2010 TOYOTA PRIUS key

45
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
Back door (vehicles with entry function of front and back doors)
Press the unlock button to
unlock the doors.
The door cannot be unlocked for
3 seconds after the door is
locked.
Lock the back door again when
you leave the vehicle. The back
door will not lock automatically
after it has been opened and then
closed.
Press the lock button to lock the
doors.

46 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
Antenna location and effective range
■ Antenna location
Antennas outside cabin
Antennas inside cabin
Antenna outside luggage com-
partment

47
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
■
Effective range (areas within which the electronic key is
detected)
When locking or unlocking
the doors
The system can be operated
when the electronic key is
within about 2.3 ft. (0.7 m) of
outside front and back door
handles.
When starting the hybrid
system or changing
“POWER” switch modes
The system can be operated
when the electronic key is
inside the vehicle.
■Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors
have been locked/unlocked. (Locked: Once; Unlocked: Twice)
■ When the door cannot be locked using the topside sensor area
■ Conditions aff ecting operation
 P. 6 5
If the door will not lock even when the
topside sensor area is touched, try touch-
ing both the topside and underside sen-
sor areas at the same time.

48 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
■Switching the door unlock function
It is possible to set which doors the entry function unlocks.
Turn the “POWER” switch OFF.
When the indicator on the key surface is turned off, push and hold or for approximately 5 seconds while pushing the but-
ton on the key.
The setting changes each time an operation is performed, as shown below.
(When changing the setting continuously, release the buttons, wait for at
least 5 seconds, and repeat .)
STEP1
STEP2
STEP2
Multi-information displayUnlocking doorsBeep
Hold the driver’s door 
handle to unlock only the
driver’s door. Exterior: Beeps three
times
Interior: Pings once
Hold the passenger’s door
handle or back door
opener to unlock all the
doors.
Hold the front door handle
or back door opener to
unlock all the doors. Exterior: Beeps twice
Interior: Pings once

49
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
■
Battery-saving function
In the following circumstances, the entry function is disabled in order to pre-
vent the vehicle battery from discharging and electronic key battery from
depleting.
● 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 9 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 touching the door handle lock sensor area.
● The vehicle is locked/unlocked using the wireless remote control function 
( P. 63) or the mechanical key. ( P. 541)
■ Electronic key battery depletion
 P. 6 4

50 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
■To operate the system properly
Make sure to carry the electronic key when operating the system. Do not get
the electronic key too close to the vehicle when operating the system from
the outside of the vehicle.
Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operate properly.
(The alarm may go off accidentally, or the door lock prevention may not func-
tion.)
■ Note for the smart key system
● Even when the electronic key is within the effective range (detection
areas), the system may not operate properly in the following cases.
• The electronic key is too close to the window or outside door handle,
near the ground, or in a high place when the doors are locked or
unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear bumper center when the back door is locked or unlocked.
• The electronic key is on the instrument panel, luggage cover, floor or in the glove box when the hybrid system is started or “POWER” switch
modes are changed.
● As long as the electronic key is within the effective range, the doors may
be locked or unlocked by anyone. However, only the doors detecting the
electronic key can be used to unlock the vehicle.
● Even if the electronic key is not inside the vehicle, it may be possible to
start the hybrid system if the electronic key is near the window.
● When the lock operation is performed using the lock sensor, recognition
signals will be shown up to two consecutive times. After this, no recogni-
tion signals will be given.
● The doors may unlock or lock if a large amount of water splashes on the
door handle, such as in the rain or in a car wash when the electronic key
is within the effective range. (The doors will automatically be locked after
approximately 60 seconds if the doors are not opened and closed.)
● If the key is kept near the vehicle while it is being washed, water applied
to a door handle may cause the door to lock and unlock repeatedly. In
this event, place the key in a location 6 ft. (2 m) or more from the vehicle,
taking care not to lose the key.

51
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
●
If the key is inside the vehicle while it is being washed, water applied to a
door handle may cause a buzzer to sound. In this event, locking all doors
will cause the buzzer to stop sounding.
● It may not be possible to lock the doors if the sensor area is covered by
mud, ice, snow etc. In this event, try locking again after cleaning the
area, or lock by touching the sensor area on the underside of the door
handle.
● Fingernails may scrape against the door during operation of the door
handle. Be careful not to injure fingernails or damage the surface of the
door.
● Gripping the door handle when wearing a glove may not unlock or lock
the door.
● If the wireless remote control is used to lock the doors when the elec-
tronic key is near the vehicle, there is a possibility that the door may not
be unlocked by the smart key system. (Use the wireless remote control to
unlock the doors.)
● A sudden approach to the effective range or door handle operation may
prevent the doors from being unlocked. In this case, return the door han-
dle to the original position and check that the doors unlock before pulling
the door handle again.
● If there is another electronic key in the detection area, it may take slightly
longer to unlock the doors after the door handle is gripped.
■ When the vehicle is not dr iven for extended periods
● To prevent theft of the vehicle, do not leave the electronic key within 6 ft.
(2 m) of the vehicle.
● The smart key system can be deactivated in advance. ( P. 587)
■ Security feature
 P. 6 6

52 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
■Alarms and warning indicators
A combination of exterior and interior alarms are used to prevent theft of the
vehicle and unforeseeable accidents resulting from erroneous operation.
Take appropriate measures according to the warning message shown on the
multi-information display. ( P. 508)
The following table describes circumstances and correction procedures
when only alarms are sounded.
AlarmSituationCorrection procedure
Interior alarm
pings once and
exterior alarm
sounds once for
10 seconds
*1
An attempt was made to
lock the doors using the
entry function while the
electronic key was still
inside the passenger com-
partment Retrieve the elec-
tronic key from the
passenger compart-
ment and lock the
doors again
An attempt was made to
exit the vehicle and lock
the doors without first turn-
ing the “POWER” switch
OFF Turn the “POWER”
switch OFF and lock
the doors again
Exterior alarm
sounds once for
10 seconds An attempt was made to
lock the vehicle while a
door is open Close all of the doors
and lock the doors
again