2004 TOYOTA SIENNA air conditioning

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Carpets
Use a good foamtype shampoo to
clean the carpets.
Begin by vacuuming thoroughly to remove
as much dirt as possible. Several types of
foam cleaners are available; some are in
aerosol can sand others are powders or
liquids which you mix with water to pro-
duce a foam. To shampoo the carpets,
use a sponge or brush to apply the foam.
Rub in overlapping circles.
Do not apply water—the best results are
obtained by keeping the carpet as dry as
possible. Read the shampoo instructions
and follow them closely.
Seat belts
The seat belts may be cleaned with
mild soap and water or with lukewarm
water.
Use a cloth or sponge. As you are clean-
ing, check the belts for excessive wear,
fraying, or cuts.
NOTICE
Do not use dye or bleach on the
belts—it may weaken them.
 Do not use the belts until they be-
come dry.
Windows
The windows may be cleaned with any
household window cleaner.
NOTICE
When cleaning the inside of the rear
window, be careful not to scratch or
damage the heater wires or connec-
tors.
Air conditioning control panel, car au-
dio, instrument panel, console panel,
and switches
Use a soft damp cloth for cleaning.
Soak a clean soft cloth in water or luke-
warm water then lightly wipe off dirt.
NOTICE
Do not use organic substances (sol-
vents, kerosene, alcohol, gasoline,
etc.) or alkaline or acidic solutions.
These chemicals can cause discol-
oring, staining or peeling of the
surface.
 If you use cleaners or polishing
agents, make sure their ingredients
do not include the substances men-
tioned above.
If you use a liquid car freshener, do
not spill the liquid onto the ve-
hicle’s interior surfaces. It may con-
tain the ingredients mentioned
above. Immediately clean any spill
using the method mentioned above.
Leather Interior
The leather upholstery may be cleaned
with neutral detergent for wool.
Remove dirt using a soft cloth dampened
with 5% solution of neutral detergent for
wool. Then thoroughly wipe off all traces
of detergent with a clean damp cloth.
After cleaning or whenever any part of the
leather gets wet, dry with a soft clean
cloth. Allow the leather to dry in a venti-
lated shaded area.

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Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See page 463 in Section 7−2
for additional information.
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See page
466 in Section 7− 2 for additional in-
formation. When checking the tires,
make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the “Scheduled Maintenance
Guide” or “Owner ’s Manual Supple-
ment”.) See page 468 in Section 7 −2
for additional information.Be on the alert for changes in perfor-
mance, sounds, and visual tip −offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat −looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Engine coolant temperature continually
higher than normal If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

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If you perform maintenance by yourself,
be sure to follow the correct procedure
given in this Section.
You should be aware that improper or in-
complete servicing may result in operating
problems.
Performing do−it−yourself maintenance
during the warranty period may affect your
warranty coverage. Read the separate
Toyota Warranty statement for details and
suggestions.
This Section gives instructions only for
those items that are relatively easy for an
owner to perform. As explained in Section
6, there are still a number of items that
must be done by a qualified technician
with special tools.
For information on tools and Sections for
do− it−yourself maintenance, see “Parts
and tools” on page 453 in this Section.
Utmost care should be taken when work-
ing on your vehicle to prevent accidental
injury. Here are a few precautions that
you should be especially careful to ob-
serve:CAUTION
When the engine is running, keep
hands, clothing, and tools away
from the moving fan and engine
drive belts. (Removing rings,
watches, and ties is advisable.)
Right after driving, the engine
compartment—the engine, radiator,
exhaust manifold and spark plug
boots, etc.—will be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the engine is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Be sure that the ignition is off if
you work near the electric cooling
fans or radiator grille. With the
ignition on, the electric cooling fans
will automatically start to run if the
engine coolant temperature is high
and/or the air conditioning is on.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Doityourself service
precautions

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DOITYOURSELF MAINTENANCE
Engine and Chassis
Checking the engine oil level456
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Checking the engine coolant level 458
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Checking the radiator and condenser 460
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Checking and replacing the air conditioning filter 460
. . . . . . . . . . . . . . .
Checking brake fluid 462
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. . . .
Checking power steering fluid 463
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Checking tire inflation pressure 463
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires 466
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 468
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Run −flat tires 469
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Installing snow tires and chains 471
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Replacing wheels 473
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Aluminum wheel precautions 474
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SECTION 7 2

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If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, take your vehicle to a Toyota dealer.
CAUTION
To prevent burning yourself, be care-
ful not to touch the radiator or con-
denser when the engine is hot.
NOTICE
To prevent damage to the radiator
and condenser, do not perform the
work by yourself.
The air conditioning filter is behind the
glove box.
The air conditioning filter may clog af-
ter long use. The filter may need to be
replaced if the air flow of the air condi-
tioning and heater experiences extreme
reductions in operating efficiency, or if
the windows begin to fog up easily.To maintain the air conditioning efficiency,
inspect and replace the air conditioning
filter according to the maintenance sched-
ule. In dusty areas or areas with heavy
traffic flow, such as inner city or desert
areas, early replacement may be required.
(For scheduled maintenance information,
please refer to the “Scheduled Mainte-
nance Guide” or “Owner ’s Manual Supple-
ment”.)
Checking the radiator and
condenser
Checking and replacing the
air conditioning filter

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13. DOME 10 A: Interior lights, personal
lights, vanity lights, door courtesy
lights, luggage compartment light, igni-
tion switch light, multi −information dis-
play
14. ECUB 10 A: Power sliding door, air
conditioning system, power windows,
multiplex communication system, meter
and gauge, wireless remote control
system
15. RAD NO.1 20 A: Audio system, navi-
gation system
16. SPARE 15 A: Spare fuse
17. SPARE 20 A: Spare fuse
18. SPARE 30 A: Spare fuse
19. SPARE 30 A: Spare fuse
20. SPARE 7.5 A: Spare fuse
21. HLP RH 10 A: Right−hand headlight
22. HLP LH 10 A: Left−hand headlight
23. RSE 7.5 A: Rear seat audio system,
rear seat entertainment system
24. MIR HTR 10 A: Outside rear view mir-
ror heaters
25. RAD2 7.5 A: Audio system, navigation
system, rear seat audio system, rear
seat entertainment system 26. PWR OUTLET 15 A:
Power outlets
27. CIG 15 A: Cigarette lighter
28. ECU ACC 7.5 A: Shift lock control
system, air c onditioning system, power
rear view mirror control
29. GAUGE2 7.5 A: Meter and gauge
30. IGN 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, SRS airbag system, multiplex
communication system
31. INJ 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
32. RR WIP 15 A: Rear window wiper
33. WIP 30 A: Windshield wiper and rear
window wiper
34. GAUGE1 10 A: Back−up lights, turn
signal lights, emergency flashers
35. SHTR 15 A: Seat heaters
36. WSH 20 A: Windshield washer and
rear window washer
37. HTR 10 A: Air conditioning system 38. ECUIG 10 A:
Toyota park assist sys-
tem, rear view monitor system, multi-
plex communication system, multiport
fuel injection system/sequential multi-
port fuel injection system, anti −lock
brake system, traction control system,
vehicle stability control system, shift
lock control system, dynamic laser
cruise control system, seat heaters,
power back door, electronic moon roof,
multi −information display, auto anti−
glare inside rear view mirror, power
windows, power outlets (115V)
39. PANEL 10 A: Air conditioning system,
seat heaters, audio system, navigation
system, power sliding door, power back
door, multi −information display, rear
wi

ndow defogger, emergency flashers,
instrument panel lights, steering switch
lights
40. TAIL 10 A: Stop/tail lights, license
plate lights, parking lights, side marker
lights
41. S/ROOF 25 A: Electronic moon roof
42. AC INV 15 A: Power outlets (115V)
43. FR DEF 15 A: Windshield wiper de−
icer
44. AM1 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system

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45. STOP 10 A: Stop/tail lights, high
mounted stoplight, shift lock control
system, anti −lock brake system, trac-
tion control system, vehicle stability
control system, multiport fuel injection
system/s equential multiport fuel injec-
tion system, multiplex communication
system
46. P/W 25 A: Power windows
47. OBD 7.5 A: On−board diagnosis sys-
tem
48. FOG 15 A: Front fog lights
49. P/VENT 15 A: Power quarter windows
50. ST 7.5 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
51. A/C 7.5 A: Manual air conditioning sys-
tem
Fuses (type B)
52. MAIN 30 A: Headlights, daytime run-
ning light system, “H −LP RL” and “H −
LP LL” fuses
53. AM2 30 A: “INJ”, “IGN” and “GAUGE2”
fuses
54. P/SEAT 30 A: Power seats
55. PWR 30 A: Power windows Fuses (type C)
56. SPARE 50 A: Spare fuse
57. HTR 50 A: Air conditioning system,
“A/C” fuse
58. FAN 50 A: Electric cooling fans
59. PBD 30 A: Power back door
60. RPSD 30 A: Right side power sliding
door
61. LPSD 30 A: Left side power sliding
door
62. RR A/C 40 A: Rear air conditioning
system
63. DEF 40 A: Rear window defogger,
“MIR HTR” fuse
64. ABS1 50 A: Anti−lock brake system,
traction control system, vehicle stability
control system
65. ABS2 30 A: Anti−lock brake system,
traction control system, vehicle stability
control system
66. ST 30 A: Starting system
Fuse (type D)
67. ALT 140 A: Charging system, “RR
A/C”, “HTR”, “FAN”, “PBD”, “R− PSD”,
“L −PSD” and “DEF” fuses