Page 439 of 620
439
PRIUS v_OM_OM47B12U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
12-volt batter y
The 12-volt battery is located in
the right-hand side of luggage
compartment.
Open the center and right side deck boards. (P. 382)
Remove the center auxiliary box. (P. 524)
Remove the right side auxiliary
box.
Location
Removing the 12-volt battery maintenance cover
1
2
3
Page 511 of 620

5118-2. Steps to take in an emergency
PRIUS v_OM_OM47B12U_(U)
8
When trouble arises
An attempt was made to change the shift position
to R while the vehicle was moving forward.
A buzzer also sounds.
The shift position automatically changed to N.
Stop the vehicle, and then change the shift
position.
Indicates that the P position switch is pressed
while the vehicle is running.
A buzzer also sounds.
The shift position automatically changed to N.
To shift the shift position to P, stop the
vehicle completely and press the P posi-
tion switch.
To continue driving, shift the shift position
to D or R.
Insufficient 12-volt battery charge
The parking lock mechanism may not function.
The hybrid system may not be able to start.
The power switch may not be able to be turned
off. In this case, the power switch may be
turned off by applying the parking brake.
After charging the 12-volt battery, the message
may continue to be displayed until the shift
position is changed from P.
A buzzer also sounds.
When parking, choose a level location and
apply the parking brake securely.
Maintain the hybrid system operation state
for approximately 15 minutes or more to
recharge the 12-volt battery.
The hybrid system will not start: Start the
hybrid system by following the “If the
12-volt battery is discharged” procedure
(P. 538).
If the message does not disappear: The
12-volt battery may be deteriorating.
The 12-volt battery may be discharged if
this continues. Have the 12-volt battery
inspected at your Toyota dealer.
Warning messageDetails/Actions
(Flashes)
(Flashes)
Page 607 of 620

607Alphabetical index
PRIUS v_OM_OM47B12U_(U)
Doors
Automatic door locking
and unlocking system ......... 123
Back door.............................. 125
Door glasses ......................... 153
Door lock............................... 120
Open door warning buzzer ... 493
Open door warning light........ 493
Outside rear view mirrors...... 151
Rear door child-protectors .... 123
Side doors............................. 120
Drive information ..................... 102
Driver’s seat belt reminder
light......................................... 494
Driving
Break-in tips .......................... 159
Correct posture ....................... 30
Driving in the rain .................. 159
Driving mode select switch ... 245
Hybrid vehicle driving tips ..... 260
Procedures ........................... 158
Winter drive tips .................... 263
Dynamic radar cruise control
Function ................................ 214
Warning message ......... 505, 506ECB (Electronically
Controlled Brake System) .... 246
Eco drive mode........................ 245
EDR (Event data recorder)........ 11
Electric motor
Location .................................. 73
Specification ......................... 554
Electric Power Steering (EPS)
Function ................................ 246
Warning light......................... 491
Electronic key
If the electronic key does
not operate properly ........... 536
Replacing the battery............ 461
Electronically Controlled
Brake System (ECB) ............. 246
Emergency flashers ................ 482
Emergency, in case of
If a warning buzzer sounds... 490
If a warning light turns on ..... 490
If a warning message is
displayed ............................ 503
If the 12-volt battery is
discharged.......................... 538
If the electronic key does
not operate properly ........... 536
If the hybrid system will
not start .............................. 534E
Page 610 of 620

610Alphabetical index
PRIUS v_OM_OM47B12U_(U)
High mounted stoplight
Replacing .............................. 478
Hill-start assist control............ 247
Hood ......................................... 421
Hooks
Cargo hooks ......................... 381
Retaining hooks (floor mat)..... 28
Horn .......................................... 147
Hybrid battery (traction battery)
Location .................................. 77
Specification ......................... 555
Hybrid battery
(traction battery)
air intake vent .......................... 78
Hybrid system ............................ 73
Emergency shut off system .... 78
Energy
monitor/consumption
screen......................... 102, 108
EV drive mode ...................... 179
High voltage components ....... 77
Hybrid System Indicator.......... 98
Hybrid system precautions ..... 77
Hybrid vehicle driving tips ..... 260
If the hybrid system will
not start .............................. 534
Overheating .......................... 543
Power switch......................... 174
Regenerative braking.............. 75
Starting the hybrid system .... 174
Vehicle proximity
notification system ................ 74
Hybrid System Indicator ........... 98
Hybrid transmission ................ 181I/M test ...................................... 418
Identification
Engine .................................. 554
Vehicle .................................. 553
Ignition switch
(Power switch)....................... 174
Auto power off function ......... 176
Changing the power
switch modes ..................... 176
If your vehicle has to be
stopped in an emergency ... 483
Starting the hybrid system .... 174
Ignition switch light
(power switch light) .............. 373
Illuminated entry system ........ 375
Immobilizer system ................... 82
Indicators ................................... 86
Initialization
Items to initialize ................... 583
Maintenance data ................. 414
Tire pressure warning
system ................................ 445
Inside rear view mirror ............ 149
Instrument panel light
control ...................................... 94
Interior lights ........................... 373
Switch ........................... 374, 375
Wattage ................................ 560I