2003 TOYOTA SIENNA Owners Manual

03 SIENNA_U (L/O 0207)
52003 MY SIENNA (OM45410U)
1. Engine coolant temperature gauge
2. Tachometer
3. Service reminder indicators andindicator lights 4. Speedometer
5. Fuel gauge
6. Trip meter reset knob
7. Odometer and two trip meters
Instrument cluster overview

With tachometer

03 SIENNA_U (L/O 0207)
62003 MY SIENNA (OM45410U)
1. Engine coolant temperature gauge
2. Service reminder indicators andindicator lights
3. Speedometer 4. Odometer and two trip meters
5. Fuel gauge
6. Trip meter reset knob

Without tachometer

03 SIENNA_U (L/O 0207)
72003 MY SIENNA (OM45410U)
Brake system warning light∗1or
Driver ’s seat belt reminder light∗1
or Malfunction indicator lamp∗1
Low fuel level warning light∗1
Discharge warning light∗1
Low engine oil pressure warning light∗1
or Antilock brake system warning light∗1
Open door warning light∗1
SRS warning light∗1
Open power sliding door warning light∗1
Low windshield washer fluid level warning light∗1
Low tire pressure warning light∗1
Front passenger ’s seat belt reminder light∗1
Vehicle skid control system/traction control
system warning light∗1
Turn signal indicator lights
Indicator symbols on the instrument panel

03 SIENNA_U (L/O 0207)
82003 MY SIENNA (OM45410U)
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

03 SIENNA_U (L/O 0207)
92003 MY SIENNA (OM45410U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Keys and Doors
Keys10
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Engine immobiliser system 13
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Front doors 14
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Sliding door 16
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Power sliding door 19
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Wireless remote control 24
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Power windows 30
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Power rear quarter windows 32
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Center side windows and manual rear quarter windows 33
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Back door 34
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Hood 35
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Theft deterrent system 36
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Fuel tank cap 38
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Electric moon roof 40
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SECTION 1 2

03 SIENNA_U (L/O 0207)
102003 MY SIENNA (OM45410U)
Your vehicle is supplied with two kinds
of keys.1. Master key—This key works in every lock.
2. Sub key—This key will not work in the glove box.
To protect things locked in the glove box
when you have your vehicle parked, leave
the sub key with the attendant.
Since the front doors and sliding doors
can be locked without a key, you should
always carry a spare master key in case
you accidentally lock your keys inside the
vehicle.KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend you to write down the key
number and keep it in safe place.Your vehicle is supplied with two kinds
of keys. 1. Master key (black)—This key works in every lock. Your Toyota dealer will
need it to make you a new key with
builtin transponder chip.
2. Sub key (gray)—This key will not work in the glove box.
A transponder chip for engine immobiliser
system has been filled in the head of the
master and sub keys. These chips are
needed to enable the system to function
correctly, so be careful not to lose these
keys. If you make your own duplicate key,
you will not be able to cancel the system
or start the engine.
Keys (without engine
immobiliser system) Keys (with engine immobiliser
system)

03 SIENNA_U (L/O 0207)
112003 MY SIENNA (OM45410U)
To protect things locked in the glove box
when you have your vehicle parked, leave
the sub key with the attendant.
Since the front doors and sliding doors
can be locked without a key, you should
always carry a spare master key in case
you accidentally lock your keys inside the
vehicle.
NOTICE
When using a key containing a trans-
ponder chip, observe the following
precautions:
When starting the engine, do not
use the key with a key ring resting
on the key grip and do not press
the key ring against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts.
When starting the engine, do not
use the key with other transponder
keys around (including keys of oth-
er vehicles) and do not press other
key plates against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts. If
this happens, remove the key once
and then insert it again after taking
off other transponder keys (includ-
ing keys of other vehicles) from the
ring or while gripping or covering
them with your hand to start the
engine.

03 SIENNA_U (L/O 0207)
122003 MY SIENNA (OM45410U)
Do not bend the key grip.
Do not cover the key grip with any
material that cuts off electromagnet-
ic waves.
 Do not knock the key hard against
other objects.
 Do not leave the key exposed to
high temperatures for a long period,
such as on the dashboard and hood
under the direct sunlight.
 Do not put the key in water or
wash it in an ultrasonic washer.
 Do not use the key with electromag-
netic materials.
KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend you to write down the key
number and keep it in safe place.