Page 517 of 596

5178-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52J11U)
Firmly depress the brake pedal and check that is displayed
on the multi-information display.
Press the “POWER” switch.
In the event that the “P OWER” switch still cannot be operated, contact
your Toyota dealer.
■ Stopping the hybrid system
Shift the shift lever 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 immediately when the battery is depleted.
(→P. 448)
■ Changing “POWER” switch modes
Release the brake pedal and press the “POWER” switch in above.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( →P. 189)
■ If the doors cannot be locked or unlocked by the smart key system
Lock and unlock the doors by the mechanical key or wireless remote contr\
ol.
■ When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features →P. 556)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 141)
3
4
3
Page 520 of 596
5208-2. Steps to take in an emergency
PRIUS c_U (OM52J11U)
Vehicles without a smart key system:
Maintain the engine speed of the second vehicle and start the
hybrid system of your vehicle by turning the engine switch to the
“ON” position.
Vehicles with a smart key system:
Maintain the engine speed of t he second vehicle and start the
hybrid system of your vehicle by turning the “POWER” switch to ON
mode.
Make sure the “READY” indicato r comes on. If the indicator does
not come on, contact your Toyota dealer.
Once the hybrid system has start ed, 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, ha ve the vehicle inspected at your
Toyota dealer as soon as possible.
6
7
8
9
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 560 of 596
5609-2. Customization
PRIUS c_U (OM52J11U)■
Illumination (→P. 383)
*1: Vehicles without a smart key system
*2: Vehicles with a smart key system
■
Seat belt reminder (→P. 479)
■Automatic air condi tioning system (→P. 374)
FunctionDefault settingCustomized
setting
Time elapsed before lights
turn off15 seconds
7.5 secondsOO
30 secondsOO
Operation when the doors
are unlockedOnOff—O
Operation after the engine
switch is turned to the
“LOCK” position
*1OnOff—O
Operation after the
“POWER” switch is turned
off
*2OnOff—O
Operation when you
approach the vehicle with
the electronic key on your
person
*2
OnOff—O
Interior light controlOnOff—O
12
FunctionDefault settingCustomized setting
Vehicle speed linked seat
belt reminder buzzer On Off — O
12
FunctionDefault settingCustomized
setting
A/C auto switch operationOnOffOO
Air conditioning control of
Eco drive modeOnOff—O
12
Page 586 of 596

586Alphabetical index
PRIUS c_U (OM52J11U)
Eco drive mode ........................ 199
Electric power steering ........... 264
Electronic keyIf the electronic key does not operate properly ........... 516
Emergency flashers Switch ................................... 466
Emergency, in case of
If a warning buzzer sounds ........................ 477, 486
If a warning light
turns on .............................. 477
If a warning message is displayed ............................ 486
If the electronic key does not operate properly ........... 516
If the hybrid system will
not start .............................. 514
If the vehicle becomes stuck ................................... 528
If the vehicle 12-volt battery is discharged .......... 518
If you have a flat tire ............ 501
If you lose your keys ............. 122
If you think something is
wrong.................................. 476
If your vehicle has to
be stopped in an
emergency.......................... 467
If your vehicle needs to
be towed ............................. 469
If your vehicle overheats ....... 524 Engine
Compartment ........................ 419
Engine switch ............... 184, 188
Hood ..................................... 416
How to start the hybrid
system ....... ................. 184, 188
Identification number ............ 533
If the hybrid system will not start .............................. 514
Ignition switch ............... 184, 188
Overheating .......................... 524
“POWER” switch................... 188
Engine coolant Capacity................................ 536
Checking............................... 423
Preparing and checking before winter ...................... 273
Engine oil Capacity................................ 535
Checking............................... 420
Preparing and checking before winter ...................... 273
Engine/power control unit
coolant Capacity................................ 536
Checking............................... 423
Preparing and checking before winter ...................... 273
Engine switch .................. 184, 188
EPS ........................................... 264
EV drive mode ......................... 195
Event data recorder................... 11
Exclusive jump starting terminal .................... 518
E
Page 593 of 596

593Alphabetical index
PRIUS c_U (OM52J11U)
SwitchAutomatic High Beam
switch ................................. 245
Cruise control........................ 250
Eco drive mode switch .......... 199
Emergency flasher switch ..... 466
Engine switch................ 184, 188
EV drive mode switch ........... 195
Fog light switch ..................... 208
Hazard light switch................ 466
Headlight switch.................... 204
Ignition switch ............... 184, 188
LDA (Lane Departure Alert) switch ................................. 242
Light switches ....................... 204
Power door lock switch ......... 129
PCS (Pre-Collision system) switch ..... ............... 230
“POWER” switch ................... 188
Power window switch............ 160
Rear window wiper and washer switch ..................... 214
Steering wheel audio
switches.............................. 283
VSC OFF switch ................... 265
Window lock switch............... 160
Wiper and washer ......... 210, 214 Tail lights
Replacing light bulbs ............ 462
Switch ................................... 204
Theft deterrent system Immobilizer system .. ............... 84
Theft prevention labels ........... 86
Theft prevention labels ............. 86
Tire inflation pressure............. 441
Tire information Glossary ............................... 551
Size....................................... 547
Tire identification number ..... 546
Uniform tire quality grading ............................... 549
Tires Chains .................................. 274
Checking............................... 432
If you have a flat tire ............. 501
Inflation pressure .................. 539
Inflation pressure sensor ...... 433
Information............................ 544
Replacing.............................. 501
Rotating tires ........................ 432
Size....................................... 539
Snow tires ............................. 275
Spare tire .............................. 501
Tire pressure warning system ....... ................. 433, 480T