2003 TOYOTA SIENNA service indicator

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2602003 MY SIENNA (OM45410U)
The compact spare tire can be used many
times, if necessary. It has tread life of up
to 4800 km (3000 miles) depending on
road conditions and your driving habits.
When tread wear indicators appear on the
tire, replace the tire.
See also the tire section in Section 72
for details on the tread wear indicators
and other service information.
CAUTION
The compact spare tire was de-
signed especially for your Toyota.
Do not use it on any other vehicle.
Do not exceed 80 km/h (50 mph)
when driving with the compact
spare tire.
Avoid sudden acceleration, sudden
deceleration and sharp turns with
the compact spare tire.
NOTICE
Your ground clearance is reduced
when the compact spare tire is
installed so avoid driving over ob-
stacles and drive slowly on rough,
unpaved roads and speed bumps.
Also, do not attempt to go through an
automatic car wash as the vehicle
may get caught, resulting in damage.
Right side power sliding door models
Left and right side power sliding door
models
—Required tools and spare
tire

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Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise.
Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For foldingdown rear seatbacks
and detachable rear seats, check that the
latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied.
Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission “Park” mecha-
nism
On a safe incline, check that your vehicle
is held securely with the selector lever in
“P” position and all brakes released.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Section 73 for additional in-
formation.
Engine coolant level
Make sure the coolant level is between
the “FULL” and “LOW” lines on the see
through reservoir when the engine is cold.
See Section 72 for additional information.
Radiator, condenser and hoses
Check that the front of the radiator and
condenser are clean and not blocked with
leaves, dirt, or insects. See Section 72
for additional information.
Battery electrolyte level
Your Toyota has a maintenance free bat-
tery. You do not have to add distilled wa-
ter. For longer life of the battery, however,
see Section 73 for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See Section 72 for additional information.

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Some states have vehicle emission in-
spection programs which include OBD
(OnBoard Diagnostics) checks.
The OBD system monitors the operation
of the emission control system. When the
OBD system determines that a problem
exists somewhere in the emission control
system, the malfunction indicator lamp
comes on. In this case, your vehicle may
not pass the I/M test and need to be
repaired. Contact your Toyota dealer to
service the vehicle.
Even if the malfunction indicator lamp
does not come on, your vehicle may not
pass the I/M test as readiness codes
have not been set in the OBD system.
Readiness codes are automatically set
during ordinary driving. However, when the
battery is disconnected or run down, the
codes are erased. Also, depending on
your driving habits, the codes may not be
completely set.
Also, if the malfunction indicator lamp had
come on recently due to temporary mal-
function such as a loose fuel tank cap,
your vehicle may not pass the I/M test. The malfunction indicator lamp will go off
after taking several driving trips, but the
error code in the OBD system will not be
cleared unless about 40 trips or more are
taken.
If your vehicle does not pass the I/M test
even the malfunction indicator lamp does
not come on, contact your Toyota dealer
to prepare the vehicle for retesting.
Emissions Inspection and
Maintenance (I/M) programs

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Instrument panel
9. HORN 10 A: Horn, theft deterrent sys-
tem
10. HAZARD 10 A: Emergency flashers
11. AM2 30 A: “IGN” and “STARTER”
fuses
12. HEAD (LH) 15 A: Lefthand headlight
(high beam)
13. RADIO NO.1 20 A: Car audio system
Instrument panel
14. DOME 10 A: Clock, personal lights,
vanity mirror lights, door courtesy
lights, luggage compartment light, open
door warning light, ignition switch light,
theft deterrent system, daytime running
light system, interior lights, air condi-
tioning system, wireless remote control,
garage door opener
15. ECUB 10 A: Cruise control system,
SRS warning light, power sliding door
16. FOG 20 A: Front fog lights
17. ABS NO.3 25 A: Vehicle skid control
system 18. ABS NO.2 25 A:
Vehicle skid control
system
19. HLP LH (LO) 10 A: Lefthand head-
light (low beam)
20. HLP RH (LO) 10 A: Righthand head-
light (low beam)
21. ABS NO.4 5 A: Vehicle skid control
system
22. HEATER 10 A: Air conditioning system,
rear window defogger
23. GAUGE 10 A: Gauges and meters,
service reminder indicators and warning
buzzers (except discharge and open
door warning light), power windows,
daytime running light system, backup
lights, power sliding door, auto anti
glare inside rear view mirror, compass
24. WIPER 25 A: Windshield wipers and
washer, rear window wiper and washer
25. MIRRORHEATER 10 A: Multiport fuel
injection system/sequential multiport
fuel injection system, outside rear view
mirror defogger
26. ECUIG 15 A: Cruise control system,
antilock brake system, vehicle skid
control system, locking with wireless
remote control system, theft deterrent
system

03 SIENNA_U (L/O 0207)
2003 MY SIENNA (OM45410U)
Publication No. OM45410U
Part No. 01999-45410
Printed in Japan 01−0207 −00
(U)
Quick index
 If a service reminder indicator or warning buzzer comes on 139 . . . . . . . .
 If your vehicle will not start 254 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 257 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 257 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 258 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 269 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during break −in period 226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 242 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 283 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
Gas station information
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 Octane Number 96) or higher is
recommended.
See page 226 for detailed information.
Fuel tank capacity:
79 L (21 gal., 17.5 lmp. gal.)
Engine oil: API grade SL “Energy −Conserving” or ILSAC multigrade engine oil is
recommended.
See page 297 for detailed information.
Automatic transmission fluid: Toyota Genuine ATF D −II or DEXRON III (DEXRON II)
See page 324 for detailed information.
Tire information: See pages 301 through 307.
Tire pressure: See page 325.
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