2004 TOYOTA SIENNA battery

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The automatic light control sensor is on
the top of the driver’s side instrument
panel.
Do not place anything on the instrument
panel, and/or do not affix anything on the
windshield to block this sensor.
Automatic light cut off system
Position 1 or position 3 with the tail
lights on—
The lights automatically turn off when the
driver ’s door is opened with the ignition
key in the “ACC” or “LOCK” position.Position 2 or 3 with the headlights on—
The lights automatically turn off after 30
seconds when all the side doors and back
door are closed with the ignition key in
the “ACC” or “LOCK” position.
If the “
” (lock) switch of the wireless
remote control transmitter is pushed when
all the side doors and back door are al-
ready locked, the lights automatically turn
off immediately.
The time before the headlights turn off
can be changed. For details, contact your
Toyota dealer.
To turn them on again, turn the key to the
“ON” position or actuate the headlight
switch.
If you are going to park for over one
week, make sure the headlight switch is
off.
NOTICE
To prevent the battery from being dis-
charged, do not leave the lights on
for a long period when the engine is
not running.
Daytime Running Light (DRL) system
(all models sold in Canada and some
models sold in U.S.A.)
The Daytime Running Light (DRL) system
can make it easier for others to see the
front of your vehicle during the day. The
DRL system can be helpful in many differ-
ent driving conditions, but they can be
especially helpful in the short periods after
dawn and before sunset.
The DRL system will make the headlights
come on when:
The ignition is on with the engine run-
ning.
The knob is in the “OFF” position,
position 1 or position 3 with the tail
lights on.
The parking brake is released.
To turn off the DRL system, twist the knob
to position 2 or position 3 with the head-
lights on, or turn the ignition switch off.

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NOTICE
To prevent the battery from being dis-
charged, do not leave the switch on
longer than necessary when the en-
gine is not running.
To adjust the brightness of the instru-
ment panel lights, turn the knob.To turn on the front fog lights, twist
the band of the headlight and turn sig-
nal switch lever. They will come on
only when the headlights are on low
beam.
Instrument panel light control Front fog lights

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The following adjustments can be made in
this system. For details, contact your
Toyota dealer.
Cancelling the door key or the wireless
remote control transmitter linked opera-
tion
Cancelling the ignition switch linked op-
eration.
Changing the duration of lighting
To prevent the battery being discharged,
the lights will automatically turn off when
the key is removed and the door is left
opened with the switch at “DOOR” position
for 20 minutes or more.
Personal light main switch
To turn on the rear personal lights, op-
erate the personal light main switch.
The lights can be turned on or off by
pushing each lens when the personal
light main switch is in the “DOOR”
position.
The personal light main switch has the
following positions:
“ON”—Keeps the light on all the time.
“OFF”—Turns the light off.
“DOOR”—Turns the light on when any of
the sliding doors or back door is opened.
When both the sliding doors and back
door are closed, the lights can be turned
on or off by pushing each lens.
Rear personal lights

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When any of the side doors or back door
is unlocked using either the key or the
wireless remote control transmitter, the
light will come on and remain on for about
15 seconds before fading out.
The following adjustments can be made in
this system. For details, contact your
Toyota dealer.
Cancelling the door key or the wireless
remote control transmitter linked opera-
tion
Changing the duration of lighting
To prevent the battery being discharged,
the light will automatically turn off when
the key is removed and the door is left
opened for 20 minutes or more.
To turn on the windshield wipers, move
the lever to the desired setting.
The key must be in the “ON” position.
Lever position
Speed setting
Position 1Intermittent
Position 2Slow
Position 3Fast
For a single sweep of the windshield,
push the lever up and release it. With interval adjuster: The “INT TIME”
band lets you adjust the wiping time inter-
val when the wiper lever is in the intermit-
tent position (position 1). Twist the band
upward to increase the time between
sweeps, and downward to decrease it.
To squirt washer fluid, pull the lever
toward you.
If the windshield wipers are off, they will
operate a couple of times after the washer
squirts.
For instructions on adding washer fluid,
see “Adding washer fluid” on page 479 in
Section 7
−3.
In freezing weather, warm the windshield
with the defroster before using the washer.
This will help prevent the washer fluid
from freezing on your windshield, which
can block your vision.
NOTICE
Do not operate the wipers if the wind-
shield is dry. It may scratch the
glass.
Windshield wipers and washer

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To defog or defrost the rear window,
push the switch.
The key must be in the “ON” position.
The thin heater wires on the inside of the
rear window will quickly clear the window
surfaces. An indicator light will illuminate
to indicate the defogger is operating.
On some models, the rear view mirror
defoggers and/or the windshield wiper de−
icer is also operating simultaneously by
this switch. Vehicles with the outside rear
view mirror defoggers, the heater panel in
the outside rear view mirrors will quickly
clear the surfaces. Vehicles with the wind-
shield wiper de −icer, the windshield wiper
blades will be de −iced. Push the switch once again to turn the
defoggers off.
The system will automatically shut off af-
ter the defoggers have operated about 15
minutes.
CAUTION
On some models, since the mirror
surfaces can get hot, do not touch
them when the defogger switch is on.
Make sure you turn the defoggers off
when the surfaces are clear or the wiper
blades have de
−iced. Leaving the defog-
gers on for a long time could cause the
battery to discharge, especially during
stop −and− go driving. The defoggers are
not designed for drying rain water or for
melting snow.
If the outside rear view mirrors are heavi-
ly coated with ice, use a spray de −icer
before operating the switch.
NOTICE
When cleaning the inside of the rear
window, be careful not to scratch or
damage the heater wires or connec-
tors.
Rear window and outside rear
view mirror defoggers and
windshield wiper deicer

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(d) Discharge Warning Light
This light warns that the battery is being
discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging
system.
The engine ignition will continue to oper-
ate, however, until the battery is dis-
charged. Turn off the air conditioning,
blower, radio, etc., and drive directly to
the nearest Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine
drive belt is broken or loose.
(e) Malfunction Indicator Lamp
This lamp comes on when the ignition
key is turned to the “ON” position and
goes off after the engine starts. This
means that the warning light system is
operating properly.
If the lamp remains on, or the lamp
comes on while driving, first check the
followings.
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
Loose fuel tank cap
If the fuel tank cap is loose, securely
tighten it.
These cases are temporary malfunctions.
The malfunction indicator lamp will go off
after taking several driving trips.
If the lamp does not go off even after
several trips, contact your Toyota dealer
as soon as possible.
If the fuel tank is not empty or the fuel
tank cap is not loose...
There is a problem somewhere in the
engine, emission control system, elec-
tronic throttle control system, automatic
transmission electrical system or warn-
ing light system itself.
Contact your Toyota dealer as soon as
possible to service the vehicle.
If engine speed does not increase with the
accelerator pedal depressed down, there
may be a problem somewhere in your
electronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer as soon as
possible. Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to “ACC” or
“LOCK” position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
Emissions Inspection and Maintenance
(I/M) programs
Your vehicle may not pass a state
emission inspection if the malfunction
indicator lamp remains on. Contact your
Toyota dealer to check your vehicle’s
emission control system and OBD
(On
−Board Diagnostics) system before
taking your vehicle for the inspection.
For details, see “Emissions Inspection and
Maintenance (I/M) programs” on page 446
in Section 6.

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“START”—Starter motor on. The key
will return to the “ON” position when
released.
For starting tips, see page 393 in Section
3.
It is not a malfunction even if the needle
of the tachometer, fuel gauge or engine
coolant temperature gauge returns to the
bottom position when the ignition switch is
turned to the “START” position.“ON”—Engine on and all accessories
on.
This is the normal driving position.
It is not a malfunction even if the needle
on the instrument panel may move when
the ignition switch is turned to the “ON”
position.
“ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the key in the “ACC” or
“LOCK” position and open the driver’s
door, a buzzer will remind you to remove
the key.
“LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position.
You must push in the key to turn the key
from “ACC” to the “LOCK” position. The
selector lever must be put in the “P” posi-
tion before pushing the key.
Vehicles with engine immobilizer system—
Once you remove the key, the engine im-
mobilizer system is automatically set. (See
“Engine immobilizer system” on page 13
in Section 1−
2.) When starting the engine, the key may
seem stuck at the “LOCK” position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
NOTICE
Do not leave the key in the “ON”
position if the engine is not running.
The battery will discharge and the
ignition could be damaged.
Ignition switch with steering
lock

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The rear seat audio system consists of
following components.1. Volume control knobs
2. Rear seat audio system display
3. Headphone input jacks
4. Front audio system
5. Rear seat audio system controller The rear seat audio system can be oper-
ated with the rear seat audio system con-
troller.
CAUTION
Do not disassemble or modify the
controller. It may cause an accident,
fire or electric shock.
NOTICE
Keep the controller away from direct
sunlight, high heat and high humidity.
These conditions could cause the
case to deform or the battery to ex-
plode or leak.
BEFORE USING THE CONTROLLER
(for new vehicle owners)
A battery is already set in the control-
ler with an insulating sheet, which pre-
vents the battery from being dis-
charged. Before using the controller,
remove the insulating sheet.
—Rear seat audio system
controller