04 SIENNA_U (L/O 0408)
401
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
TIRES
Ensure that your vehicle’s tires are
properly inflated. See page 463 in Sec-
tion 7−2 and page 491 in Section 8 for
instructions.
The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.
TRAILER LIGHTS
Trailer lights must comply with federal,
state/provincial and local regulations.
See your local recreational vehicle
dealer or rental agency for the correct
type of wiring and relays for your trail-
er. Check for correct operation of the
turn signals and stop lights each time
you hitch up. Direct splicing may dam-
age your vehicle’s electrical system
and cause a malfunction of your lights.
BREAK IN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearing, etc.) for the first
800 km (500 miles) of driving. MAINTENANCE
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. For this
information, please refer to the
scheduled maintenance information in
the “Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”.
Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.
PRE TOWING SAFETY CHECK
Check that your vehicle remains level
when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has
an abnormal nose −up or nose −down
condition, and check for improper
tongue load, overload, worn suspension
or other possible causes.
Make sure the trailer cargo is securely
loaded so that it cannot shift.
Check that your rear view mirrors con-
form to any applicable federal, state/
provincial or local regulations. If not,
install the rear view mirrors required
for towing purpose. TRAILER TOWING TIPS
When towing a trailer, your vehicle will
handle differently than when not tow-
ing. The three main causes of vehicle
trailer accidents are driver error, exces-
sive speed and improper trailer loading.
Keep these in mind when towing:
Before starting out, check operation of
the lights and all vehicle
−trailer connec-
tions. After driving a short distance,
stop and recheck the lights and con-
nections. Before actually towing a trail-
er, practice turning, stopping and back-
ing with a trailer in an area away from
traffic until you learn the feel.
Backing with a trailer is difficult and
requires practice. Grip the bottom of
the steering wheel and move your hand
to the left to move the trailer to the
left. Move your hand to the right to
move the trailer to the right. (This pro-
cedure is generally opposite to that
when backing without a trailer.) Also,
just turn the steering wheel a little at
a time, avoiding sharp or prolonged
turning. Have someone guide you when
backing to reduce the risk of an acci-
dent.
04 SIENNA_U (L/O 0408)
493
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
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. ECU B 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. H LP RH 10 A: Right−hand headlight
22. H LP 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. S HTR 15 A: Seat heaters
36. WSH 20 A: Windshield washer and
rear window washer
37. HTR 10 A: Air conditioning system 38. ECU IG 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