Page 362 of 644
362 3-3. Using the interior lights
PRIUS_OM_OM47A17U_DVD_(U)
■Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode, the
presence of the electronic key, whether the doors are locked/unlocked, and
whether the doors are opened/closed.
■ To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the inte-
rior light switch (door position on/off) is on, the lights will go off automatically
after 20 minutes.
■ Customization
Setting (e.g. The time elapsed before lights turn off) can be changed. 
(Customizable features  P. 606)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.
Rear interior light 
     
        
        Page 371 of 644
371
3-5. Other interior features
PRIUS_OM_OM47A17U_DVD_(U)
3
Interior features
Vanity mirrors
NOTICE
■To prevent 12-volt battery discharge
Do not leave the vanity lights on for extended periods while the hybrid sys-
tem is off.
Slide the cover to open.
The light turns on when the
cover is opened.
ITO36P103 
     
        
        Page 471 of 644
471
4-3. Do-it-yourself maintenance
PRIUS_OM_OM47A17U_DVD_(U)
4
Maintenance and care
FUSEAmpereCircuit
31 IGCT NO.2 10A Hybrid system, shift control sys-
tem, power management system, 
multiport fuel injection system/
sequential multiport fuel injection 
system
32 MIR HTR 10A Outside rear view mirror defoggers
33 RAD NO.1 15A Audio system, navigation system
34 DOME 10A Door courtesy lights, luggage 
compartment light, personal light, 
interior light, foot lights, vanity 
lights, inside rear view mirror, 
garage door opener
35 ECU-B 7.5A Smart key system, personal lights, 
gauges and meters, emergency 
flashers
36 H-LP LH HI 10A Left-hand headlight (high beam)
37 H-LP RH HI 10A Right-hand headlight (high beam)
38 EFI NO.2 10A Multiport fuel injection system/
sequential multiport fuel injection 
system
39 IGCT NO.3 10A Cooling system
40 SPARE 30A Spare fuse
41 SPARE 10A Spare fuse
42 SPARE 7.5A Spare fuse 
     
        
        Page 550 of 644

550
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
If the hybrid system will not start
Reasons  for  the  hybrid  system  not  starting  vary depending  on  the
situation.  Check  the  following  a nd  perform  the  appropriate  proce-
dure: 
■ The  hybrid  system  will  not  start  even  though  the  correct
starting procedure is being followed ( P. 195)
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly.
* 
(  P. 553)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P.  4 0 )
● There may be a malfunction in the immobilizer system.
* 
(  P. 137)
● There may be a malfunction in the shift control system.
* 
(  P. 200, 519)
*: It may not be possible to shift the shift position from P to other posi-
tion.
■ The interior lights and headlights are dim, or the horn does
not sound or sounds at a low volume
One of the following may be the cause of the problem:
●The 12-volt battery may be discharged. ( P. 555)
● The 12-volt battery terminal c onnections may be loose or cor-
roded. 
     
        
        Page 551 of 644
5
When trouble arises
551
5-2. Steps to take in an emergency
PRIUS_OM_OM47A17U_DVD_(U)
Emergency start function
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:
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 headlights do not turn on, or the horn
does not sound
One of the following may be the cause of the problem:
●One or both of the 12-volt ba ttery terminals may be discon-
nected.
● The 12-volt battery may be discharged. ( P. 555)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1 
STEP 2 
STEP 3  
     
        
        Page 582 of 644
582 6-1. Specifications
PRIUS_OM_OM47A17U_DVD_(U)
Light bulbs
A: H11 halogen bulbs 
B: HB3 halogen bulbs 
C: H16 halogen bulbs
D: Wedge base bulbs (amber) 
E: Wedge base bulbs (clear) 
F: Double end bulbs
 
*
: If equipped
Light BulbsBulb No.WTy p e
Exterior Halogen headlights
Low beam
High beam
LED headlights High beam H11
9005
9005 55
60
60A
B
B
Fog lights
*H16 19 C
Front turn signal lights WY21W 21 D
Front side marker lights W5W 5 E
Parking lights 
(halogen headlights) W5W 5 E
Rear turn signal lights WY21W 21 D
Back-up lights W21W 21 E
License plate lights W5W 5 E
InteriorFront interior/personal lights
5E
Rear interior light 8F
Vanity lights 8E
Door courtesy lights 5E
Luggage compartment light 5F 
     
        
        Page 606 of 644
606 6-2. Customization
PRIUS_OM_OM47A17U_DVD_(U)
ItemFunctionDefault settingCustom- ized
setting
Power 
windows 
( P. 125) The one-touch 
closing operation 
except for 
driver’s seat
ON OFF – – O
Illumination
( P. 359) Time elapsed 
before lights turn 
off
15 secondsOFF
–OO
7.5 
seconds
30 seconds
Operation when 
the doors are 
unlocked ON OFF – – O
Operation after 
the “POWER” 
switch turned 
OFF ON OFF – – O
Operation when 
you approach 
the vehicle with 
the electric key 
on your person 
(When the per-
sonal/interior 
light main switch 
is door position) ON OFF – – O
Foot lights ON OFF – – O
Foot lights oper-
ation when the 
vehicle is run-
ning ON OFF – – O 
     
        
        Page 631 of 644

631
Alphabetical index
PRIUS_OM_OM47A17U_DVD_(U)
Back door
Back door ............................... 94
Smart key system ... ................ 63
Wireless remote control.......... 86
Back-up lights Replacing light bulbs ............ 478
Wattage ................................ 582
Battery Checking .............................. 440
If the 12-volt battery is 
discharged ......................... 555
Preparing and checking 
before winter ...................... 323
Bluetooth
®*
Bottle holders .......................... 368
Brake Fluid...................................... 580
Parking brake ....................... 215
Brake assist ............................. 301
Break-in tips ............................ 183
Brightness control Instrument panel light 
control ................................ 220 Camera
*
Care
Exterior ..................................404
Interior ...................................407
Seat belts ..............................408
Cargo capacity .........................322
Cargo hooks .............................381
CD player
*
Chains .......................................325
Child restraint system
Booster seats, definition ........162
Booster seats, installation .....170
Convertible seats, definition .............................162
Convertible seats, 
installation ...........................170
Front passenger occupant  classification system ........... 156
Infant seats, definition ...........162
Infant seats, installation.........170
Installing child restraint system  with LATCH anchors ...........168
Installing child restraint system  with seat belts .....................170
Installing child restraint system 
with top tether strap ............174
BC
GW Refer to