Page 521 of 596

5218-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52J11U)
■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.
■ Precautions when the 12-volt battery is discharged (vehicles with a
smart key system)
●In some cases, it may not be possible to unlock the doors using the smart
key system immediately after the 12-volt battery has been disconnected and
reconnected. Use the wireless remote control or the mechanical key to lock
or unlock the doors.
● The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.
● The “POWER” switch mode is memorized by the vehicle. When the 12-volt
battery is reconnected, the system will return to the mode it was in before
the 12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the “POWER” switch off.
If the “POWER” switch was in ACCESSORY or ON mode before the 12-volt
battery was discharged, the audio system and/or air conditioning system
may operate when the 12-volt battery is reconnected.
■ Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)
Page 557 of 596

5579-2. Customization
9
Vehicle specifications
PRIUS c_U (OM52J11U)
Settings that can be changed using the audio system
Settings that can be changed by your Toyota dealer
Definition of symbols: O = Available, — = Not available
■
Vehicle Proximity Notification System (→P. 7 4 )
■Smart key system*1 and wireless remote control (→P. 126, 135)
*1: If equipped
*2: Vehicles with a smart key system
Customizable Features
1
2
FunctionDefault settingCustomized setting
The volume of Vehicle
Proximity Notification Sys-
tem sound
Level 1
Level 2
—OLevel 3
12
FunctionDefault settingCustomized setting
Operation signal
(Emergency flashers) On Off — O
Operation signal
(Buzzer)
*2On Off — O
Operation buzzer vol-
ume
*2Level 5 Off to level 7 O O
Time elapsed before auto-
matic door lock function is
activated if door is not
opened after being
unlocked 60 seconds
30 seconds
OO
120 seconds
Open door warning
buzzer
*2OnOff —O
Automatic door lock func-
tion to be activated if door
is not opened after being
unlocked On Off — O
12
Page 558 of 596
5589-2. Customization
PRIUS c_U (OM52J11U)■
Smart key system* (→P. 126, 135, 140)
*: If equipped
■
Wireless remote control (→P. 120, 126, 135)
FunctionDefault settingCustomized setting
Smart key system OnOff — O
Smart door unlocking Driver’s door All the doors O O
Number of permissible
times of continuous smart
lock Twice
Unlimited — O
12
FunctionDefault settingCustomized
setting
Wireless remote control OnOff — O
Unlocking operation Driver's door
unlocked in one step, all doors
unlocked in two
steps All doors unlocked
in one step. OO
Panic function OnOff — O
12
Page 588 of 596

588Alphabetical index
PRIUS c_U (OM52J11U)
I/M test ...................................... 412
IdentificationEngine................................... 534
Tire........................................ 544
Vehicle .................................. 533
Ignition switch ................. 184, 188
Illuminated entry system ........ 385
Immobilizer system ................... 84
Indicator lights ........................... 88
Initialization Items to initialize ................... 561
Inside rear view mirror ............ 157
Interior lights Switch ................................... 384
Wattage ................................ 540
iPod ........................................... 306
Jack Positioning a floor jack .......... 418
Vehicle-equipped jack........... 502
Jack handle .............................. 502 Keyless entry ................... 126, 135
Keys
Electronic key ....................... 120
Engine switch ............... 184, 188
If the electronic key does not operate properly ........... 516
If you lose your keys ............. 122
Ignition switch ............... 184, 188
Key battery ........................... 448
Key number .......................... 120
Keyless entry ........................ 121
Keys...................................... 120
Mechanical key ..................... 121
“POWER” switch................... 188
Wireless remote control key...................................... 121
Knee airbag ................................ 39
I
J
K
Page 595 of 596

595Alphabetical index
PRIUS c_U (OM52J11U)
Warning buzzersBrake system ....... ................. 477
Electric power steering system ......... ....................... 478
Key reminder ........................ 495
LDA
(Lane Departure Alert)........ 240
Master warning ..................... 479
Pre-Collision warning ............ 480
Seat belt reminder ................ 479
Warning lights
Anti-lock brake system.......... 478
Brake assist system .............. 478
Brake system ....... ................. 477
Charging system ................... 478
Electric power steering system ......... ....................... 478
Front passenger occupant classification system........... 478
Low brake fluid...................... 477
Low fuel level ........................ 479
Low tire inflation pressure ..... 480
Malfunction indicator lamp .... 478
Master warning light.............. 479
Parking brake........................ 478
PCS warning light ................. 480
Pretensioners........................ 478
Seat belt reminder light ......... 479
Slip indicator light.................. 479
SRS airbag system ............... 478
Tire pressure......................... 480
Tire pressure warning system ......... ....................... 480 Warning messages.................. 486
Washer
Checking............................... 427
Preparing and checking before winter ...................... 273
Switch ........................... 210, 214
Washing and waxing ............... 400
Weight Cargo capacity...................... 181
Load limits ............................ 181
Weight .................................. 532
Wheels ...................................... 444
Window lock switch ................ 160
Windows Power windows..................... 160
Rear window defogger.......... 376
Washer ......................... 210, 214
Windshield wipers ................... 210
Wireless remote control key Replacing the key battery ..... 448
Wireless remote control ........ 121
WMA disc ................................. 300
W