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1203-1. Key information
PRIUS c_U
■Panic mode
Vehicles without a smart key system
Vehicles with a smart key system
■ If you lose your keys
New  genuine  keys  can  be  made  by  your Toyota  dealer  using  the  ot her  keys
(including mechanical key) and the key number stamped on your k ey number
plate. Keep the plate in a safe place such as your wallet, not  in the vehicle. 
■ When riding in an aircraft
When  bringing  a  key  with  wireless  remote  control  function  onto  an  aircraft,
make  sure  you  do  not  press  any  buttons  on  the  key  while  inside  the  aircraft
cabin. If you are carrying the key in your bag etc., ensure tha t the buttons are
not likely to be pressed accidentally. Pressing a button may cause the key to
emit radio waves that could interfere with the operation of the aircraft. 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 wireless remote control.
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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1213-1. Key information
3
Operation of each component
PRIUS c_U■
Key battery depletion
Vehicles without a smart key system
If  the  wireless  remote  control  function  does  not  operate,  the  b attery may be
depleted. Replace the battery when necessary. ( P. 449)
Vehicles with a smart key system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin wh en the hybrid
system stops. ( P. 500)
● 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. 449)
• 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.
● To avoid serious deterioration, do not leave the electronic key  within 3 ft. (1
m) of the following electrical appliances that produce a magnet ic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps
■ Replacing the battery
P. 449
■ Confirmation  of  the  registered   key  number  (vehicles  with  a  smar t  key
system)
The  number  of  keys  already  registered  to  the  vehicle  can  be  confirmed. Ask
your Toyota dealer for details.
■ If a wrong key is used (vehicles with a smart key system)
The key cylinder rotates freely to isolate inside mechanism.
■ Customization that can be configured at Toyota dealer
Settings (e.g. wireless remote control system) can be changed. 
(Customizable features:  P. 558) 
     
        
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1223-1. Key information
PRIUS c_U■
Certification for wireless remote control
For vehicles sold in the U.S.A. and Puerto Rico 
     
        
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1233-1. Key information
3
Operation of each component
PRIUS c_U
For vehicles sold in Canada 
     
        
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1243-1. Key information
PRIUS c_U
NOTICE
■To prevent key damage
Observe the following:
● 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  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  a s  micro-
wave  therapy  equipment  and  low-frequency  therapy  equipment)  or  carry
them on your person when receiving medical treatment.
■ Carrying  the  electronic  key  on  your  person  (vehicles  with  a  sma rt  key
system)
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 (vehicles with a smart key system)
Take  your  vehicle  with  all  the  electronic  keys  provided  with  yo ur  vehicle  to
your Toyota dealer.
■ When a vehicle key is lost (vehicles with a smart key system)
If  the  key  remains  lost,  the  risk  of  vehicle  theft  increases  significantly.  Visit
your Toyota  dealer  immediately  with  all  remaining  electronic  keys  that  was
provided with your vehicle. 
     
        
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125
3
Operation of each component
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3-2. Opening, closing and locking the doors
◆Entry function (if equipped)
Carry the electronic key to enable this function.
Grip  the  driver's  door  handle
to unlock the door.
* (Grip the
passenger's  door  handle  to
unlock all the doors.)
Make  sure  to  touch  the  sensor
on the back of the handle.
The  doors  cannot  be  unlocked
for 3 seconds after the doors are
locked.
*: The door unlock settings can be changed. ( P. 132)
Touch  the  lock  sensor  (the  indentation  on  the  side  of  the  door
handle) to lock the doors.
Check that the door is securely locked.
Side doors
Unlocking and locking the doors from the outside
1
2 
     
        
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1263-2. Opening, closing and locking the doors
PRIUS c_U
◆Wireless remote controlLocks all the doors
Check that the door is securely locked.
Unlocks all the doors
Pressing the button unlocks the driver’s door. Pressing the button again
within 3 seconds unlocks the other doors.
◆Key
Turning the key operates the doors as follows:
Vehicles without a smart key system
Locks all the doors
Unlocks all the doors
Driver’s  side  only:  Turning  the
key  unlocks  the  driver’s  door.
Turning  the  key  again  within  5
seconds  unlocks  the  other
doors.
Vehicles with a smart key system
The  doors  can  also  be  locked  and  unlocked  with  the  mechanical
key. ( P.   5 1 7 )
Vehicles  without  a  smart  key
systemVehicles with a smart key sys-
tem
1
2
1
2 
     
        
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1273-2. Opening, closing and locking the doors
3
Operation of each component
PRIUS c_U
■Operation signals
Vehicles without a smart key system
The  emergency  flashers  flash  to  indicate  that  the  doors  have  been  locked/
unlocked. (Locked: once; Unlocked: twice)
Vehicles with a smart key system
A buzzer sounds and the emergency flashers flash to indicate th at the doors
have been locked/unlocked. (Locked: once; Unlocked: twice)
■ Security feature
Vehicles without a smart key system
If  a  door  is  not  opened  within  approximately  60  seconds  after  t he  vehicle  is
unlocked, the security feature automatically locks the vehicle again.
Vehicles with a smart key system
If  a  door  is  not  opened  within  approximately  60  seconds  after  t he  vehicle  is
unlocked,  the  security  feature  automatically  locks  the  vehicle  again.  (How-
ever,  depending  on  the  location  of  the  electronic  key,  the  key  may  be
detected as being in the vehicle. In this case, vehicle may be  unlocked.)
■ When the door cannot be locked by  the lock sensor on the surface of the
door handle (vehicles with a smart key system)
■ Door lock buzzer
If  an  attempt  to  lock  the  doors  is  made  when  a  door  is  not  full y  closed,  a
buzzer sounds continuously. Fully close the door to stop the bu zzer, and lock
the vehicle once more.
■ If the smart key system or the wireless remote control does not operate
properly
Vehicles with a smart key system: Use the mechanical key to loc k and unlock
the doors. ( P. 517)
Replace the key battery with a new one if it is depleted. ( P. 449)
Use your palm to touch the lock sensor.