2014 TOYOTA PRIUS PLUS key battery

4037-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
■Warning messages
→ P. 399
■ Warning buzzer
→ P. 384
Once
The driver’s door was opened
and closed with the power
switch turned off and then the
power switch was put in
ACCESSORY mode twice with-
out the hybrid system being
started.
→ Press the power switch
while depressing the brake
pedal.
During a hybrid system starting
procedure in the event that the
electronic key was not function-
ing properly ( →P. 437), the
power switch was touched with
the electronic key.
→ Press the power switch
within 10 seconds of the
buzzer sounding.
Once
An attempt was made to start
the hybrid system with the shift
position in N.
→Shift the shift position to P
and start the hybrid sys-
tem.
Once
The electronic key has a low
battery.
→Replace the electronic key
battery. ( →P. 351)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Flashes)

4357-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
If the hybrid system will not start
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* (→ P. 437)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( →P. 8 7 )
● There may be a malfunction in the immobilizer system.
* (→ P. 9 1 )
● There may be a malfunction in the shift control system.
*
( → P. 204, 378, 390)
● The hybrid system may be malfunctioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. How-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( →P. 436)
*: It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( →P. 439)
● The 12-volt battery terminal connections may be loose or corroded.
(→ P. 327)
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( →P. 201)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.

4377-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
If the electronic key does not operate
properly
Use the mechanical key (→P. 139)
in order to perform the following
operations:
Locks all the doors
Unlocks all the doors
Depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
power switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
Press the power switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact
any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
If communication between the electronic key and vehicle is inter-
rupted ( →P. 154) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless
remote control cannot be used. In such cases, the doors can be
opened and the hybrid system can be started by following the pro-
cedure below.
Locking and unlocking the doors
1
2
Starting the hybrid system
1
2
3

4387-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
■Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the power switch
as you normally do when stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced imm ediately when the battery is depleted.
( → P. 351)
■ Alarm (if equipped)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set,
the alarm may be triggered. ( →P. 97)
■ Changing power switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press
the power switch.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( →P. 203)

4417-2. Steps to take in an emergency
PRIUS +_OM_OM47888E_(EE)
7
When trouble arises
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Maintain the engine speed of the second vehicle and start the
hybrid system of your vehicle by turning the power switch to ON
mode.
Make sure the “READY” indicator comes on. If the indicator light
does not come on, contact any authorized Toyota dealer or repairer,
or another duly qualified and equipped professional.
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.
When installing, first hook the fuse box cover onto the two rear tabs.
Once the hybrid system starts, have the vehicle inspected at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.
■Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
■ To prevent 12-volt battery discharge
●Turn off the headlights and the audio system while the hybrid system is off.
● Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■ When the 12-volt battery is removed or discharged
●The hybrid system may not start. ( →P. 328)
● If the 12-volt battery discharges while the shift position is in P, it may not be
possible to shift the shift position to other positions. In this case, the vehicle
cannot be towed without lifting both front wheels because the front wheels
will be locked. ( →P. 370)
● When the 12-volt battery is reconnected, start the hybrid system and con-
firm that the shift position can be changed to each position using the shift
position indicator.
● Make sure that the key is not inside the vehicle when recharging or replac-
ing the 12-volt battery. The key may be locked in the vehicle if the alarm is
activated. ( →P. 97)
4
5
6
7
8

474What to do if... (Troubleshooting)
PRIUS +_OM_OM47888E_(EE)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional. (→P. 139)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional immediately. ( →P. 141)
●Is the electronic key battery weak or depleted? ( →P. 351)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. ( →P. 203)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. ( →P. 154)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( →P. 145)
If you have a problem, check the following before contacting any
authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

475What to do if... (Troubleshooting)
PRIUS +_OM_OM47888E_(EE)
●Did you press the power switch while firmly depressing the brake pedal?
(→ P. 201)
●Is the shift position in P? ( →P. 201)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 151)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(→ P. 437)
●Is the 12-volt battery discharged? ( →P. 439)
●Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( →P. 186)
●The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. ( →P. 203)
If you think something is wrong
The hybrid system does not start
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

480Alphabetical index
PRIUS +_OM_OM47888E_(EE)
Card holder............................... 288
CareAluminum wheels .................. 301
Exterior.................................. 300
Interior ................................... 305
Panoramic roof...................... 304
Radar sensor ................ 246, 260
Seat belts .............................. 306
Cargo hooks ............................. 289
CD player
*
Chains ....................................... 266
Child restraint system ............... 59 Baby seat definition................. 60
Baby seat installation .............. 68
Child seat definition................. 60
Child seat installation .............. 70
Installing CRS with ISOFIX rigid anchors ......................... 74
Installing CRS with seat belt ... 68
Installing CRS with top strap ... 76
Junior seats definition ............. 60
Junior seat installation ............ 72
Child safety ................................ 58 12-volt battery precautions.... 329
Airbag precautions .................. 48
Back door precautions .......... 148
Child restraint system ............. 59
How your child should wear the seat belt .......................... 42
Installing child restraints.......... 67
Power window lock switch .... 186
Power window precautions ... 188 Rear door child-protectors .... 145
Removed key battery
precautions......................... 352
Seat belt precautions .............. 44
Seat heater precautions........ 279
Child-protectors....................... 145
Cleaning Aluminum wheels.................. 301
Exterior ................................. 300
Interior................................... 305
Panoramic roof ..................... 304
Radar sensor ................ 246, 260
Seat belts .............................. 306
Climate remote control ........... 278
Clock ......................................... 293
Condenser ................................ 324
Console box ............................. 284
Coolant Capacity ................................ 458
Checking ............................... 323
Preparing and checking before winter....................... 265
Cooling system ........................ 323 Hybrid system overheating ... 444
Consumption screen ............... 131
Cruise control Cruise control........................ 227
Dynamic radar cruise control................................. 231
Warning messages ............... 391
Cup holders.............................. 285
Curtain shield airbags ............... 46
Customizable features ............ 465
C