2003 TOYOTA SIENNA automatic transmission

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1. Side defroster outlets
2. Side vents
3. Instrument cluster
4. Automatic transmission selector lever
5. Center vents
6. Garage door opener, garage dooropener box or aux iliary box
7. Electric moon roof switch, front personal light or front interior light
switch
8. Front personal lights or front interior light
9. Power door lock switches
10. Power window switches 11 . G l o v e b o x
12. Auxiliary boxes
13. Tilt steering lock release lever
14. Hood lock release lever
15. Parking brake pedal
16. Window lock switch
Instrument panel overview

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Overdriveoff indicator light
Cruise control indicator light
∗2
Automatic transmission indicator lights Headlight high beam indicator light
∗1: For details, see “Service reminder indicators and warning
buzzers” in Section 15.
∗2: If this light flashes, see “Cruise control” in Section 16. Slip indicator light
Traction control system off indicator light

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Instrument panel
Center pillar
OPENING AND CLOSING WITH “DOOR
L”, “DOOR R” AND “PWR DOOR”
SWITCHES
To open the door, push the switch. To
close the door, push the switch once
again. The door opens and closes com-
pletely.
The “DOOR L” and “DOOR R” switches
are on the instrument panel. The “PWR
DOOR” switch is on the center pillar.
“DOOR L” switch—To operate the left side
door.
“DOOR R” switch—To operate the right
side door.
“PWR DOOR” switch—To operate both
side doors.
Opening and closing can be performed by
the switches under the following condi-
tions:
The sliding door is unlocked.
The power sliding door system is on.
(The “PWR DOOR OFF” switch is
pushed out.)
To open the power sliding door when
the ignition key is in the “ON” position,
the transmission selector lever must be
in “P”. (To close the sliding door from
the fullyopened or halfopened posi-
tion, the transmission selector lever is
not required to be in “P”.)
Left and right side power sliding door
models—The left side power sliding door
does not operate when the fuel f iller door
is opened.
CAUTION
If you shift the automatic transmis-
sion selector lever out of “P” and
accelerate before the power sliding
door is closed completely, the sliding
door may reverse to the open posi-
tion. A child or others could fall out
of the vehicle and be injured. Always
make sure the power sliding door is
closed and latched before you start
driving.

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OPERATION OF INSTRUMENTS AND
CONTROLS
Ignition switch, Transmission and Parking brake
Ignition switch with steering lock148
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Automatic transmission 149
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Traction control system 152
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Vehicle skid control system 154
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Tire pressure warning system 156
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Parking brake 158
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Cruise control 158
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SECTION 1 6

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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” or “ACC” position and the
selector lever pulled toward you).
(a) Selector lever
The shift position is displayed on the in-
strument cluster.
P:Parking, engine starting and
key removal
R: Reverse
N: Neutral
D: Normal driving (with overdrive on)
2: Stronger engine braking
L: Maximum engine braking
Automatic transmission
Selector lever Overdrive switch
With the brake pedal
depressed, shift while pulling
the selector lever toward you.
(The ignition switch must be
in “ON” or “ACC” position.)
Shift while pulling
the selector lever
toward you.
Shift normally.

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(b) Overdrive switch
You can select either third gear (with
overdrive off) or fourth gear (with over-
drive on) by pushing this switch.
To turn the overdrive off, push the switch.
The “O/D OFF” indicator light should come
on. To turn the overdrive on again, push
the switch again. The “O/D OFF” indicator
light should go off.
Always drive your vehicle with the over-
drive on for better fuel economy and
quieter driving.
If the engine is turned off when the over-
drive is off and restarted, the overdrive
will automatically be on.Vehicles with cruise control—When the
cruise control is being used, even if you
downshift the transmission by pushing and
releasing the overdrive switch, engine
braking will not be enabled because the
cruise control is not cancelled.
For ways to decrease the vehicle speed,
see “Cruise control” in this section.
(c) Normal driving
1. Start the engine as instructed in “How to start the engine” in Section 3. The
transmission must be in “P” or “N”.
2. With your foot holding down the brake pedal, shift the selector lever to “D”.
When the lever is in the “D” position, the
automatic transmission system will select
the most suitable gear for running condi-
tions such as normal cruising, hill climb-
ing, hard towing, etc.
Always turn the overdrive on for better
fuel economy and quieter driving. If the
engine coolant temperature is low, the
transmission will not shift into overdrive
gear even with the overdrive on.
CAUTION
Never put your foot on the accelera-
tor pedal while shifting.
3. Release the parking brake and brake pedal. Depress the accelerator pedal
slowly for smooth starting.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
Push the overdrive switch. The “O/D
OFF” indicator light will come on and
the transmission will downshift to third
gear.
Shift into the “2” position. The trans-
mission will downshift to second gear
when the vehicle speed drops down to
or lower than 112 km/h (69 mph), and
stronger engine braking will be en-
abled.
Shift into the “L” position. The trans-
mission will downshift to first gear
when the vehicle speed drops down to
or lower than 58 km/h (36 mph), and
maximum engine braking will be en-
abled.
Vehicles with cruise control—When the
cruise control is being used, even if you
downshift the transmission by pushing and
releasing the overdrive switch, engine
braking will not be enabled because the
cruise control is not cancelled.

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For ways to decrease the vehicle speed,
see “Cruise control” in this section.
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(e) Using “2” and “L” positions
The “2” and “L” positions are used for
strong engine braking as described pre-
viously.
With the selector lever in “2” or “L”, you
can start the vehicle in motion as with the
lever in “D”.
With the selector lever in “2”, the vehicle
will start in first gear and automatically
shift to 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:
“2” 120 km/h (74 mph) . . . . . . . . . . .
“L” 64 km/h (40 mph) . . . . . . . . . . . .
 Do not continue hill climbing or
hard towing for a long time in the
“2” or “L” position. This may cause
severe automatic transmission dam-
age from overheating. To prevent
such damage, “D” position should
be used in hill climbing or hard
towing.
(f) 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.
(g) 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.
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.
(h) Good driving practice
If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope, the
overdrive should be turned off. Be sure
to turn the switch on immediately after-
ward.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.

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CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Do not hold the vehicle on an up-
grade with the accelerator pedal. It
can cause the transmission to over-
heat. Always use the brake pedal or
parking brake.
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.
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 when the
engine is started or just after the vehicle
is started. This means that the traction
control system is in the selfcheck mode,
but does not indicate a malfunction.
Traction control system