Page 533 of 621

532
PRIUS v_OM_OM47887U_(U)
8-2. Steps to take in an emergency
If the hybrid system will not star t
One of the following may be the cause of the problem:
●The electronic key may not be functioning properly.
* ( P. 534)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 79)
● There may be a malfunction in the immobilizer system.
* ( P. 8 2 )
● There may be a malfunction in the shift control system.
*
( P. 175, 490, 503)
● 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. 533)
*: 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. 536)
● The 12-volt battery terminal con nections may be loose or corroded.
( P. 437)
Reasons for the hybrid system not starting vary depending on
the situation. Check the follo wing and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 172)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 534 of 621

5338-2. Steps to take in an emergency
PRIUS v_OM_OM47887U_(U)
8
When trouble arises
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 536)
● One or both of the 12-volt batter y terminals may be disconnected.
( P. 437)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to st art the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in cases of emergency.
Set the parking brake.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer.
The interior lights and headlight s do not turn on, or the horn
does not sound.
Emergency start function
1
2
3
Page 603 of 621

602Alphabetical index
PRIUS v_OM_OM47887U_(U)
AntennaSmart key system ................. 130
Radio .................................... 289
Anti-lock brake system (ABS) ...................................... 244
Function ................................ 244
Warning light ......................... 489
Approach warning ................... 217
Armrest ..................................... 385
Assist grips .............................. 386
Audio input............................... 271
Audio system
(Eutune Audio) ...................... 267 Antenna ................................ 289
Audio input ............................ 271
AUX port ............................... 306
Basic operations ................... 272
Bluetooth
® audio................... 319
CD player .............................. 290
iPod....................................... 296
MP3/WMA disc ..................... 290
Optimal use........................... 286
Portable music player ........... 271
Radio .................................... 288
Steering wheel audio switches.............................. 270
USB memory ........................ 301
Audio system (Eutune Premium Audio with Navigation)
*
Automatic air conditioning system Air conditioning filter ............. 455
Automatic air conditioning system ......... ....................... 362 Automatic door locking
and unlocking systems ........ 123
Automatic headlight leveling system ..................... 190
Automatic High Beam ............. 192
Automatic light control
system.................................... 190
AUX port ................................... 271
Auxiliary boxes ................ 378, 380
Back door ................................. 125
Back-up lights Replacing light bulbs ............ 474
Wattage ................................ 558
Battery (12-volt battery) Battery checking ................... 437
If the 12-volt battery is
discharged.......................... 536
Preparing and checking
before winter ...................... 261
Warning light......................... 488
Battery (traction battery) .......... 77
Bluetooth
®............................... 350
Audio system ....... ................. 319
Hands-free system (for cellular phone) ............. 321
Registering/removing a Bluetooth
® device ........... 313
Selecting a Bluetooth®
device ................................. 315
Wireless communication....... 308
B