Page 5 of 568

5
1 
8 
7
6
5
4
3
2
PRIUS +_OM_OM47D30E_(EE) 
6-3. Do-it-yourself maintenance 
Do-it-yourself service  
precautions ......................373 
Hood ..................................375 
Positioning a floor jack .......377 
Engine compartment..........379 
12-volt battery ....................389 
Tires ...................................393 
Tire inflation pressure ........409 
Wheels ...............................411 
Air conditioning filter ..........413 
Wiper rubber  
replacement .....................415 
Electronic key battery ........417 
Checking and replacing  
fuses ................................419 
Light bulbs .........................423 
7-1. Essential information 
Emergency flashers ...........434 
If your vehicle has to  
be stopped in an 
emergency .......................435 
If the vehicle is trapped in  
rising water ......................436 
7-2. Steps to take in an  
emergency 
If your vehicle needs  
to be towed ..................... 437 
If you think something is  
wrong .............................. 443 
If a warning light turns on  
or a warning buzzer 
sounds ............................ 444 
If a warning message is  
displayed ......................... 458 
If you have a flat tire  
(vehicles with spare 
tire) .................................. 478 
If you have a flat tire  
(vehicles without spare 
tire) .................................. 492 
If the hybrid system will  
not start ........................... 509 
If the electronic key does  
not operate properly ........ 511 
If the 12-volt battery is  
discharged ...................... 513 
If your vehicle  
overheats ........................ 518 
If the vehicle becomes  
stuck................................ 523
7When trouble arises 
     
        
        Page 361 of 568
361
6Maintenance and care
PRIUS +_OM_OM47D30E_(EE)6-1. Maintenance and care
Cleaning and protecting 
the vehicle exterior .......... 362
Cleaning and protecting 
the vehicle interior ........... 367
6-2. Maintenance
Maintenance 
requirements.................... 370
6-3. Do-it-yourself maintenance
Do-it-yourself service 
precautions ...................... 373
Hood .................................. 375
Positioning a floor jack ....... 377
Engine compartment.......... 379
12-volt battery .................... 389
Tires ................................... 393
Tire inflation pressure ........ 409
Wheels ............................... 411
Air conditioning filter .......... 413
Wiper rubber 
replacement ..................... 415
Electronic key battery ........ 417
Checking and replacing 
fuses ................................ 419
Light bulbs ......................... 423 
     
        
        Page 373 of 568

3736-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
Do-it-yourself service 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. 389)• Grease
• Conventional wrench (for terminal clamp bolts)
Engine/power 
control unit 
coolant level 
(P. 385)• “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
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level 
(P. 381)
• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P.  4 1 9 )• Fuse with same amperage rating as original
Light bulbs 
(P. 423)
• Bulb with same number and wattage rating as origi-
nal
• Phillips-head 
screwdriver• Flathead screwdriver
• Wrench
Radiator and 
condenser 
(P. 386)
Tire inflation 
pressure 
(P. 409)
• Tire pressure gauge• Compressed air source
Washer fluid 
(P. 387)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid) 
     
        
        Page 379 of 568
3796-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
Engine compartment
■12-volt battery
P. 389
Engine coolant reservoir
(P. 385)
Engine oil level dipstick
(P. 381)
Engine oil filler cap
(P. 383)
Power control unit coolant 
reservoir  (P. 385)Fuse box  (P. 419)
Radiator (P. 386)
Condenser  (P. 386)
Electric cooling fans
Washer fluid tank  (P. 387)1
2
3
4
5
6
7
8
9 
     
        
        Page 419 of 568
4196-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
When closing, first hook the lid
onto the two rear tabs.
Left side instrument panel (left-hand drive vehicles)
Remove the lid.
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 420 of 568
4206-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
Left side instrument panel (right-hand drive vehicles)
Remove the cover.
Remove the lid.
Remove the fuse.
Only type A fuse can be
removed using the pullout tool.
3 
     
        
        Page 421 of 568
4216-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
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 422 of 568

4226-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(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. 423) 
● If the replaced fuse blows again, have the vehicle inspected by any autho- 
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer. 
■ 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. 
■ 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 any 
authorized Toyota retailer or Toyota authorized repairer, or any reliable 
repairer as soon as possible.