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86
PRIUS c_U
1-3. Theft deterrent system
Vehicles  without  a  smart  key  sys-
tem:  The  indicator  light  flashes
after  the  key  has  been  removed
from  the  power  switch  to  indicate
that the system is operating.
The  indicator  light  stops  flashing
after  the  registered  key  has  been
inserted  into  the  power  switch  to
indicate  that  the  system  has  been
canceled.
Vehicles with a smart key system: The indicator light flashes after the
power switch has been turned off to indicate that the system is  operat-
ing.
The indicator light stops flashing after the power switch has b een turned to
ACCESSORY or ON mode to indicate that the system has been canceled.
■ System maintenance
The vehicle has a maintenance-free type immobilizer system.
■ Conditions affecting operation
Depending  on  the  surrounding  environment  and  conditions,  the  im mobilizer
system  may  not  operate  properly.  This  may  prevent  the  hybrid  sy stem  from
starting. ( P. 141)
Immobilizer system
The  vehicle’s  keys  ha ve  built-in  transponder  chips  that  prevent
the hybrid system from starting if a key has not been previousl y
registered in the vehic le’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehi-
cle.
This  system  is  designed  to  help  prevent  vehicle  theft  but  does
not guarantee absolute security against all vehicle thefts.
: If equipped 
     
        
        Page 94 of 596
942. Instrument cluster
PRIUS c_U
*: These lights  turn on when  the power  switch  is turned to  the  “ON” position
(vehicles without a smart key system) or the power switch is tu rned to ON
mode (vehicles with a smart key system) to indicate that a system check is
being performed. They will turn off after the hybrid system is  on, or after a
few  seconds.  There  may  be  a  malfunction  in  a  system  if  a  light  does  not
come on, or turn off. Have the vehicle inspected by your Toyota  dealer. 
     
        
        Page 96 of 596

962. Instrument cluster
PRIUS c_U
*1: These lights  turn on when  the power  switch  is turned to  the  “ON” position
(vehicles without a smart key system) or the power switch is tu rned to ON
mode (vehicles with a smart key system) to indicate that a system check is
being performed. They will turn off after the hybrid system is  on, or after a
few  seconds.  There  may  be  a  malfunction  in  a  system  if  a  light  does  not
come on, or turn off. Have the vehicle inspected by your Toyota  dealer.
*2: The light flashes to indicate that the system is operating.
*3: This light turns on when the system is off.
*4: When  the  outside  temperature  is  approximately  37°F  (3°C)  or  lo wer,  the
indicator will flash for approximately 10 seconds, then stay on .
*4Low  outside  tempera-
ture indicator (P. 97)
WARNING
■If a safety system warning light does not come on 
Should  a  safety  system  light  suc h  as  the  ABS  or  SRS  warning  lig ht  not
come on when you start the hybrid system, this could mean that  these sys-
tems are not available to help protect you in an accident, whic h could result
in death or serious injury. Have the vehicle inspected by your  Toyota dealer
immediately if this occurs. 
     
        
        Page 99 of 596

992. Instrument cluster
2
Instrument cluster
PRIUS c_U
The brightness of the instrument panel lights can be adjusted by turn-
ing the dial.
Brighter
Darker
■The meters and multi-informat ion display illuminate when
Vehicles without a smart key system
The power switch is in the “ON” position.
Vehicles with a smart key system
The power switch is in ON mode.
■ The brightness of the instrument panel lights
When  the  tail  lights  are  turned  on,  the  brightness  will  be  redu ced  slightly
unless the control dial is turned up fully.
■ Outside temperature display
●In  the  following  situations,  the  correct  outside  temperature  ma y  not  be  dis-
played, or the display may take longer than normal to change.
• When stopped, or driving at low speeds (less than 16 mph [25 k m/h])
• When  the  outside  temperature  has  changed  suddenly  (at  the  entr ance/
exit of a garage, tunnel, etc.) 
● When “ ” or “E” is displayed, the system may be malfunctioning.
Take your vehicle to your Toyota dealer.
■ Engine speed
On  hybrid  vehicles,  engine  speed  is  precisely  controlled  in  ord er  to  help
improve fuel efficiency and reduce exhaust emissions etc.
There  are  times  when  the  engine  speed  that  is  displayed  may  dif fer  even
when vehicle operation and driving conditions are the same.
■ Unit of measure of the sp eedometer (on some models)
P. 106
Instrument panel light control
1
2 
     
        
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1072. Instrument cluster
2
Instrument cluster
PRIUS c_U
■The clock is displayed when
Vehicles without a smart key system
The power switch is in the “ON” position.
Vehicles with a smart key system
The power switch is in ON mode.
■ Eco score
●As the accelerator pedal is not depressed, the driven distance  using cruise
control (if equipped) is not included in the eco score.
● As the eco score evaluation differs according to driving conditions and envi-
ronmental factors, in some cases it may not be linked to fuel c onsumption. 
■ Eco savings
●Fuel cost and savings should be used as a guide only.
● Depending on refueling methods, driving conditions and environm ental fac-
tors, the actual and displayed fuel costs may differ.
● In  some  cases,  fuel  cost  and  savings  may  not  be  linked  to  the  eco  score
evaluation.
■ When disconnecting and reconnecting 12-volt battery terminals
The following information data will be reset:
●Clock
● Past record (aside from the top 3 results)
● 5 min./1 min. fuel consumption display
● Cruising range
● Average vehicle speed
● Driving time
● EV driving rate/EV driven distance
Additionally, some displays may return to their default setting s.
■ Liquid crystal display
Small  spots  or  light  spots  may  appear  on  the  display.  This  phen omenon  is
characteristic of liquid crystal displays, and there is no prob lem continuing to
use the display. 
     
        
        Page 117 of 596
117
3
Operation of
each component
PRIUS c_U 3-1.  Key information
Keys .................................. 118
3-2.  Opening, closing  and
lo cking the doors
Side doors ......................... 125
Back door .......................... 134
Smart key system ............. 139
3-3.  Adjusting the seats Front seats ........................ 148
Rear seats......................... 149
Head restraints.................. 153
3-4.  Adjusting the steerin g
wheel and mirrors
Ste ering wheel .................. 156
Inside rear view mirror ...... 158
Outside rear view  mirrors ............................. 159
3-5.  Opening and clos ing
t he windows
Power windows ................. 161
Moon roof .......................... 165 
     
        
        Page 118 of 596
118
PRIUS c_U
3-1. Key information
The following keys are provided with the vehicle.
Master keys
Operating the wireless remote control function
Valet key
Electronic keys
• Operating the smart key system
• Operating the wireless remote control function
Mechanical keys
Key number plate
Keys
The keys
Ty p e  AType B
Ty p e   C
1
2
3
4
5 
     
        
        Page 119 of 596
1193-1. Key information
3
Operation of each component
PRIUS c_U
Locks all the doors (P.   1 2 6 )
Unlocks all the doors ( P.   1 2 6 )
Sounds the alarm (press and hold) ( P. 120)
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. 517)
Wireless remote control (if equipped)
Vehicles  without  a  smart  key
systemVehicles with a smart key sys-
tem
Using the mechanical key (vehic les with a smart key system)
1
2
3