Page 631 of 800
631
PRIUS_OM_OM47A29U_(U)
7-3. Do-it-yourself maintenance
7
Maintenance and care
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Engine compartment type A fuse box
While pushing the 2 claws, lift up
the cover.
When closing the cover, make sure
to attach the 2 claws.
Engine compartment type B fuse box
While pushing the 3 claws, lift up
the cover.
When closing the cover, make sure
to attach the 3 claws.
Left side instrument panel
Remove the lid.
Make sure to press the claw during
removal or installation.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
1
2
Page 632 of 800
632
PRIUS_OM_OM47A29U_(U)
7-3. Do-it-yourself maintenance
Remove the fuse.
Only type A fuse can be
removed using the pullout tool.
Check if the fuse is blown.Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.
3
4
1
2
Ty p e AType B
Ty p e C
Page 633 of 800

PRIUS_OM_OM47A29U_(U)
6337-3. Do-it-yourself maintenance
7
Maintenance and care
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. ( P. 636)
● If the replaced fuse blows again, have the vehicle inspected by your Toyota
dealer.
■ If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■ When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, nongenuine parts or parts not designed for this vehicle may be
unusable.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or
injury.
●Never use a fuse of a higher amperage rating than that indicated, or use\
any other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
● Do not modify the fuses or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.
Page 706 of 800

706
PRIUS_OM_OM47A29U_(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. 708)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 84)
● There may be a malfunction in the immobilizer system.
* ( P. 8 9 )
● There may be a malfunction in the shift control system.
*
( P. 228, 671)
● 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. 707)
● There is a possibility that the temperature of the hybrid battery
(traction battery) is extremely low (approximately below -22°F
[-30°C]). ( P. 84, 228)
*: 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. 7 1 1 )
● The 12-volt battery terminal con nections may be loose or corroded.
( P. 598)
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. 225)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
Page 788 of 800

788Alphabetical index
PRIUS_OM_OM47A29U_(U)
Flat tire...................................... 673
Floor mats .................................. 26
FluidBrake .................................... 733
Transmission ........................ 733
Washer ................................. 603
Fog lights Replacing light bulbs............. 642
Switch ................................... 252
Footwell lights ......................... 525
Front doors .............................. 165
Front fog lights Replacing light bulbs............. 642
Switch ................................... 252
Front passenger occupant classification system .............. 50
Front passenger’s seat
belt reminder light ................. 658
Front seats ............................... 184 Adjustment ............................ 184
Cleaning................................ 574
Correct driving posture ........... 28
Head restraints ..................... 189
Seat heaters ......................... 523
Front side marker lights Light switch ........................... 242
Replacing light bulbs............. 642
Front turn signal lights Replacing light bulbs............. 638
Turn signal lever ................... 240
Wattage ................................ 736 Fuel
Capacity................................ 729
Fuel gauge............................ 108
Gas station information......... 800
Information............................ 737
Refueling .............................. 262
Type...................................... 729
Warning light......................... 657
Fuel filler door ......................... 262 Opener.................................. 264
Refueling .............................. 262
When the fuel filler door cannot be opened .............. 265
Fuses ........................................ 631
Gas station information .......... 800
Garage door opener ................ 554
Glove box ................................. 529
Hands-free system (for cellular phone) ............... 470
Head restraints ........................ 189
Head-up display....................... 146
Headlights ................................ 242 Automatic High Beam
system .......... ...................... 247
Headlight aim................ 634, 774
Light switch ........................... 242
Replacing light bulbs ............ 642
Heaters Automatic air conditioning
system .......... ...................... 512
Outside rear view mirrors ..... 517
Seat heaters ......................... 523
F
G
H
Page 793 of 800

793Alphabetical index
PRIUS_OM_OM47A29U_(U)
Power switch............................ 225Auto power off function ......... 227
Changing the power
switch modes...................... 227
If your vehicle has to be
stopped in an emergency ... 647
Starting the hybrid system .... 225
Power windows
Catch protection function ...... 199
Door lock linked window operation ............................ 200
Jam protection function......... 199
Operation .............................. 198
Window lock switch............... 198
Pre-Collision System (PCS) Enabling/disabling the system ......... ....................... 279
Function ................................ 275
Warning light ......................... 656
Radar cruise control (dynamic radar cruise
control with full-speed
range) ..................................... 300
Radiator .................................... 597
Radio......................................... 438
Rear seat .................................. 186
Rear side marker lights Light switch ........................... 242 Rear turn signal lights
Replacing light bulbs ............ 639
Turn signal lever ................... 240
Wattage ................................ 736
Rear view mirror
Inside rear view mirror .......... 194
Outside rear view mirrors ..... 196
Rear view monitor system ...... 394
Rear window defogger ............ 517
Rear window wiper .................. 260
Refueling .................................. 262
Capacity................................ 729
Fuel types ............................. 729
Opening the fuel tank cap..... 264
When the fuel filler door cannot be opened .............. 265
Regenerative braking ................ 80
Replacing
Electronic key battery ........... 628
Fuses .................................... 631
Light bulbs ............................ 636
Tires.............................. 673, 687
Resetting the message
indicating maintenance is
required.................................. 579
Reporting safety defects for U.S. owners...................... 762
Road accident cautions ............ 86
R
*: Refer to the “NAVIGATION SYSTEM OWNER’S MANUAL”.