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9
The installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as:
● Hybrid system
● Multiport fuel injection system/sequential multiport fuel injection system
● Toyota Safety Sense 2.0
● Cruise control system
● Anti-lock brake system
● SRS airbag system
● Seat belt pretensioner system
Be sure to check with your Toyota dealer for precautionary meas ures or spe-
cial instructions regarding instal lation of a mobile two-way radio system.
High  voltage  parts  and  cables  on  the  hybrid  vehicles  emit  appro ximately  the
same  amount  of  electromagnetic  waves  as  the  conventional  gasoli ne  pow-
ered vehicles or home electronic appliances  despite of  their  el ectromagnetic
shielding.
Unwanted noise may occur in the reception of the mobile two-way radio.
Installation of a mobile  two-way radio system 

421-1. For safe use
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WARNING
■SRS airbag precautions
● If breathing becomes difficult after the SRS airbags have deplo yed, open a
door or side window to allow fresh air in, or leave the vehicle if it is safe to
do so. Wash off any residue as soon as possible to prevent skin  irritation. 
● If the areas where the SRS airbags are stored, such as the steering wheel
pad  and  front  and  rear  pillar  garnishes,  are  damaged  or  cracked ,  have
them replaced by your Toyota dealer.
● Do  not  place  anything,  such  as  a  cushion,  on  the  front  passenger’s  seat.
Doing so will disperse the passenger’s weight, which prevents t he sensor
from detecting the passenger’s weight properly. As a result, th e SRS front
airbags for the front passenger may not deploy in the event of  a collision.
■ Modification and disposal of  SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications
without consulting your Toyota dealer. The SRS airbags may malfunction or
deploy (inflate) accidentally, causing death or serious injury.
● Installation, removal, disassembly and repair of the SRS airbag s
● Repairs,  modifications,  removal  or  replacement  of  the  steering  wheel,
instrument panel, dashboard, seats or seat upholstery, front, s ide and rear
pillars,  roof  side  rails,  front  door  panels,  front  door  trims  o r  front  door
speakers
● Modifications to the front door panel (such as making a hole in it)
● Repairs  or  modifications  of  the  front  fender,  front  bumper,  or  side  of  the
occupant compartment
● Installation  of  a  grille  guard  (bull  bars,  kangaroo  bar,  etc.),   snow  plows,
winches or roof luggage carrier
● Modifications to the vehicle’s suspension system
● Installation  of  electronic  devices  such  as  mobile  two-way  radio s  and  CD
players
● Modifications to your vehicle for a person with a physical disa bility 

801-3. Emergency assistance
PRIUS_OM_OM47E09U_(U)■
Enhanced Roadside Assistance 
Enhanced  Roadside  As
sistance  adds  GPS  data  to  the  already
included warranty-based Toyota roadside service.
Subscribers can press the “SOS” button to reach a Safety Connec t
response-center  agent,  who  can  he lp  with  a  wide  range  of  needs,
such  as:  towing,  flat  tire,  fuel   delivery,  etc.  For  a  description  of  the
Roadside Assistance  services  an d  their  limitations,  please  see  the
Safety  Connect  Terms  and  Conditions,  which  are  available  at
Toyota.com  in  the  United  States, Toyotapr.com  in  Puerto  Rico  an d
Toyota.ca in Canada.
Important! Read this informatio n before using Safety Connect.
■Exposure to radio frequency signals
The Safety Connect system installed in your vehicle is a low-po wer
radio transmitter and receiver. I t receives and also sends out radio
frequency (RF) signals.
In  August  1996,  the  Federal  Communications  Commission  (FCC)
adopted RF exposure guidelines with safety levels for mobile wi re-
less  phones. Those  guidelines  are   consistent  with  the  safety  stan-
dards  previously  set  by  the  following  U.S.  and  international
standards bodies.
● ANSI (American National Stand ards Institute) C95.1 [1992]
● NCRP  (National  Council  on  Radi ation  Protection  and  Measure-
ment) Report 86 [1986]
● ICNIRP  (International  Commission  on  Non-Ionizing  Radiation
Protection) [1996]
Those standards were based on comprehensive and periodic eval-
uations of the relevant scienti fic literature. Over 120 scientists, engi-
neers,  and  physicians  from  unive rsities,  and  government  health
agencies and industries reviewed  the available body of research to
develop the ANSI Standard (C95.1).
The design of Safety Connect complies with the FCC guidelines i n
addition to those standards.
Safety information for Safety Connect 

901-4. Hybrid system
PRIUS_OM_OM47E09U_(U)
■If  a  warning  light  comes  on,  a  warning  message  is  displayed,  or  the
12-volt battery is disconnected
The hybrid system may not start. In this case, try to start the system again. If
the “READY” indicator does not come on, contact your Toyota dea ler.
■ Running out of fuel
When the vehicle has run out of fuel and the hybrid system cann ot be started,
refuel  the  vehicle  with  at  least  enough  gasoline  to  make  the  lo w  fuel  level
warning  light  ( P.  594)  go  off.  If  there  is  only  a  small  amount  of  fuel,  the
hybrid system may not be able to start. (The standard amount of  fuel is about
2.0 gal. [7.5 L, 1.7 Imp.gal.], when the vehicle is on a level  surface. This value
may  vary  when  the  vehicle  is  on  a  slope. Add  extra  fuel  when  th e  vehicle  is
inclined.)
■ Electromagnetic waves
●High  voltage  parts  and  cables  on  hybrid  vehicles  incorporate  el ectromag-
netic shielding, and therefore emit approximately the same amount of elec-
tromagnetic  waves  as  conventional  gasoline  powered  vehicles  or  home
electronic appliances.
● Your  vehicle  may  cause  sound  interference  in  some  third  party-p roduced
radio parts.
■ Hybrid battery ( traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of
the  hybrid  battery  (traction  battery)  can  change  in  accordance  with  driving
style and driving conditions.
■ Starting the hybrid system in a n extremely cold environment
When  the  hybrid  battery  (traction  battery)  is  extremely  cold  (b elow  approxi-
mately  -22°F  [-30°C])  under  the  influence  of  the  outside  temper ature,  it  may
not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to the
outside temperature increase etc. 

PRIUS_OM_OM47E09U_(U)
1813-1. Key information
3
Operation of each component
To  take  out  the  mechanical  key,
slide  the  release  lever  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  electro nic  key  bat-
tery  is  depleted  or  the  entry  function  does  not  operate  properl y,  you  will
need the mechanical key. ( P. 647)
■Panic mode
■ If you lose your mechanical keys
New  genuine  mechanical  keys  can  be  made  by  your  Toyota  dealer  u sing
another  mechanical  key  and  the  key  number  stamped  on  your  key  n umber
plate. Keep the plate in a safe place such as your wallet, not  in the vehicle.
■ When riding in an aircraft
When bringing an electronic key onto an aircraft, make sure you  do not press
any  buttons  on  the  electronic  key  while  inside  the  aircraft  cab in.  If  you  are
carrying  an  electronic  key  in  your  bag  etc.,  ensure  that  the  bu ttons  are  not
likely to be pressed accidentally. Pressing a button may cause  the electronic
key to emit radio waves that could interfere with the operation  of the aircraft.
Using the mechanical key
Release 
lever
When    is  pressed  for  longer  than
about  one  second,  an  alarm  will  sound
intermittently  and  the  vehicle  lights  will
flash  to  deter  any  person  from  trying  to
break into or damage your vehicle.
To stop the alarm, press any button on the
electronic key. 

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3-1. Key information
■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 an d a message
will  be  displayed  on  the  multi-information  display  when  the  hyb rid  system
stops.
● As the electronic  key always receives radio waves, the battery  will become
depleted even if the electronic key is not used. The following  symptoms indi-
cate  that  the  electronic  key  battery  may  be  depleted.  Replace  the  battery
when necessary. ( P. 560)
• The smart key system or the wireless remote control does not o perate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You  can  replace  the  battery  by  yourself  ( P.  560).  However,  as  there  is  a
danger  that  the  electronic  key  may  be  damaged,  it  is  recommende d  that
replacement is carried out by your Toyota dealer.
● 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
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers 

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3-1. Key information
NOTICE
■To prevent key damage
● Do not drop the keys, subject them to strong shocks or bend them.
● Do not expose the keys to high temperatures for long periods of  time.
● Do not get the keys wet or wash them in an ultrasonic washer et c.
● Do not attach metallic or magnetic materials to the keys or pla ce the keys
close to such materials.
● Do not disassemble the keys.
● Do not attach a sticker or anything else to the surface of the  electronic key.
● Do  not  place  the  keys  near  objects  that  produce  magnetic  fields ,  such  as
TVs, audio systems and induction cookers.
● Do  not  place  the  keys  near  medical  electrical  equipment  such  as   low-fre-
quency  therapy  equipment  or  microwave  therapy  equipment,  and  do   not
receive medical attention with the keys on your person.
■ Carrying the electronic key on your person
Carry  the  electronic  key  3.9  in.  (10  cm)  or  more  away  from  elec tric  appli-
ances  that  are  turned  on.  Radio  waves  emitted  from  electric  app liances
within 3.9 in. (10 cm) of the electronic key may interfere with the key, caus-
ing the key to not function properly.
■ In  case  of  a  smart  key  system  malfunction  or  other  key-related  prob-
lems
Take  your  vehicle  with  all  the  electronic  keys  provided  with  yo ur  vehicle  to
your Toyota dealer.
■ When an electronic key is lost
If  the  electronic  key  remains  lost,  the  risk  of  vehicle  theft  i ncreases  signifi-
cantly.  Visit  your  Toyota  dealer  immediately  with  all  remaining   electronic
keys that were provided with your vehicle. 

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3-2. Opening, closing and locking the doors
■Electronic Key Battery-Saving Function
When battery-saving mode is set, battery depletion is minimized  by stopping
the electronic key from receiving radio waves.
■ Conditions affecting operation
The  smart  key  system,  wireless  remote  control  and  immobilizer  s ystem  use
weak  radio  waves.  In  the  following  situations,  the  communication  between
the electronic key and the vehicle may be affected, preventing  the smart key
system, wireless remote control and immobilizer system from operating prop-
erly. (Ways of coping:  P. 647)
● When the electronic key battery is depleted
● Near  a  TV  tower,  electric  power  plant,  gas  station,  radio  stati on,  large  dis-
play,  airport  or  other  facility  that  generates  strong  radio  wav es  or  electrical
noise
● When  the  electronic  key  is  in  contact  with,  or  is  covered  by  the  following
metallic 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 other wireless key (that emit radio waves) is being used n earby
● When  carrying  the  electronic  key  together  with  the  following  devices  that
emit radio waves
• Portable radio, cellular phone, cordless phone or other  wirele ss commu-
nication devices
• Another vehicle’s electronic key or a wireless key that emits  radio waves
• Personal computers or personal digital assistants (PDAs)
• Digital audio players
• Portable game systems
● If  window  tint  with  a  metallic  content  or  metallic  objects  are  attached  to  the
rear window
● When  the  electronic  key  is  placed  near  a  battery  charger  or  ele ctronic
devices
Press    twice  while  pressing  and
holding  . Confirm that the electronic
key indicator flashes 4 times.
While  the  battery-saving  mode  is  set,  the
smart  key  system  cannot  be  used.  To
cancel the function, press any of the elec-
tronic key buttons.