2004 TOYOTA SIENNA ignition

04 SIENNA_U (L/O 0408)
174
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
(k) “VSC” Warning Light
This light warns that there is a problem
somewhere in the vehicle stability control
system or traction control system.
The light will come on when the ignition
key is turned to “ON” and will go off after
a few seconds.
If the light comes on while driving, the
system does not work. However, as con-
ventional braking operates when applied,
there is no problem to continue your driv-
ing.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.
Tw o −wheel drive models only—The “TRAC
OFF” indicator light will come on when the
“VSC” warning light comes on even if the
“TRAC OFF” switch is not pushed. (l) Low Tire Pressure Warning Light
This light warns that the tire pressure of
any one of the tires is critically low. The
light comes on when the ignition key is
turned to the “ON” position. It goes off
after a few seconds. This indicates that
the low tire pressure warning system is
functioning properly.
If the light comes on while driving, adjust
tire inflation pressure to the specified lev-
el. (See “Tires” on page 491 in Section 8.)
After the tire inflation pressure is adjusted,
the light should go off after driving at
least 30 km/h (19 mph) for some time. If
the light still remains or blinks once every
second, have the low tire pressure warn-
ing system checked at your Toyota dealer.
If the light blinks twice every second, the
low tire pressure warning system needs to
be initialized.
For details, see “Tire pressure warning
system” on page 188 in Section 1
−6.
(m) Low Windshield Washer Fluid Level Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see “Adding washer fluid” on page 479 in
Section 7 −3.) (n) Engine Oil Replacement Reminder
Light (for vehicles sold in U.S.A.)
This light reminds you when to replace
the engine oil.
This light will come on when the ignition
key is turned to “ON” and will go off after
about a few seconds.
When you drive for about 8000 km (5000
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the ignition key turned to the “ON”
position. If you continue driving without
replacing the engine oil, and if the dis-
tance driven exceeds 12000 km (7500
miles), the light will come on after the
ignition key is turned to “ON” position.
The light will remain on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road conditions. If the light comes on,
replace it as soon as possible.

04 SIENNA_U (L/O 0408)
175
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
The system must be reset after the en-
gine oil replacement. Reset the system by
the following procedure:1. Turn the ignition key to the “ACC” or “LOCK” position with the odometer
reading shown. (For details, see
“Odometer and two trip meters” on
page 166 in this Section.)
2. Turn the ignition key to the “ON” posi- tion while holding down the trip meter
reset button.
Hold down the button for at least 5 sec-
onds. The odometer indicates “000000”
and the light goes off.
If the system fails to reset, the light will
continue flashing. (o) Dynamic Laser Cruise Control Mas-
ter Warning Light
This light warns that there is a problem
somewhere in the dynamic laser cruise
control system.
The light will come on when the ignition
key is turned to “ON” and go off after a
few seconds.
When the light comes on, the alarm
sounds and the warning code will appear
on the display. At this time, dynamic laser
cruise control is cancelled. For details,
see “Dynamic laser cruise control” on
page 195 in Section 1 −6.
(p) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver’s door with
the ignition key in the “ACC” or “LOCK”
position. CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light
and low windshield
washer fluid level warning light)
1. Apply the parking brake.
2. Open one of the doors. The open door warning light should
come on.
3. Close the door. The open door warning light should go
off.
4. Turn the ignition key to “ON”, but do not start the engine.
All the service reminder indicators ex-
cept the open door warning light should
come on. The “ABS” and “VSC” warn-
ing lights, low tire pressure warning
light, dynamic laser cruise master
warning light and engine oil replace-
ment reminder light go off after a few
seconds. The SRS warning light goes
off after about 6 seconds. (“TRAC
OFF”, “READY” (dynamic laser cruise
ready mode) indicator lights and slip
indicator light also comes on and go
off after a few seconds.)
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.

04 SIENNA_U (L/O 0408)
177
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Ignition switch, Transmission and Parking brake
Ignition switch with steering lock178
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 179
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
Traction control system 182
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Vehicle stability control system 186
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 188
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 192
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Cruise control 192
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Dynamic laser cruise controll 195
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1 6

04 SIENNA_U (L/O 0408)
178
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
“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

04 SIENNA_U (L/O 0408)
179
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
Your automatic transmission has a shift
lock system to minimize the possibility of
incorrect operation. This means you can
only shift out of “P” position when the
brake pedal is depressed (with the ignition
switch in “ON” position).
(a) Selector lever
The shift position is also displayed on the
instrument cluster.
P:Parking, engine starting and key
removal
R: Reverse
N: Neutral
D: Normal driving
(shifting into overdrive possible)
4: Engine braking
(shifting into overdrive not possible)
3, 2: Stronger engine braking
L: Maximum engine braking
Automatic transmission
Selector lever
Shift normally. Shift with the brake pedal
depressed. (The ignition switch
must be in “ON” position.)

04 SIENNA_U (L/O 0408)
181
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(d) Using “3”, “2” and “L” positions
The “3”, “2” and “L” positions are used for
strong engine braking as described pre-
viously.
With the selector lever in ”3”, “2” or “L”,
you can start the vehicle in motion as
with the lever in “D”.
With the selector lever in “3” or “2”, the
vehicle will start in first gear and automat-
ically shift to third gear or second gear.
With the selector lever in “L”, the trans-
mission is engaged in first gear.
NOTICE
Be careful not to overrev the en-
gine. Watch the tachometer to keep
engine rpm from going into the red
zone. The approximate maximum al-
lowable speed for each position is
given below for your reference:
Twowheel drive models “3” 90 km/h (56 mph) . . . . . . . . . .
“2” 58 km/h (36 mph) . . . . . . . . . .
“L” 32 km/h (20 mph) . . . . . . . . . .
Allwheel drive models “3” 87 km/h (54 mph) . . . . . . . . . .
“2” 56 km/h (35 mph) . . . . . . . . . .
“L” 30 km/h (19 mph) . . . . . . . . . .
 Do not continue hill climbing or
hard towing for a long time in the
“3”, “2” or “L” position. This may
cause severe automatic transmis-
sion damage from overheating. To
prevent such damage, “4” position
should be used in hill climbing or
hard towing.
(e) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the selector lever to the
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
Vehicles with rear view monitor system—
When the selector lever is shifted into “R”
position with the ignition switch in the
“ON” position, rear view monitor system
will activate. For instructions, see “Rear
view monitor system” on page 337 in Sec-
tion 1 −9.
(f) Parking 1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down, fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down, shift the selector lever to the “P” posi-
tion.

04 SIENNA_U (L/O 0408)
182
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(g) Good driving practice
If the transmission repeatedly shifts up
and down between fourth gear and
overdrive when climbing a gentle slope,
shift the selector lever to the “4” posi-
tion. Be sure to shift the selector lever
to the “D” position immediately after-
ward.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use “D” position.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le-ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 429 in Section 4. The traction control system automatical-
ly helps prevent the spinning of front
wheels when the vehicle is started or
accelerated on slippery road surfaces.
When the ignition key is turned to “ON”,
the system automatically turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power against front wheels cannot be
maintained, even though the traction
control system is in operation. Do not
drive the vehicle under any speed or
maneuvering conditions which may
cause the vehicle to lose traction
control. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
Traction control system
(twowheel drive models)

04 SIENNA_U (L/O 0408)
183
2004 SIENNA from Aug. ’04 Prod. (OM45422U)
NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
You may hear a sound in the engine
compartment for a few seconds just after
the vehicle begins to move. This means
that the traction control system is in the
self−check mode, but does not indicate a
malfunction. When the traction control system is oper-
ating, the following conditions occur:
The system controls the spinning of the
front wheels. At this time, the slip indi-
cator light blinks.
You may feel vibration or noise in your
vehicle, caused by operation of the
brakes. This indicates the system is
functioning properly.
The slip indicator light comes on for a few
seconds when the ignition key is turned
to “ON”. If the indicator light does not
come on when the ignition is turned on,
contact your Toyota dealer.
TRACTION CONTROL OFF MODE
If your wheels get stuck in a ditch
when you are driving on a severe off
road and sand, turn off the traction
control system. This system that con-
trols engine performance interferes with
the process of freeing your wheels.
To turn off: Push “TRAC OFF” switch.
The “TRAC OFF” indicator light will come
on.
The vehicle stability control system is al-
ways activated, even if the traction control
system is turned off.
To turn on: Push “TRAC OFF” switch
once again.
The “TRAC OFF” indicator light will go off.