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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 335 of 568

3355-1. Using the air conditioning system and defogger
PRIUS +_OM_OM47D30E_(EE)
5
Interior features
■Switching between outside air and recirculated air modes 
Press .
The mode switches between recirculated air mode and outside air mode 
each time the button is pressed. 
The indicator on   turns on when the recirculated air mode is 
selected. 
■Defogging the windshield 
Defoggers are used to defog the windshield and front side win- 
dows. 
Press .
Set   to outside air mode if the recirculated air mode is used. (It 
may switch automatically.) 
To defog the windshield and the side windows early, turn the air flow and 
temperature up. 
To return to the previous mode, press   again when the windshield 
is defogged. 
■Defogging the rear window and outside rear view mirrors 
Defoggers are used to defog the rear window and to remove rain- 
drops, dew and frost from the outside rear view mirrors. 
Press .
The defoggers will automatically turn off after a period of time. 
■Pollen removal mode 
Pollen is removed from the air and the air flows to the upper part of 
the body. 
Press .
In order to prevent the windshiel d from fogging up when the outside air 
is cold, the dehumidification function may operate. 
The pollens are filtered out even if the pollen removal mode is turned 
off.
Other functions 
     
        
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3385-1. Using the air conditioning system and defogger
PRIUS +_OM_OM47D30E_(EE)■When the outside temperature is low
The dehumidification function may not operate even when   is pressed.
■Operation of the air conditioning system in Eco drive mode
●In the Eco drive mode, the air conditioning system is controlled as follows to
prioritize fuel efficiency
• Engine speed and compressor operation controlled to restrict heating/
cooling capacity
• Fan speed restricted when automatic mode is selected
●To improve air conditioning performance, perform the following operations
• Adjust the fan speed
• Turn off Eco drive mode
• Customize the air conditioning control of Eco drive mode. (P. 543)
■Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the outside air mode.
●During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.
●To reduce potential odors from occurring: 
• It is recommended that the air conditioning system be set to outside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic
mode.
■Air conditioning filter
P. 413
■Customization
Settings (e.g. A/C auto switching operation) can be changed. 
(Customizable features: P. 539) 
     
        
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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 
     
        
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3746-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
WARNING
The engine compartment contains many mechanisms and fluids that may 
move suddenly, become hot, or become el ectrically energized. To avoid death 
or serious injury, observe the following precautions. 
■ When working on the engine compartment 
● Make sure that the “POWER ON” on the multi-information display or the 
smart entry & start system indicator, and the “READY” indicator are both 
off. 
● Keep hands, clothing and tools away from the moving fan. 
● Be careful not to touch the engine, power control unit, radiator, exhaust 
manifold, etc. right after driving as they may be hot. Oil and other fluids 
may also be hot. 
● Do not leave anything that may burn easily, such as paper and rags, in the 
engine compartment. 
● Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes 
are flammable. 
● Take care because brake fluid can harm your hands or eyes and damage 
painted surfaces. If fluid gets on your hands or in your eyes, flush the
affected area with clean water immediately. If you still experience discom- 
fort, consult a doctor. 
■ When working near the electric cooling fans or radiator grille 
Be sure the power switch is off. 
With the power switch in ON mode, the electric cooling fans may automati-
cally start to run if the air conditioning is on and/or the coolant temperature
is high. ( P. 386) 
■ Safety glasses 
Wear safety glasses to prevent flying or falling material, fluid spray, etc. 
from getting in your eyes.
NOTICE
■ If you remove the air cleaner filter 
Driving with the air cleaner filter removed may cause excessive engine wear 
due to dirt in the air. 
■ If the brake fluid level is low or high 
It is normal for the brake fluid level to go down slightly as the brake pads 
wear or when the fluid level in the accumulator is high. 
If the reservoir needs frequent refilling,  it may indicate a serious problem. 
     
        
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3846-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
WARNING
■Used engine oil 
● Used engine oil contains potentially harmful contaminants which may 
cause skin disorders such as inflammation and skin cancer, so care 
should be taken to avoid prolonged and repeated contact. To remove used 
engine oil from your skin, wash thoroughly with soap and water. 
● Dispose of used oil and filters only in a safe and acceptable manner. Do 
not dispose of used oil and filters in household trash, in sewers or onto the 
ground. Call any authorized Toyota reta iler or Toyota authorized repairer, 
or any reliable repairer, service station or auto parts store for information 
concerning recycling or disposal. 
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage 
Check the oil level on a regular basis. 
■ When replacing the engine oil 
● Be careful not to spill engine oil on the vehicle components. 
● Avoid overfilling, or the engine could be damaged. 
● Check the oil level on the dipstick every time you refill the vehicle. 
● Be sure the engine oil filler cap is properly tightened. 
     
        
        Page 413 of 568
4136-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
Air conditioning filter
Turn the power switch off.
Open the lower glove box and
remove the filter exchange
cover.
Remove the filter cover.
The air conditioning filter must be changed regularly to maintain
air conditioning efficiency.
Removal method
1
2
3
Left-hand drive vehiclesRight-hand drive vehicles 
     
        
        Page 414 of 568
4146-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
Slide and pull out the filter. 
Replace it with a new one.
The “ UP” marks shown on the fil- 
ter should be pointing up.
When installing, reverse the steps listed.
■ Checking interval 
Inspect and replace the air conditioning filter according to the maintenance 
schedule. In dusty areas or areas with  heavy traffic flow, early replacement 
may be required. (For scheduled maintenance information, please refer to the 
“Toyota Service Booklet” or “Toyota Warranty Booklet”.) 
■ If air flow from the vents decreases dramatically 
The filter may be clogged. Check the filter and replace if necessary.
4
NOTICE
■ To prevent damage to the system 
When using the air conditioning system, make sure that a filter is always 
installed.
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