fuse TOYOTA PRIUS 2020 Owners Manual (in English)

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PRIUS_OM_OM47D44U_(U)
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6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 500
Hood.................................. 503
Positioning a floor jack ...... 505
Engine compartment ......... 506
Tires .................................. 520
Tire inflation pressure........ 530
Wheels .............................. 533
Air conditioning filter .......... 536
Cleaning the hybrid battery (traction battery) air intake
vent and filter .................. 539
Wiper insert replacement .................... 544
Electronic key battery ........ 548
Checking and replacing fuses ............................... 551
Headlight aim .................... 554
Light bulbs ......................... 556
7-1. Essential information Emergency flashers .......... 568
If your vehicle has to be stopped in an
emergency ...................... 569
If the vehicle is trapped in rising water...................... 570 7-2. Steps to take in an
emergency
If your vehicle needs to be towed .......................... 572
If you think something is wrong............................... 579
If a warning light turns on or a warning buzzer
sounds ............................. 580
If a warning message is displayed ......................... 591
If you have a flat tire (vehicles without
spare tire) ........................ 599
If you have a flat tire (vehicles with
spare tire) ........................ 619
If the hybrid system will not start ........................... 633
If the electronic key does not operate properly ........ 635
If the 12-volt battery is discharged ....................... 638
If your vehicle overheats.... 644
If the vehicle becomes stuck ................................ 649
7When trouble arises

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6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 484
Cleaning and protecting the vehicle interior ........... 490
6-2. Maintenance Maintenance requirements ................... 493
General maintenance........ 496
Emission inspection and maintenance (I/M)
programs......................... 499
6-3. Do-it-yourself maintenance
Do-it-yourself service precautions ..................... 500
Hood ................................. 503
Positioning a floor jack ...... 505
Engine compartment ......... 506
Tires .................................. 520
Tire inflation pressure ....... 530
Wheels .............................. 533
Air conditioning filter.......... 536
Cleaning the hybrid battery (traction battery) air intake
vent and filter .................. 539
Wiper insert replacement .................... 544
Electronic key battery........ 548
Checking and replacing fuses ............................... 551
Headlight aim .................... 554
Light bulbs......................... 556

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PRIUS_OM_OM47D44U_(U)
6-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(  P. 5 1 2 )•Grease
• Conventional wrench (for terminal clamp bolts)
Brake fluid level
( P. 5 1 6 )
• SAE J1703 or FMVSS No.116 DOT 3 or SAE J1704
or FMVSS No.116 DOT 4 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine/power
control unit cool-
ant level
( P. 5 1 0 )
• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with
55% coolant and 45% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
( P. 5 0 7 )• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 551)• Fuse with same amperage rating as original
Hybrid battery
(traction battery)
air intake vent
( P. 5 3 9 )• Vacuum cleaner, etc.
• Phillips screwdriver
Light bulbs
( P. 5 5 6 )
• Bulb with same number and wattage rating as origi-
nal
• Phillips screwdriver
• Flathead screwdriver• Wrench
Radiator and con-
denser ( P. 512)

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6-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir ( P. 510)
Fuse boxes ( P. 551)
Engine oil level dipstick ( P. 507)
Engine oil filler cap ( P. 508)
Brake fluid reservoir ( P. 516) 12-volt battery (
P. 512)
Power control unit coolant
reservoir ( P. 510)
Radiator ( P. 512)
Condenser ( P. 512)
Electric cooling fans
Washer fluid tank ( P. 518)1
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6-3. Do-it-yourself maintenance
6
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, che ck and replace the fuses as nec-
essary.
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552
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6-3. 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 ampera ge rat-
ing. The amperage rating can be found on the fuse box lid.
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Ty p e AType B
Ty p e C

PRIUS_OM_OM47D44U_(U)
5536-3. Do-it-yourself maintenance
6
Maintenance and care
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been repla ced, a bulb may
need replacement. ( P. 556)
● 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 f rom 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 vehic le 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 indicate d, 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 b y your
Toyota dealer as soon as possible.

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7
When trouble arises
7-2. Steps to take in an emergency
If the hybrid system will not start
One of the following may be the cause of the problem:
● The electronic key may no t be functioning properly.
* ( P. 635)
● There may not be sufficient f uel in the vehicle’s tank.
Refuel the vehicle. ( P. 89)
● There may be a malfunction in the immobilizer system.
* ( P. 9 4 )
● There may be a malfunction i n the shift control system.
*
(  P. 245, 597)
● The hybrid system may be malfunc tioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. H ow-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( P. 634)
● There is a possibility that the t emperature of the hybrid battery
(traction battery) is extremely low (approximately below -22°F
[-30°C]). ( P. 89, 244)
*: 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. 638)
● The 12-volt battery terminal connections may be loose or corrod ed.
(  P. 512)
Reasons for the hybrid system not starting vary depending on
the situation. Check the followi ng and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 241)
The interior lights and headlights are dim, or the horn does no t
sound or sounds at a low volume.

716Alphabetical index
PRIUS_OM_OM47D44U_(U)
Front turn signal lights ........... 257Replacing light bulbs............. 565
Turn signal lever ................... 257
Fuel ........................................... 663 Capacity ................................ 655
Fuel gauge ............................ 116
Information ............................ 663
Refueling............................... 279
Type ...................................... 655
Warning light ......................... 582
Fuel consumption............ 131, 167
Fuel filler door.......................... 279
Opener .................................. 281
Refueling............................... 279
When the fuel filler door cannot be opened............... 282
Fuses ........................................ 551
Garage door opener ................ 476
Glove box ................................. 450
Hands-free system (for
cellular phone)
*
Head restraints ........................ 205
Head-up display ....................... 155
Headlights ................................ 259 Automatic High Beam ........... 264
Headlight aim ................ 554, 702
Light switch ........................... 259
Replacing light bulbs............. 565
Heated steering wheel............. 444
Heaters
Automatic air conditioning system ....... ................. 424, 434
Heated steering wheel .......... 444
Outside rear view mirrors ........................ 428, 438
Seat heaters ......................... 444 High coolant temperature
warning light.......................... 582
High mounted stoplight Replacing.............................. 565
High-voltage components ........ 87
Hill-start assist control ........... 409
Hood ......................................... 503
Hooks
Cargo hooks ......................... 456
Coat hooks ........................... 474
Grocery bag hook ................. 457
Retaining hooks (floor mat) .... 26
Horn .......................................... 208
Hybrid battery (tr action battery)
Air intake vent ......................... 88
Location .................................. 87
Specification ......................... 655
Hybrid battery (traction battery) air intake vent............ 88 Cleaning ............................... 539
Hybrid system............................ 83 Brake Override System ........ 225
Drive-Start Control ................ 226
Emergency shut off system .... 88
Energy monitor/consumption
screen ................ 125, 162, 169
EV drive mode ...................... 248
High voltage components ....... 87
Hybrid System Indicator ....... 127
Hybrid system precautions ..... 87
Hybrid vehicle driving tips ..... 415
If the hybrid system will not start .................................... 633
Overheating .......................... 644
Power switch ........................ 241
Regenerative braking ............. 85
Starting the hybrid system .... 241
Vehicle proximity notification system .......... ..................... ... 84
Hybrid System Indicator ......... 127
Hybrid transmission................ 251
G
H

720Alphabetical index
PRIUS_OM_OM47D44U_(U)
Personal lights ......................... 446Switch ................................... 447
Wattage ................................ 662
Power control unit coolant ..... 510 Capacity ................................ 658
Checking ............................... 510
Preparing and checking before winter....................... 418
Radiator ................................ 512
Power outlets ........................... 462
Power steering (Electric Power Steering) ..................... 409 Function ................................ 409
Warning light ......................... 581
Power switch............................ 241 Auto power off function ......... 243
Automatic hybrid system shut off feature ........................... 245
Changing the power switch modes................................. 243
If your vehicle has to be stopped in an emergency ... 569
Starting the hybrid system .... 241
Power windows........................ 214 Catch protection function ...... 215
Door lock linked window operation ............................ 216
Jam protection function......... 215
Operation .............................. 214
Window lock switch............... 214
Pre-Collision System (PCS) .... 292 Enabling/disabling the system ......... ....................... 296
Function ................................ 292
Warning light ......................... 581
Radar cruise control Dynamic radar cruise control
with full-speed range .......... 315
Radiator .................................... 512
Radio
*
RCTA (Rear Cross Traffic Alert)....................................... 345
Blind Spot Monitor function............................... 342
Rear Cross Traffic Alert
function............................... 345
Rear Cross Traffic Alert (RCTA).................................... 345
Blind Spot Monitor function............................... 342
Rear Cross Traffic Alert
function............................... 345
Rear passengers’ seat belt reminder light ........................ 583
Rear seat .................................. 202
Rear side marker lights........... 259 Light switch ........................... 259
Replacing light bulbs ............ 560
Wattage ................................ 662
Rear turn signal lights ............ 257
Replacing light bulbs ............ 560
Turn signal lever ................... 257
Wattage ................................ 662
Rear view mirror Inside rear view mirror .......... 210
Outside rear view mirrors ..... 212
Rear view monitor system
*
Rear window defogger .... 428, 438
Rear window wiper .................. 277
Refueling .................................. 279
Capacity................................ 655
Fuel types ............................. 655
Opening the fuel tank cap..... 281
When the fuel filler door cannot be opened .............. 282
Regenerative braking ................ 85
Replacing
Electronic key battery ........... 548
Fuses .................................... 551
Light bulbs ............................ 556
Tires...................................... 619
Wiper insert .......................... 544
Reporting safety defects for U.S. owners...................... 690
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