Page 559 of 672
5598-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
Indicates that the engine coolant temperature is
too highA buzzer also sounds.
P. 594
Indicates a malfunction in the vehicle’s charging
system.
Immediately stop the vehicle in a safe place
and contact your Toyota dealer. Continuing
to drive the vehicle may be dangerous.
(If equipped)
Indicates that the radar sensor is dirty or covered
with ice A buzzer also sounds.
Clean the sensor.
(If equipped)
Indicates that the dynamic radar cruise control
system is unable to judge vehicle-to-vehicle dis-
tance
A buzzer also sounds.
If the windshield wipers are on, turn them
off or set them to a mode other than AUTO
or high speed wiper operation.
Warning messageDetails/Actions
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5618-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
Indicates that engine oil level is lowThis message may appear if the vehicle is
stopped on a slope. Move the vehicle to a level
surface and check to see if the message disap-
pears.
A buzzer also sounds.
Check the level of engine oil, and add or
replace if necessary.
Indicates abnormal engine oil pressure A buzzer also sounds.
Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
(AWD models)
Indicates a malfunction in the Active Torque
Control 4WD system A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
Vehicles without a smart key system:
Indicates that the engine switch is turned to the
“LOCK” position, the key is removed and the
driver’s door is opened while the lights are turned
on.
Vehicles with a smart key system:
Indicates that the engine switch is turned off and
the driver’s door is opened while the lights are
turned on. A buzzer also sounds.
Turn the lights off.
Warning messageDetails/Actions
(Flashes)
Page 566 of 672

5668-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
InteriorbuzzerExterior buzzerWarning messageDetails/Actions
Power was turned off due to the
automatic power off function.
Next time when starting
the engine, increase the
engine speed slightly and
maintain that level for
approximately 5 minutes
to recharge the battery.
Con-
tinu-
ous The driver’s door was opened
while any shift position other
than P was selected without
turning off the engine switch.
Shift the shift position to P.
Con-
tinu-
ousContin-
uous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while any shift position
other than P was selected with-
out turning off the engine
switch.
Shift the shift position to P.
Bring the electronic key
back into the vehicle.
Once An attempt was made to start
the engine without the elec-
tronic key being present, or the
electronic key was not function-
ing normally.
Start the engine with the
electronic key present.
An attempt was made to drive
when the regular key was not
inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
Page 567 of 672

5678-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
Once3 times
The electronic key was carried
outside the vehicle and a door
other than the driver’s door was
opened and closed while the
engine switch was in a mode
other than off.
Bring the electronic key
back into the vehicle.
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while the shift position P
was selected without turning off
the engine switch.
Turn the engine switch off.
Bring the electronic key
back into the vehicle.
Once
Sounds
once for
5 sec-
onds
An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the engine switch
off.
Turn the engine switch off
and lock the doors again.
Once
An attempt was made to turn
the engine switch off when the
shift position was not in P.
To turn off the engine, first
shift the shift position to P
and then turn the engine
switch off.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
Page 568 of 672
5688-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
Once
Sounds
once for
5 sec-
onds
• An attempt was made to lockthe doors using the smart key
system while the electronic
key was still inside the vehi-
cle.
• An attempt was made to lock either front door by opening a
door and putting the inside
lock button into the lock posi-
tion, then closing the door
with the electronic key still
inside the vehicle.
Retrieve the electronic key
from the vehicle and lock
the doors again.
Once
• When the doors were
unlocked with the mechanical
key and then the engine
switch was pressed, the elec-
tronic key could not be
detected in the vehicle.
• The electronic key could not
be detected in the vehicle
even after the engine switch
was pressed two consecu-
tive times.
Touch the electronic key to
the engine switch while
depressing the brake
pedal.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 569 of 672

5698-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
8
When trouble arises
■Messages displays
The message illustrations used are intended as examples, and may differ
from the image that is actually displayed on the multi-information display.
■ Warning buzzer
P. 550
Once
The driver’s door was opened
and closed with the engine
switch turned off and then the
engine switch was put in
ACCESSORY mode twice with-
out the engine being started.
Press the engine switch
while depressing the brake
pedal.
During a engine starting proce-
dure in the event that the elec-
tronic key was not functioning
properly ( P. 588), the engine
switch was touched with the
electronic key.
Press the engine switch
within 10 seconds of the
buzzer sounding.
Once
The steering lock could not be
released within 3 seconds of
the engine switch being
pressed.
Press the engine switch
while depressing the brake
pedal and moving the
steering wheel left and
right.
Once
The electronic key has a low
battery.
Replace the electronic key
battery. ( P. 511)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 572 of 672
572
SIENNA_OM_OM08007U_(U)
8-2. Steps to take in an emergency
If you have a flat tire (vehicles with a
compact spare tire)
●Stop the vehicle in a safe place on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the engine.
● Turn on the emergency flashers. ( P. 536)
Your vehicle is equipped with a spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: P. 4 9 6
WARNING
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a fl at tire can damage the tire and the
wheel beyond repair, which could result in an accident.
Before jacking up the vehicle
Page 574 of 672

5748-2. Steps to take in an emergency
SIENNA_OM_OM08007U_(U)
WARNING
■Using the tire jack
Observe the following precautions.
Improper use of the tire jack may cause the vehicle to suddenly fall off
the jack, leading to death or serious injury.
●Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat
tire. Do not use it on other vehicles , and do not use other tire jacks for
replacing tires on this vehicle.
●Put the jack properly in its jack point.
●Do not put any part of your body und er the vehicle while it is supported
by the jack.
●Do not start or run the engine while your vehicle is supported by the
jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greater than that required to
replace the tire.
●Use a jack stand if it is necessary to get under the vehicle.
●When lowering the vehicle, make su re that there is no-one near the
vehicle. If there are people nearby, warn them vocally before lowering.