam)
8. EFI 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
Fuses

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3282003 MY SIENNA (OM45410U)
27. IGN 5 A: Gauges and meters, charging
system, SRS airbag system, seat belt
pretensioners, multiport fuel injection
system/s equential multiport fuel injec-
tion system
28. STOP 15 A: Stop lights, cruise control
system, highm ounted stoplight, tail
lights
29. TAIL 10 A: Parking lights, front side
marker lights, license plate lights, tail
lights, power sliding door
30. PWRVENT 15 A: Power rear quarter
windows
31. OBD 7.5 A: Onboard diagnosis sys-
tem
32. PWROUTLET 15 A: Power outlets
33. STARTER 5 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
34. DOOR 25 A: Power door lock system,
theft deterrent system
35. PANEL 7.5 A: Gauge and meter, car
audio system, clock, air conditioning
system, instrument p anel light control,
rear window defogger, electronically
controlled automatic transmission sys-
tem, emergency flashers, parking
lights, seat heaters, power rear quarter
windows, power sliding door 36. TURN 7.5 A:
Turn signal lights, emer-
gency flashers
37. RADIO NO.2 7.5 A: Car audio system
38. CIG 15 A: Cigarette lighter, clock, pow-
er rear view mirror controls, SRS air-
bag system, seat belt pretensioners,
backup lights, theft deterrent system,
air conditioning system
39. A /C 5 A: Front air conditioning system
Fuses (type B)
40. CDS 40 A: Electric cooling fans
41. RDI 40 A: Electric cooling fans
42. CDS 30 A: Electric cooling fans
43. RDI 30 A: Electric cooling fans
44. MAIN 40 A: Daytime running light sys-
tem, “HLP RH (LO)” and “HLP LH
(LO)” fuses
45. R /R A /C 40 A: Rear air conditioning
system
46. HTR 50 A: Front air conditioning sys-
tem
47. PWR SLD 30 A: Power sliding door
(left side)
48. Rr CLR 40 A: Rear air conditioning
system
49. DEF 30 A: Rear window defogger,
“MIRRORHEATER” fuse 50. PWR 30 A:
Power windows, electric
moon roof, power seat, power sliding
door (right side), “PWRVENT” fuse
51. AM1 40 A: “CIG”, “RADIO NO.2”,
“ECUIG”, “WIPER”, “HEATER”,
“GAUGE” and “TURN” fuses
Fuses (type C)
52. ALT 140 A: Charging system, “FL
ABS”, “INP”, “HTR” and “R/R A/C”
fuses
53. INP 100 A: “AM1” and “DEF” fuses
54. FL ABS 60 A: Antilock brake system