2003 TOYOTA SIENNA warning lights

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)
1462003 MY SIENNA (OM45410U)
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 “ACC”. The SRS warning light should come on.
It goes off after about 6 seconds.
5. Turn the ignition key to “ON”, but do not start the engine.
All the service reminder indicators ex-
cept the open door warning light, open
power sliding door warning light and
SRS warning light should come on. The
“ABS” warning light, “VSC” warning
light, low tire pressure warning lights,
“TRAC OFF” indicator light and slip in-
dicator light go off after a few seconds. 6. Vehicles with a power sliding door sys-
tem:
Open the sliding door.
The open power sliding door warning
light should come on.
Close the sliding door.
The open power sliding door warning
light should go off.
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.

03 SIENNA_U (L/O 0207)
2552003 MY SIENNA (OM45410U)
To avoid serious personal injury and
damage to your vehicle which might re-
sult from battery explosion, acid burns,
electrical burns, or damaged electronic
components, these instructions must be
followed precisely.
If you are unsure about how to follow this
procedure, we strongly recommend that
you seek the help of a competent me-
chanic or towing service.
CAUTION
Batteries contain sulfuric acid
which is poisonous and corrosive.
Wear protective safety glasses when
jump starting, and avoid spilling
acid on your skin, clothing, or ve-
hicle.
If you should accidentally get acid
on yourself or in your eyes, remove
any contaminated clothing and flush
the affected area with water imme-
diately. Then get immediate medical
attention. If possible, continue to
apply water with a sponge or cloth
while en route to the medical office.
The gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardized jumper cables and do
not smoke or light a match while
jump starting.
Warning: Battery posts, terminals
and related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
NOTICE
The battery used for boosting must
be 12 V. Do not jump start unless you
are sure that the booster battery is
correct.
JUMP STARTING PROCEDURE1. If the booster battery is installed in another vehicle, make sure the vehicles
are not touching. Turn off all unneces-
sary lights and accessories.
2. If required, remove all the vent plugs from the booster and discharged batter-
ies. Lay a cloth over the open vents
on the batteries. (This helps reduce the
explosion hazard, personal injuries and
burns.)
3. If the engine in the vehicle with the booster battery is not running, start it
and let it run for a few minutes. During
jump starting, run the engine at about
2000 rpm with the accelerator pedal
lightly depressed.
(c) Jump starting

03 SIENNA_U (L/O 0207)
2842003 MY SIENNA (OM45410U)
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise.
Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For foldingdown rear seatbacks
and detachable rear seats, check that the
latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied.
Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission “Park” mecha-
nism
On a safe incline, check that your vehicle
is held securely with the selector lever in
“P” position and all brakes released.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See Section 73 for additional in-
formation.
Engine coolant level
Make sure the coolant level is between
the “FULL” and “LOW” lines on the see
through reservoir when the engine is cold.
See Section 72 for additional information.
Radiator, condenser and hoses
Check that the front of the radiator and
condenser are clean and not blocked with
leaves, dirt, or insects. See Section 72
for additional information.
Battery electrolyte level
Your Toyota has a maintenance free bat-
tery. You do not have to add distilled wa-
ter. For longer life of the battery, however,
see Section 73 for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See Section 72 for additional information.

03 SIENNA_U (L/O 0207)
3272003 MY SIENNA (OM45410U)
Instrument panel
9. HORN 10 A: Horn, theft deterrent sys-
tem
10. HAZARD 10 A: Emergency flashers
11. AM2 30 A: “IGN” and “STARTER”
fuses
12. HEAD (LH) 15 A: Lefthand headlight
(high beam)
13. RADIO NO.1 20 A: Car audio system
Instrument panel
14. DOME 10 A: Clock, personal lights,
vanity mirror lights, door courtesy
lights, luggage compartment light, open
door warning light, ignition switch light,
theft deterrent system, daytime running
light system, interior lights, air condi-
tioning system, wireless remote control,
garage door opener
15. ECUB 10 A: Cruise control system,
SRS warning light, power sliding door
16. FOG 20 A: Front fog lights
17. ABS NO.3 25 A: Vehicle skid control
system 18. ABS NO.2 25 A:
Vehicle skid control
system
19. HLP LH (LO) 10 A: Lefthand head-
light (low beam)
20. HLP RH (LO) 10 A: Righthand head-
light (low beam)
21. ABS NO.4 5 A: Vehicle skid control
system
22. HEATER 10 A: Air conditioning system,
rear window defogger
23. GAUGE 10 A: Gauges and meters,
service reminder indicators and warning
buzzers (except discharge and open
door warning light), power windows,
daytime running light system, backup
lights, power sliding door, auto anti
glare inside rear view mirror, compass
24. WIPER 25 A: Windshield wipers and
washer, rear window wiper and washer
25. MIRRORHEATER 10 A: Multiport fuel
injection system/sequential multiport
fuel injection system, outside rear view
mirror defogger
26. ECUIG 15 A: Cruise control system,
antilock brake system, vehicle skid
control system, locking with wireless
remote control system, theft deterrent
system