Page 560 of 664
5608-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(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)
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5618-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(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. 542
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. 581), 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. 503)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)
Page 564 of 664
564
SIENNA_OM_01999-08001_(U)
8-2. Steps to take in an emergency
If you have a flat tire (vehicles with a
compact spare tire)
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Stop the engine.
● Turn on the emergency flashers. ( P. 528)
Your vehicle is equipped with a spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: P. 4 8 8
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 566 of 664

5668-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(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.
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5768-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(U)
WARNING
■When using the compact spare tire
●Remember that the compact spare tire provided is specifically
designed for use with your vehicle. Do not use your compact spare tire
on another vehicle.
●Do not use more than one compact spare tire simultaneously.
●Replace the compact spare tire with a standard tire as soon as possi-
ble.
●Avoid sudden acceleration, abrupt steering, sudden braking and shift-
ing operations that cause sudden engine braking.
■When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
Also, not only can the following system not be utilized fully, but it may
even negatively affect the drive-train components:
• AWD system (if equipped)
■Speed limit when using the compact spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Fail-
ure to observe this precaution may lead to an accident causing death or
serious injury.
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in
their storage location to reduce the po ssibility of personal injury during a
collision or sudden braking.
■When stowing the flat tire
●Make sure the third seats are in their original position.
●Secure it using a tire strap. Otherwise, the flat tire may fly out in case
of sudden braking or an accident, resulting in death or serious injury.
• ABS & Brake assist
• VSC
•TRAC
• Dynamic radar cruise control (if equipped) • Cruise control (if equipped)
• PCS (if equipped)
• Navigation system (if equipped)
Page 578 of 664

578
SIENNA_OM_01999-08001_(U)
8-2. Steps to take in an emergency
If the engine will not start
One of the following may be the cause of the problem:
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting procedures.
( P. 223, 226)
● There may be a malfunction in the engine immobilizer system.
( P. 75)
One of the following may be the cause of the problem:
● The battery may be discharged. ( P. 583)
● The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as an electronic key battery depletion or a blown fuse.
However, an interim measure is available to start the engine.
( P. 579)
If the engine will not start even though correct starting proce-
dures are being followed ( P. 223, 226), consider each of the fol-
lowing points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor does not turn over (vehicles with a smart key
system)
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5798-2. Steps to take in an emergency
SIENNA_OM_01999-08001_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 583)
● There may be a malfunction in the steering lock system (vehicle
with a smart key system).
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning
normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the v ehicle inspected by your Toyota
dealer.
The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function (vehicles with a smart key system)
1
2
3
4
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580
SIENNA_OM_01999-08001_(U)
8-2. Steps to take in an emergency
If the shift lever cannot be shifted from P
Set the parking brake.
Turn the engine switch to the “ACC” position (vehicles without a
smart key system) or ACCESSORY mode (vehicles with a smart
key system).
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent tool.
To prevent damage to the cover,
cover the tip of the screwdriver with
a rag.
Press the shift lock override
button.
The shift lever can be shifted while
the button is pressed.
■ If the beep sounds continuously when the shift lever is shifted from P
(vehicles with an AUTO ACCESS SEAT)
The AUTO ACCESS SEAT may not be locked in place.
For details, refer to “AUTO ACCESS SEAT OWNER’S MANUAL”.
If the shift lever cannot be sh ifted with your foot on the brake
pedal, there may be a problem with the shift lock system (a sys-
tem to prevent accidental operation of the shift lever). Have the
vehicle inspected by your Toyota dealer immediately.
The following steps may be used as an emergency measure to
ensure that the shift lever can be shifted:
1
2
3
4
5