TOYOTA SIENNA 2012 XL30 / 3.G Owners Manual

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5
When trouble arises
731
5-2. Steps to take in an emergency
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Warning lightWarning light/Details
(U.S.A.)
(Canada) “ABS” warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
Electric power steering system warning light
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
(comes on or flashes) Pre-collision system warni
ng light (if equipped)
Indicates a malfunction in the pre-collision system
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operating. (P. 336)
• The light will turn on when the pre-collision braking is dis- abled. ( P. 337)
• The light will turn on when the system cannot temporarily be used.
Slip indicator light Indicates a malfunction in:
• Enhanced VSC
•TRAC
The indicator will blink when the system listed above is
operational. ( P. 328)

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732 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
Warning lightWarning light/Details
(Flashes) Automatic High Beam indi
cator light (if equipped)
Indicates a malfunction in the Automatic High Beam sys-
tem ( P. 273)
(Flashes) Cruise control indicator
light (if equipped)
Indicates a malfunction in the cruise control system
( P. 293, 298)
(Flashes) Radar cruise control indicator light (if equipped)
Indicates a malfunction in the Dynamic radar cruise control
system ( P. 298)

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5
When trouble arises
733
5-2. Steps to take in an emergency
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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
(warning buzzer)
*1
Indicates that a door is not
fully closed. Check that all the doors are
closed.
Low fuel level warning
light Indicates remaining fuel is
approximately 3.0 gal.
(11.4 L, 2.5 Imp.gal.) or
less Refuel the vehicle.
Driver’s seat belt
reminder light
(warning buzzer)
*2
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)
*2
Warns the front passen-
ger to fasten his or her
seat belt.
Fasten the seat belt.
Master warning light A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning system
has detected a malfunc-
tion. P. 744

Page 734 of 860

734 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
Warning lightWarning light/DetailsCorrection procedure
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes (P. 738)
• Flat tire ( P. 745, 747) Adjust the tire inflation
pressure to the specified
level.
The light will turn off after
a few minutes. In case
the light does not turn off
even if the tire inflation
pressure is adjusted,
have the system checked
by your Toyota dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system
(  P. 740) Have the system checked
by your Toyota dealer.
Low windshield washer
fluid warning light
Low level of washer fluid Fill the tank.

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5
When trouble arises
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5-2. Steps to take in an emergency
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Warning lightWarning light/DetailsCorrection procedure
(U.S.A.) Maintenance required
reminder light
Indicates that mainte-
nance is requires accord-
ing to the driven distance
on the maintenance
schedule.
*3
Illuminates for about 3 sec-
onds and then flashes for
about 15 seconds approxi-
mately 4500 miles
(7200 km) after the mainte-
nance data has been reset. If necessary, perform main-
tenance.
Comes on and remains on if
the distance driven exceeds
5000 miles (8000 km) after
the maintenance data has
been reset. (The indicator
will not work property unless
the maintenance data has
been reset.) Perform the necessary
maintenance.
Please reset the mainte-
nance is performed.
(

P. 6 4 0)
Third seat warning light
(if equipped) Indicates that the third
seat operation is not yet
complete. Complete the third seat
operation.

Page 736 of 860

736 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
*1:Open door warning buzzer:A buzzer will sound if the vehicle reaches a speed of 3 mph (5 km/h) with any
door open.
*2: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.
*3:Refer to the separate “Scheduled Maintenance Guide” or “Owner’s ManualSupplement” for the maintenance interval applicable to your vehicle.
Warning lightWarning light/DetailsCorrection procedure
(AWD models) Active Torque Control
4WD system warning light
When the light blinks: The
system has been over-
loaded and front-wheel
drive has been automati-
cally engaged. Drop your speed or stop the
vehicle until the light stops
blinking. (Do not stop the
engine.)
When the light comes on:
Malfunction in the Active
Torque Control 4WD sys-
tem. Have the system checked
by your Toyota dealer.

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5
When trouble arises
737
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)

SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, driver’s seat position sensor, driver’s seat belt buckle switch, front pas-
senger occupant classification system (ECU and sensors), “AIR BAG ON”
indicator light, “AIR BAG OFF” indicator light, front passenger’s seat belt
buckle switch, seat belt pretensioner assemblies, inflators, interconnecting
wiring and power sources. ( P. 168)
■ Front passenger detection 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.
■ Electric power steering system warning light
When the voltage is low drops, the electric power steering system warning
light may come on.

Page 738 of 860

738 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
■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.

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 will not turn off the tire
pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflat ion pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire (vehicles with compact
spare tire)
The compact spare tire is not equipped with a 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 has been replaced with the spare
tire. Replace the spare tire with the re paired tire and adjust the tire infla-
tion pressure. The tire pressure wa rning light will go off after a few min-
utes.

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When trouble arises
739
5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
■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.

Page 740 of 860

740 5-2. Steps to take in an emergency
SIENNA_U (OM45477U)
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
Vehicles without a smart key system
If the tire pressure warning light frequently comes on after blinking 1
minute when the engine switch is turned to the “ON” position, have it
checked by your Toyota dealer.
Vehicles with a smart key system
If the tire pressure warning light frequently comes on after blinking 1
minute when the “ENGINE START STOP” switch is turned to IGNITION
ON mode, 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. 815) However, Toyota recommends that the
seat belt reminder buzzer be operational to alert the driver and front passen-
ger when seat belts are not fastened.

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