Page 518 of 740
518
PRIUS_OM_OM47E09U_(U)
6-3. Do-it-yourself maintenance
Engine compartment
Engine coolant reservoir ( P. 522)
Fuse boxes  ( P. 563)
Engine oil level dipstick  ( P. 519)
Engine oil filler cap ( P. 520)
Brake fluid reservoir ( P. 528) 12-volt battery (
P. 524)
Power control  unit coolant 
reservoir  ( P. 522)
Radiator  ( P. 524)
Condenser  ( P. 524)
Electric cooling fans
Washer fluid tank  ( P. 530)1
2
3
4
5
6
7
8
9
10
11 
     
        
        Page 563 of 740
563
PRIUS_OM_OM47E09U_(U)
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.
1
2 
     
        
        Page 564 of 740
564
PRIUS_OM_OM47E09U_(U)
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.
3
4
1
2
Ty p e  AType B
Ty p e   C 
     
        
        Page 565 of 740

PRIUS_OM_OM47E09U_(U)
5656-3. 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. 568)
● 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. 
     
        
        Page 730 of 740

730Alphabetical index
PRIUS_OM_OM47E09U_(U)
Front turn signal lights ........... 261Replacing light bulbs............. 577
Turn signal lever ................... 261
Fuel ........................................... 675 Capacity ................................ 667
Fuel gauge ............................ 116
Information ............................ 675
Refueling............................... 283
Type ...................................... 667
Warning light ......................... 594
Fuel consumption............ 133, 170
Fuel filler door.......................... 283
Opener .................................. 285
Refueling............................... 283
When the fuel filler door cannot be opened............... 286
Fuses ........................................ 563
Garage door opener ................ 488
Glove box ................................. 462
Hands-free system (for 
cellular phone)
*
Head restraints ........................ 209
Head-up display ....................... 158
Headlights ................................ 263 AHB (Automatic High Beam) ................................. 268
Headlight aim ................ 566, 716
Light switch ........................... 263
Replacing light bulbs............. 577
Heated steering wheel............. 456
Heaters Automatic air conditioning 
system ....... ................. 436, 446
Heated steering wheel .......... 456
Outside rear view mirrors ........................ 440, 450
Seat heaters ......................... 456 High coolant temperature 
warning light.......................... 594
High mounted stoplight Replacing.............................. 577
High-voltage components ........ 88
Hill-start assist control ........... 421
Hood ......................................... 515
Hooks
Cargo hooks ......................... 468
Coat hooks ........................... 486
Grocery bag hook ................. 469
Retaining hooks (floor mat) .... 26
Horn .......................................... 212
Hybrid battery (tr action battery)
Air intake vent ......................... 89
Location .................................. 88
Specification ......................... 667
Hybrid battery (traction  battery) air intake vent............ 89 Cleaning ............................... 551
Hybrid system............................ 84 Brake Override System ........ 229 
Drive-Start Control ................ 230 
Emergency shut off system .... 89
Energy monitor/consumption 
screen ................ 127, 165, 172
EV drive mode ...................... 252
High voltage components ....... 88
Hybrid System Indicator ....... 129
Hybrid system precautions ..... 88
Hybrid vehicle driving tips ..... 427
If the hybrid system will not  start .................................... 645
Overheating .......................... 656
Power switch ........................ 245
Regenerative braking ............. 86
Starting the hybrid system .... 245
Vehicle proximity notification  system .......... ..................... ... 85
Hybrid System Indicator ......... 129
Hybrid transmission................ 255
G
H