Page 416 of 552
4167-3. Do-it-yourself maintenance
PRIUS c_U (OM52E68U)
Vehicles without a smart key system: Turn the engine switch off.
Vehicles with a smart key system: Turn the “POWER” switch off.
Engine compartment
Push the tab in and lift the cover off.
Under the instrument panel
Remove the cover.
Checking and replacing fuses
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
Type A fuse boxType B fuse box
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Page 417 of 552
4177-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U (OM52E68U)
Remove the fuse with the pull-
out tool.
Only type A fuse can be removed
using the pullout tool.
3
Page 418 of 552
4187-3. Do-it-yourself maintenance
PRIUS c_U (OM52E68U)
Check if the fuse is blown.4
Ty pe ATy pe B
Ty pe CTy pe D
Ty pe E
Normal fuse
Blown fuse
Type A, B, C and D:
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.
Type E:
Contact your Toyota dealer.
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2
Page 419 of 552

4197-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U (OM52E68U)
■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. 420)
● 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.
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.
■ Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring
near the fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer as soon as possible.
Page 473 of 552

4738-2. Steps to take in an emergency
8
When trouble arises
PRIUS c_U (OM52E68U)
One of the following may be the cause of the problem:
●Vehicles with a smart key system: The electronic key may not be
functioning properly. ( P. 476)
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ( P. 214)
● Vehicles with immobilizer system: There may be a malfunction in
the immobilizer system. ( P. 82)
● There may be a malfunction in the steering lock system.
● Vehicles with a smart key system: The hybrid system may be mal-
functioning due to an electrical problem such as an open circuit or a
blown fuse. However, depending on the type of malfunction, an
interim measure is available to start the hybrid system. ( P. 474)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 478)
● The 12-volt battery terminal connections may be loose or corroded.
( P. 394)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 478)
● One or both of the 12-volt battery terminals may be disconnected.
( P. 394)
Contact your Toyota dealer if the problem cannot be repaired, or if repair
procedures are unknown.
If the hybrid system will not star t
Reasons for the hybrid system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 182, 186)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
The interior lights and headlights do not turn on, or the horn
does not sound.
Page 478 of 552
4788-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.Open the hood and remove the
fuse box cover.
Push the tab in and lift the cover
off.
Open the exclusive jump start-
ing terminal cover.
Push the tab in and open the cover.
If the vehicle 12-volt batter y is discharged
The following procedures may be used to start the hybrid sys-
tem if the vehicle’s 12-volt battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.
1
2
Page 480 of 552

4808-2. Steps to take in an emergency
PRIUS c_U (OM52E68U)
Make sure the “READY” indicator comes on. If the indicator does
not come on, contact your Toyota dealer.
Once the hybrid system has started, 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, have the vehicle inspected at your
Toyota dealer as soon as possible.
■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 sy stem 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.)
7
8
9
Page 545 of 552

545Alphabetical index
PRIUS c_U (OM52E68U)
Floor mat .................................... 24
FluidBrake .................................... 496
Washer ................................. 393
Fog lights
Replacing light bulbs............. 427
Switch ................................... 205
Front fog lights Replacing light bulbs............. 427
Switch ................................... 205
Front passenger occupant
classification system .............. 50
Front passenger’s seat belt reminder light................. 443
Front seats Adjustment ............................ 145
Front side marker lights
Replacing light bulbs............. 422
Switch ................................... 201
Wattage ................................ 498
Front turn signal lights Replacing light bulbs............. 424
Switch ................................... 199
Wattage ................................ 498
Fuel Capacity ................................ 492
Fuel gauge .............................. 91
Information ............................ 499
Refueling............................... 214
Type .............................. 214, 492
Fuel door .................................. 214
Fuel filler door.......................... 214
Fuses ........................................ 416
Gauges ....................................... 91
Glove box ................................. 353 Hazard lights
Switch ................................... 430
Head restraints Adjusting .............................. 150
Headlights
Replacing light bulbs ............ 427
Switch ................................... 201
Heaters Seat heaters ......................... 348
Side mirrors .......................... 342
Hill-start assist control ........... 232
Hood ......................................... 382
Horn .......................................... 153
Hybrid system
Emergency shut off system .... 77
Energy monitor/consumption screen ........... 107
High voltage components ....... 76
Hybrid system indicator ........ 102
“POWER” switch................... 186
Vehicle Proximity Notification System .............. 72
I/M test ...................................... 378
Identification Engine .................................. 492
Tire ....................................... 502
Vehicle .................................. 491
Ignition switch ................. 182, 186
Illuminated entry system ........ 351
Immobilizer system ................... 82
Indicator lights........................... 86
Initialization Items to initialize ................... 519
Inside rear view mirror ............ 155
Interior lights Switch ................................... 350
Wattage ................................ 498
iPod........................................... 272
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