2008 TOYOTA SIENNA engine

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Personal light main switch
To turn on the luggage compartment
light, push the luggage compartment
light switch upwards. The light turn on
when the personal light main switch is
in the “ON” or “DOOR” position.
The personal light main switch has the
following positions:
“ON”—The light turns on when the lug-
gage compartment switch is pushed up-
wards.
“OFF”—Turns the light off.
“DOOR”—Turns the light on when the lug-
gage compartment switch is pushed up-
wards and any of the sliding door or back
door is opened. The light goes off when
both the sliding doors and back door are
closed.
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 the “DOOR”
position for 20 minutes or more.
For easy access to the engine switch,
the engine switch light comes on when
any of the side doors and back door is
opened or when the engine switch is
turned to the “LOCK” position.
The light remains on for about 15 seconds
after all the side doors and back door are
closed.
However, in the following cases, the light
goes off immediately.
All the side doors and back door are
closed when the engine switch is in the
“ACC” or “ON” position.
All the side doors and back door are
closed and locked.
Luggage compartment lightEngine (ignition) switch light

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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.
The light will come on when the side
doors and back door are unlocked simulta-
neously using either the key or the wire-
less remote control. This light remains on
for 15 seconds before fading out when
any door is opened, and additional 15
seconds after all the side doors and back
door are closed.
However, in the following cases, the light
goes off immediately.
Doors are locked with wireless remote
control.
The selector lever is put in a position
other than “P” with the engine switch
on.
The doors are locked via the driver ’s
door key cylinder.
The doors are locked via the switches
either inside the driver ’s or front pas-
senger ’s door.
Exterior foot lights

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To turn on the windshield wipers, move
the lever to the desired setting.
The engine switch 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 band lets you
adjust the wiping time interval when the
wiper lever is in the intermittent 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 539 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.
When waxing your vehicle, make sure that
the washer nozzles do not become
blocked. If a nozzle becomes blocked,
contact your Toyota dealer to have the
vehicle serviced.
NOTICE
If a nozzle becomes blocked, do not
try to clear it with a pin or other
object. The nozzle will be damaged.
Windshield wipers and washer

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To turn on the rear window wiper, twist
the lever knob upward.
The engine switch must be in the “ON”
position.Lever position
Speed setting
Position 1Intermittent
Position 2Normal
To squirt washer fluid on the rear window,
twist the knob upward or downward as far
as it will go (position 3 or 4). The knob
automatically returns from these positions
after you release it. The rear window wip-
er operates while the washer squirts. For instructions on adding washer fluid,
see “Adding washer fluid” on page 539 in
Section 7
−3.
NOTICE
 Do not operate the rear wiper if the
rear window is dry. It may scratch
the glass.
 Do not lift the rear wiper arm away
from the window, as it may break.
To defog or defrost the rear window,
push the switch.
The engine switch 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.
Rear window wiper and
washer Rear window and outside rear
view mirror defoggers and
windshield wiper deicer

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OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge188
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Engine coolant temperature gauge 188
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Tachometer 189
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Odometer and two trip meters 190
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Service reminder indicators and warning buzzers 191
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SECTION 1 6

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Low fuel level
warning light
Ty p e A
Low fuel level
warning light
Ty p e B
The gauge indicates the approximate
quantity of fuel remaining in the tank
when the engine 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.
The needle moves when braking, acceler-
ating or making turns. This is caused by
the movement of the fuel in the tank.
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.
Ty p e A
Ty p e B
Fuel gauge Engine coolant temperature
gauge

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The gauge indicates the engine coolant
temperature when the engine switch is
on. The engine operating temperature
will vary with changes in weather and
engine load.
If the needle moves into the red zone,
your engine is too hot. If your vehicle
overheats, stop your vehicle and allow the
engine to cool.
Your vehicle may overheat during severe
operating conditions, such as:
Driving up a long hill on a hot day.
Reducing speed or stopping after high
speed driving.
Idling for a long period with the air
conditioning on in stop−and− go traffic.
Towing a trailer.
NOTICE
Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.
 Do not continue driving with an
overheated engine. See “If your ve-
hicle overheats” on page 470 in
Section 4.
The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and overrevving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get
into the red zone. This may cause
severe engine damage.
Tachometer

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If the indicator or buzzer comes on...Do this.
(h)orTake vehicle to Toyota dealer.
If brake system warning light is also on, stop immediately and contact Toyota dealer.
(i)Close all doors.
(j)Take vehicle to Toyota dealer immediately.
(k)Take vehicle to Toyota dealer.
(l)Adjust tire inflation pressure. If the light comes on after blinking for 1 minute, contact
Toyota dealer.
(m)Add washer fluid.
(n)Replace engine oil.