2009 TOYOTA SIENNA Owners Manual

5
When trouble arises
505
5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
Have the vehicle inspected immediately.Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging system.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low.
Warning lightWarning light/Details
(U.S.A.)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The emission control system;
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system;
• The seat belt pretensioner system.

506 5-2. Steps to take in an emergency
(U.S.A.)
(Canada) “ABS” warning light
Indicates a malfunction in:
•ABS; or
• The brake assist system.
“VSC” warning light
Indicates a malfunction in the VSC system or TRAC sys-
tem.
■ If the malfunction indicator lamp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after taking several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.
Warning lightWarning light/Details

5
When trouble arises
507
5-2. Steps to take in an emergency
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light Indicates that a door is not
fully closed. Check that all doors are
closed.
Low fuel level warning
light Indicates that remaining
fuel is about 3.0 gal. (11.4
L, 2.5 Imp. gal.) or less Refuel the vehicle.
Driver’s seat belt
reminder light
(warning buzzer)
*1
Warns the driver to fasten
his/her seat belt. Fasten the seat belt.
(on the center panel) Front passenger’s seat
belt reminder light
(warning buzzer)
*1
Warns the front passen-
ger to fasten his or her
seat belt.
Fasten the seat belt.
Low washer fluid warning
light Low level of washer fluid Fill the tank.

508 5-2. Steps to take in an emergency
(U.S.A.)Engine oil replacement
reminder light
Illuminates for about 3 sec-
onds and then flashes for
about 12 seconds approxi-
mately 4500 miles (7200
km) after the engine oil is
changed: Indicates that the
engine oil is scheduled to be
changed.
Check the engine oil, and
change if necessary.
Comes on and remains on if
the distance driven exceeds
5000 miles (8000 km): Indi-
cates that the engine oil
should be changed. Check and change the
engine oil.
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
Adjust the tire inflation
pressure.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system Have the system checked
by your Toyota dealer.
Third seat warning light*2
Indicates that the third
seat operation is not yet
complete. Complete the third seat
operation.
Warning lightWarning light/DetailsCorrection procedure

5
When trouble arises
509
5-2. Steps to take in an emergency
*1: Driver's and front passenger’s seat belt warning buzzers:
The driver’s and front passenger’s seat belt warning buzzers sound to alert
the driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds intermittently for 10 seconds after the vehicle has reached a
speed of 12 mph (20 km/h). Then, if the seat belt is still unfastened, the
buzzer will sound at a different tone for 20 more seconds.
*2: If equipped Dynamic laser cruise con-
trol master warning light
*2
Indicates a malfunction in
the dynamic laser cruise
control system. When the
light comes on, the alarm
sounds and the warning
code will appear on the
display.
P. 204
Warning lightWarning light/DetailsCorrection procedure

510 5-2. Steps to take in an emergency
■Front passenger detect ion sensor and passenger seat belt reminder
● If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash, even if a passen-
ger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passen-
ger, and the warning light may not operate properly.
■ Changing the engine oil (U.S.A. only)
Make sure to reset the oil change system. ( P. 442)
■
When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level.
Pushing the tire pressure warning reset switch does not turn off the tire
pressure warning light.
■The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (after several minutes).
■When a tire is replaced with a sp are tire (vehicles without run-flat
tires)
The compact spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire is replaced with the spare tire.
Replace the spare tire with the repair ed tire and adjust the proper tire
inflation pressure. The ti re pressure warning light will turn off after sev-
eral minutes.

5
When trouble arises
511
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition be
comes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition be comes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used. (Even if you use Toyota
wheels, the tire pressu re warning system may not work properly with
some types of tires.)
●If tire chains are used.
■If the tire pressure warning light comes on after blinking for 1
minute frequently
If the tire pressure warning light comes on after blinking for 1 minute fre-
quently when the engine switch is turned to the “ON” position, have it
checked by your Toyota dealer.
■ Customization that can be co nfigured at Toyota dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features P. 565) However, Toyota recommends that the
seat belt reminder buzzer be operational to alert the driver and front passen-
ger that the seat belts are not fastened.

512 5-2. Steps to take in an emergency
CAUTION
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause loss of vehicle control and re sult in death or serious injury.
●Vehicles with run-flat tires:
• Decelerate to the lowest appropr iate speed as soon as possible.
Do not drive over 55 mph (90 km/h).
• Check and adjust the tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Have
the tire replaced by the nearest Toyota dealer.
• Avoid abrupt maneuvering and brak ing. If the vehicle tires deterio-
rate, you could lose control of th e steering wheel or the brakes.
●Vehicles with standard tires:
• Stop your vehicle in a safe place as soon as possible. Adjust the
tire inflation pressure immediately.
• If the tire pressure warning light comes on even after tire inflation pressure adjustment, it is probable that you have a flat tire. Check
the tires. If the tire is flat, change to the spare tire and have the flat
tire repaired by the nearest Toyota dealer.
• Avoid abrupt maneuvering and brak ing. If the vehicle tires deterio-
rate, you could lose control of th e steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.