2012 TOYOTA SIENNA battery

TABLE OF CONTENTSIndex
6
SIENNA_U (OM45477U)
4-1. Maintenance and careCleaning and protecting the vehicle exterior ........... 630
Cleaning and protecting the vehicle interior ............ 635
4-2. Maintenance Maintenance requirements .................... 639
General maintenance ......... 642
Emission inspection and maintenance (I/M)
programs .......................... 646
4-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 647
Hood................................... 651
Positioning a floor jack ....... 653
Engine compartment .......... 655
Tires ................................... 672
Tire inflation pressure......... 683
Wheels ............................... 687
Air conditioning filter ........... 690
Wireless remote control/electronic key
battery .............................. 693
Checking and replacing fuses ................................ 696
Light bulbs .......................... 709 5-1. Essential information
Emergency flashers ............ 722
If your vehicle needs to be towed ................................ 723
If you think something is wrong ................................ 727
Fuel pump shut off system .............................. 728
5-2. Steps to take in an emergency If a warning light turns on or a warning buzzer
sounds... ........................... 729
If a warning message is displayed .......................... 744
If you have a flat tire (vehicles with run-flat
tires) ................................. 745
If you have a flat tire (vehicles with standard
tires) ................................. 747
If the engine will not start .... 762
If the shift lever cannot be shifted from P ................... 764
If you lose your keys ........... 766
If the electronic key does not operate properly ......... 767
If the battery is discharged ........................ 770
If your vehicle overheats..... 775
If the vehicle becomes stuck ................................. 778
If your vehicle has to be stopped in an
emergency ........................ 780
4Maintenance and care5When trouble arises

33
1-1. Key information
1
Before driving
SIENNA_U (OM45477U)
Using the mechanical key (vehicles with a smart key system)
To take out the mechanical key,
push the release button and take
the key out.
The mechanical key can only be
inserted in one direction, as the
key only has grooves on one
side. If the key cannot be inserted
in a lock cylinder, turn it over and
re-attempt to insert it.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical key together with
the electronic key. If the electronic
key battery is depleted or the
entry function does not operate
properly, you will need the
mechanical key. (P. 767)

43
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
*1: A message will be shown on the multi-information display in the instru-
ment cluster.
*2: If the engine does not start when the electronic key is inside the vehicle,the electronic key battery may be depleted or there may be difficulties
receiving signal from the key. ( P. 693)
■ Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
AlarmSituationCorrection procedure
Interior alarm
pings once
*1
The electronic key has a
low battery Replace the electronic
key battery
An attempt was made to
start the engine without the
electronic key being
present, or the electronic
key was not functioning
normally Start the engine with
the electronic key
present
*2
Interior alarm
pings once and
exterior alarm
sounds 3 times
*1
The driver’s door was
closed after the key was
carried outside the vehicle,
and the “ENGINE START
STOP” switch was not
turned offTurn the “ENGINE
START STOP” switch
OFF and close the
driver’s door again
An occupant carried the
electronic key outside the
vehicle and closed the
door while the “ENGINE
START STOP” switch was
not off Bring the electronic
key back into the vehi-
cle

45
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
■
Battery-saving function
In the following circumstances, the entry function is disabled in order to pre-
vent the vehicle battery from discharging and the electronic key battery from
discharging.
● When the entry function has not been used for 5 days or more
● When the electronic key has been left within approximately 6 ft. (2 m) of
the vehicle for 10 minutes or more
● If the entry function has not been used for 14 days or more, the vehicle
cannot be unlocked by a door other than the driver’s door. To unlock the
vehicle, grip the driver’s door handle or use the wireless remote control
or the mechanical key.
The system will resume operation when...
● The vehicle is locked using the lock sensor when carrying the electronic
key on your person.
● The vehicle is locked/unlocked using the wireless remote control.
(P. 5 3 )
● The vehicle is locked/unlocked using the mechanical key. ( P. 767)

46 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
■Conditions affecting operation
The smart key system uses weak radio waves. In the following situations,
the communication between the electronic key and the vehicle may be
affected, preventing the smart key system and wireless remote control from
operating properly. (Way of coping P. 767)
● When the electronic key battery is depleted
● Near a TV tower, electric power plant, gas station, radio station, large dis-
play, airport or other facility that generates strong radio waves or electri-
cal noise
● When carrying a portable radio, ce llular phone, cordless phone or other
wireless communication devices
● When the electronic key is in contact with, or is covered by the following
objects
• Cards to which aluminum foil is attached
• Cigarette boxes that have aluminum foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
● When multiple electronic keys are in the vicinity
● When another wireless key (that emits radio waves) is being used nearby
● When carrying or using the electronic key together with the following
devices that emit radio waves
• Another vehicle’s electronic key
• A wireless key that emits radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems

50 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
■Electronic key battery depletion
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the
engine stops. ( P. 41)
● As the electronic key always receives radio waves, the battery will
become depleted even if the electronic key is not used. The following
symptoms indicate that the electronic key battery may be depleted.
Replace the battery when necessary. ( P. 693)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To avoid serious deterioration, do not leave the electronic key within 3 ft.
(1 m) of the following electrical appliances that produce a magnetic field.
•TVs
• Personal computers
• Recharging cellular phones or cordless phones
• Cellular phones, cordless phones and battery chargers
• Glass top ranges
• Table lamps
■ When the electronic key battery is fully depleted
 P. 693
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. smart key system) can be changed.
(Customizable features P. 815)

58 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
■Conditions affecting operation
Vehicles without a smart key system
The wireless remote control function may not operate normally in the follow-
ing situations:
● Near a TV tower, radio station, electr ic power plant, airport or other facil-
ity that generates strong radio waves
● When carrying a portable radio, cell ular phone or other wireless commu-
nication devices
● When multiple wireless keys are in the vicinity
● When the wireless key is in contact with, or is covered by, a metallic
object
● When a wireless key (that emits radio waves) is being used nearby
● When the wireless key has been left near an electrical appliance such as
a personal computer
● If window tint with a metallic content or metallic objects is attached to the
rear window
● Vehicles with AUTO ACCESS SEAT: If the wireless remote control of the
AUTO ACCESS SEAT is operated simultaneously, the AUTO ACCESS
SEAT may not operate properly.
For details, refer to “AUTO ACCESS SEAT OWNER’S MANUAL”.
Vehicles with a smart key system
 P. 4 6
■ If the wireless remote control does not operate properly (vehicles with
a smart key system)
Locking and unlocking the doors: Use the mechanical key. ( P. 767)
■ Key battery depletion
Vehicles without a smart key system
If the wireless remote control function does not operate, the battery may be
depleted. Replace the battery when necessary. ( P. 693)
Vehicles with a smart key system
 P. 5 0

59
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
■
When the electronic key battery is fully depleted
 P. 693
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. operation signal) can be changed.
(Customizable features P. 815)
■ Certification for wireless remote co ntrol (vehicles without a smart key
system)
This device complies with Part 15 of the FCC Rules and with RSS-210 of
Industry Canada. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired
operation.
■ Certification for wireless remote control (vehicles with a smart key sys-
tem)
U.S.A.
FCC ID: HYQ14ADR FCC ID: HYQ14AEH
FCC ID: HYQ13CZM FCC ID: HYQ13CZN
FCC ID: NI4TMLF8-20
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, includ-
ing interference that may cause undesired operation of the device.