Page 566 of 744
5667-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
Engine compartment
Engine coolant reservoir 
( P. 570) 
Fuse boxes ( P. 619) 
Engine oil level dipstick 
( P. 567) 
Engine oil filler cap ( P. 568) 
Washer fluid tank  ( P. 578) 
12-volt battery ( P. 573) 
Power control unit coolant  
reservoir  ( P. 570) 
Radiator ( P. 572) 
Condenser  ( P. 572) 
Electric cooling fans
1
2
3
4
5
6
7
8
9
10 
         
        
        
     
        
        Page 619 of 744
6197-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
7
Maintenance and care
Checking and replacing fuses
Turn the power switch off.
Confirm that the charging connector is not connected. Also, do not use the 
Remote Air Conditioning System during the procedure.
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.
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 621 of 744
6217-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
7
Maintenance and care
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.
4
1
2
Ty pe  AType B
Ty pe  C 
         
        
        
     
        
        Page 622 of 744

6227-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A89E_(EE)
■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. 623) 
● If the replaced fuse blows again, have the vehicle inspected by any autho- 
rized Toyota dealer or repairer, or  another duly qualified and equipped pro- 
fessional. 
■ 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, non-genuine 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 any 
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible. 
         
        
        
     
        
        Page 730 of 744

730Alphabetical index
PRIUS PHV_OM_OM47A89E_(EE)
Flat tire ...................................... 658
Floor mats .................................. 30
Fluid
Brake..................................... 704
Transmission......................... 703
Washer.................................. 578
Fog lights.................................. 351
Replacing light bulbs ............. 628
Switch ................................... 351
Follow me home system ......... 342
Footwell lights.......................... 522
Front doors............................... 269
Front fog lights ........................ 351
Replacing light bulbs ............. 628
Switch ................................... 351
Front passenger’s seat belt 
reminder light ........................ 645
Front position lights ................ 341
Light switch ........................... 341
Replacing light bulbs ............. 628
Front seats ............................... 296
Adjustment ............................ 296
Cleaning ................................ 551
Correct driving posture............ 32
Head restraints...................... 299
Seat heaters.......................... 520
Front turn signal lights............ 339
Replacing light bulbs ............. 628
Turn signal lever ................... 339
Fuel ........................................... 355
Capacity ................................ 698
Fuel gauge ............................ 207
Information ............................ 706
Refueling ............................... 355
Type ...................................... 698
Warning light ......................... 644Fuel consumption............ 229, 260
Average fuel consumption .... 229
Current fuel consumption...... 260
Fuel filler door.......................... 357
Opener .................................. 357
Refueling............................... 355
When the fuel filler door 
cannot be opened............... 357
Fuses ........................................ 619
Glove box ................................. 526
Hands-free system 
(for cellular phone)
*
Head restraints ........................ 299
Head-up display ....................... 249
Headlights ................................ 341
AHS (Adaptive High-beam 
System) .............................. 345
Automatic headlight 
leveling ............................... 343
Follow me home system ....... 342
Light switch ........................... 341
Replacing light bulbs............. 628
Heaters
Automatic air conditioning 
system ................................ 504
Outside rear view mirrors...... 509
Seat heaters ......................... 520
High coolant temperature 
warning light .......................... 644
High mounted stoplight
Replacing .............................. 628
High-voltage components ...... 101
Hill-start assist control............ 491
Hood ......................................... 563
F
G
H