Page 322 of 568

3224-5. Using the driving support systems
PRIUS +_OM_OM47D30E_(EE)
WARNING
■The ABS does not operate effectively when 
● The limits of tire gripping performance have been exceeded (such as 
excessively worn tires on a snow covered road). 
● The vehicle hydroplanes while driving at high speed on wet or slick road. 
■ Stopping distance when the ABS is operating may exceed that of nor- 
mal conditions 
The ABS is not designed to shorten t he vehicle’s stopping distance. Always 
maintain a safe distance from the vehicle in front of you, especially in the 
following situations: 
● When driving on dirt, gravel or snow-covered roads 
● When driving with tire chains 
● When driving over bumps in the road 
● When driving over roads with potholes or uneven surfaces 
■ TRC may not operate effectively when 
Directional control and power may not be achievable while driving on slip- 
pery road surfaces, even if the TRC system is operating.  
Drive the vehicle carefully in conditions where stability and power may be 
lost. 
■ Hill-start assist control does not operate effectively when 
● Do not overly rely on the hill-start assist control. The hill-start assist control 
may not operate effectively on steep inclines and roads covered with ice. 
● Unlike the parking brake, hill-start assist control is not intended to hold the 
vehicle stationary for an extended period of time. Do not attempt to use 
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident. 
■ When the VSC is activated 
The slip indicator light flashes. Always  drive carefully. Reckless driving may 
cause an accident. Exercise particular care when the indicator light flashes. 
     
        
        Page 341 of 568

3415-1. Using the air conditioning system and defogger
PRIUS +_OM_OM47D30E_(EE)
5
Interior features
Seat heaters
Heats the left front seat 
Heats the right front seat
The indicator light comes on when 
the seat heater is operating.
● The seat heaters can be used when the power switch is in ON mode. 
● When not in use, turn off the switch. The indicator light turns off.
: If equipped
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WARNING
●Care should be taken to prevent injury if anyone in the following categories 
comes in contact with the seats when the heater is on: 
• Babies, small children, the elderly, the sick and the physically chal- 
lenged 
• Persons with sensitive skin 
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping 
drugs, cold remedies, etc.) 
● Observe the following precautions to prevent minor burns or overheating:  
• Do not cover the seat with a blanket or cushion when using the seat 
heater. 
• Do not use seat heater more than necessary. 
NOTICE
● Do not put heavy objects that have an uneven surface on the seat and do 
not stick sharp objects (needles, nails, etc.) into the seat. 
● To prevent 12-volt battery discharge, do not use the functions when the 
hybrid system is off. 
     
        
        Page 345 of 568
3455-3. Using the storage features
PRIUS +_OM_OM47D30E_(EE)
5
Interior features
List of storage features
Card holders  
(if equipped:  P. 350) 
Auxiliary boxes ( P. 349) 
Cup holders ( P. 347) 
Glove boxes ( P. 346) 
Bottle holders/door pockets  
( P. 347) 
Console box ( P. 346)
WARNING
●Do not leave glasses, lighters or spray cans in the storage spaces, as this 
may cause the following when cabin temperature becomes high: 
• Glasses may be deformed by heat or cracked if they come into contact 
with other stored items. 
• Lighters or spray cans may explode. If they come into contact with other
stored items, the lighter may catch fire or the spray can may release 
gas, causing a fire hazard. 
● When driving or when the storage compartments are not in use, keep the 
lids closed.
In the event of sudden braking or sudden swerving, an accident may occur 
due to an occupant being struck by an open lid or the items stored inside.
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        Page 359 of 568

3595-4. Using the other interior features
PRIUS +_OM_OM47D30E_(EE)
5
Interior features
■Customization 
The door lock linked automatic close function can be disabled.  
(Customizable features:  P. 539)
WARNING
Observe the following precautions.  
Failing to do so may result in death or serious injury. 
■ When closing the panoramic roof shades 
■ Jam protection function 
● Never try jamming any part of your body to activate the jam protection 
function intentionally. 
● The jam protection function may not work if something gets caught just 
before the panoramic roof shades fully close. 
■ To prevent burns or injuries 
Do not touch the gaps between the underside of the roof and the panoramic 
roof shades. 
Your hand may get caught and you could injure yourself. Also, if the vehicle 
is left in direct sunlight for a l ong time, the underside of the roof could 
become very hot and could cause burns.
NOTICE
The panoramic roof is made of resin.  Follow these precautions to prevent 
damage to the roof. 
● When cleaning the roof, use a mild soap and a soft cloth or sponge to 
remove dirt, then wash clean with plenty of water. ( P. 366) 
● When loading luggage onto the roof, make sure to use a roof rack 
designed for this vehicle. ( P. 222)
●Check to make sure that all passengers 
do not have any part of their bodies in a
position where they could be caught 
when the panoramic roof shades are 
being operated. 
● Do not allow children to operate the 
panoramic roof shades.  
Closing the panoramic roof shades on
someone can cause death or serious 
injury. 
     
        
        Page 374 of 568

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. 
     
        
        Page 391 of 568

3916-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
WARNING
■Chemicals in the 12-volt battery 
The 12-volt battery contains poisonous and corrosive sulfuric acid and may 
produce hydrogen gas which is flammable and explosive. To reduce the risk 
of death or serious injury, take the following precautions while working on or 
near the 12-volt battery: 
● Do not cause sparks by touching the 12-volt battery terminals with tools. 
● Do not smoke or light a match near the 12-volt battery. 
● Avoid contact with eyes, skin and clothes. 
● Never inhale or swallow electrolyte. 
● Wear protective safety glasses when working near the 12-volt battery. 
● Keep children away from the 12-volt battery. 
■ Where to safely charge the 12-volt battery 
Always charge the 12-volt battery in an open area. Do not charge the 12- 
volt battery in a garage or closed room where there is insufficient ventila- 
tion. 
■ How to recharge the 12-volt battery 
Only perform a slow charge (4.2 A or less). The 12-volt battery may explode 
if charged at a quicker rate. 
■ Emergency measures regarding electrolyte 
● If electrolyte gets in your eyes 
Flush your eyes with clean water for at least 15 minutes and get immedi-
ate medical attention. If possible, continue to apply water with a sponge or 
cloth while traveling to the nearest medical facility. 
● If electrolyte gets on your skin 
Wash the affected area thoroughly. If you feel pain or burning, get medical 
attention immediately. 
● If electrolyte gets on your clothes 
It can soak through clothing on to your skin. Immediately take off the cloth- 
ing and follow the procedure above if necessary. 
● If you accidentally swallow electrolyte 
Drink a large quantity of water or milk. Get emergency medical attention 
immediately. 
     
        
        Page 394 of 568

3946-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
Your vehicle is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise.
If the tire pressure drops below a predetermined level, the driver is
warned by a warning light. (P. 450)
The compact spare tire is not equipped with a tire pressure warning
valve and transmitter.
◆Installing tire pressure warning valves and transmitters
When replacing tires or wheels, tire pressure warning valves and
transmitters must also be installed.
When new tire pressure warning valves and transmitters are
installed, new ID codes must be registered in the tire pressure
warning computer and the tire pressure warning system must be
initialized. Have tire pressure warning valve and transmitter ID
codes registered by any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer. (P. 395)
◆Initializing the tire pressure warning system
■The tire pressure warning system must be initialized in the fol-
lowing circumstances:
●When rotating front and rear tires which have different tire infla-
tion pressures
●When changing the tire size
When the tire pressure warning system is initialized, the current tire
inflation pressure is set as the benchmark pressure.
Tire pressure warning system 
     
        
        Page 395 of 568

3956-3. Do-it-yourself maintenance
PRIUS +_OM_OM47D30E_(EE)
6
Maintenance and care
■How to initialize the tire pressure warning system 
Park the vehicle in a safe place and turn the power switch off.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire inflation 
pressure level. ( P. 535)
Make sure to adjust the tire pressure to the specified cold tire inflation 
pressure level. The tire pressure warning system will operate based on 
this pressure level.
Turn the power switch to ON mode. 
Press and hold the tire pres- 
sure warning reset switch 
until the tire pressure warn- 
ing light blinks slowly 3 times. 
Wait for a few minutes with the power switch in ON mode and 
then turn the power switch off. 
◆Registering ID codes 
The tire pressure warning valve and transmitter is equipped with a 
unique ID code. When replacing a tire pressure warning valve and 
transmitter, it is necessary to register the ID code. Have the ID code 
registered by any authorized Toyota retailer or Toyota authorized 
repairer, or any reliable repairer.
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