2010 TOYOTA PRIUS Owners Manual

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

53
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
AlarmSituationCorrection procedure
Interior alarm
pings continu-
ously
*1
The “POWER” switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the “POWER” switch
was in ACCESSORY
mode) Turn the “POWER”
switch OFF and close
the driver’s door
Interior alarm
sounds continu-
ously
*1
When the “POWER”
switch is in ON mode or
ACCESSORY mode, an
attempt was made to open
the door and exit the vehi-
cle, and the shift position
was not in “P” Push the “P” position
switch and turn the
“POWER” switch OFF
Interior and exte-
rior alarms sound
continuously
*1
When the “POWER”
switch is in ON mode or
ACCESSORY mode, the
driver’s door was closed
after the key was carried
outside the vehicle, and
the shift position not in “P” Push the “P” position
switch, turn the
“POWER” switch OFF
and close the driver’s
door again

54 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
*1: A message will be shown on the multi-information display in the instru-ment cluster.
*2: If the hybrid system does not start when the electronic key is inside the vehicle, the electronic key battery may be depleted or there may be dif-
ficulties receiving signal from the key. ( P. 541)
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 hybrid system
without the electronic key
being present, or the elec-
tronic key was not func-
tioning normally Start the hybrid sys-
tem with the elec-
tronic 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 “POWER” switch
was not turned OFF
Turn the “POWER”
switch OFF and close
the driver’s door again
An occupant carried the
electronic key outside the
vehicle and closed the
door while the “POWER”
switch was not OFF Bring the electronic
key back into the vehi-
cle

55
1-2. Key information
1
Before driving
PRIUS_U (OM47668U) U.S.A.
■
If the smart key system does not operate properly
● Locking and unlocking the doors: Use the mechanical key. ( P. 541)
● Starting the hybrid system: P. 542
■ When the electronic key battery is fully depleted
 P. 460
■ Customization that can be co nfigured at Toyota dealer
Settings (e.g. smart key system) can be changed. 
(Customizable features P. 587)
■ Certification for the smart key system
For vehicles sold in the U.S.A.
FCC ID: NI4TMLF8-2
FCC ID: HYQ14ACX FCC ID: HYQ14ADF 
FCC ID: HYQ13CZD FCC ID: HYQ13CZE
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.
For vehicles sold in 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.

56 1-2. Key information
PRIUS_U (OM47668U) U.S.A.
CAUTION
■Caution regarding interfer ence with electronic devices
● People with implanted pacemakers or cardiac defibrillators should keep
away from the smart key system antennas. ( P. 46)
The radio waves may affect the operation of such devices. If necessary,
the entry function can be disabled. Ask your Toyota dealer for details, such
as the frequency of radio waves and timing of emitting the radio waves. 
Then, consult your doctor to see if you should disable the entry function.
● Users of any electrical medical device other than implanted pacemakers
and implanted cardiac defibrillators should consult the manufacturer of the
device for information about its operation under the influence of radio
waves. Radio waves could have unexpected effects on the operation of
such medical devices.
Ask your Toyota dealer for details for disabling the entry function.