Page 203 of 496

2034-2. Driving procedures
4
Driving
PRIUS +_OM_OM47888E_(EE)
Modes can be changed by pressing the power switch with the brake
pedal released. (The mode changes each time the switch is pressed.)Off
The emergency flashers can be
used.
ACCESSORY mode
Some electrical components such
as the audio system can be used.
The power switch indicator turns
amber.
ON mode
All electrical components can be
used.
The power switch indicator turns
amber.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or ON
mode (the hybrid system is not operating) for more than an hour with the shift
position in P, the power switch will automatically turn off. However, this func-
tion cannot entirely prevent the 12-volt battery discharge. Do not leave the
vehicle with the power switch in ACCESSORY or ON mode for long periods
of time when the hybrid system is not operating.
■ Sounds and vibrations specific to a hybrid vehicle
→ P. 8 4
■ Electronic key battery depletion
→ P. 140
Changing power switch modes
1
2
3
Page 204 of 496

2044-2. Driving procedures
PRIUS +_OM_OM47888E_(EE)■
When the ambient temperature is low, such as during winter driving con-
ditions
When starting the hybrid system, the fl ashing time of the “READY” indicator
may be long. Leave the vehicle as it is until the “READY” indicator is steady
on, as steady means the vehicle is able to move.
■ Conditions affecting operation
→ P. 154
■ Note for the entry function
→ P. 155
■ If the hybrid system does not start
The immobilizer system may not have been deactivated. ( →P. 91)
Contact any authorized Toyota dealer or repairer, or another duly qualified
and equipped professional.
■ When the power switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped profes-
sional immediately.
■ If the “READY” indicator does not come on
In the event that the “READY” indicator does not come on even after perform-
ing the proper procedures for starting the vehicle, contact any authorized
Toyota dealer or repairer, or another duly qualified and equipped professional
immediately.
■ If the hybrid system is malfunctioning
→ P. 390
■ If the electronic key battery is depleted
→ P. 351
■ Operation of the power switch
●When operating the power switch, one short, firm press is enough. If the
switch is pressed improperly, the hybr id system may not start or the power
switch mode may not change. It is not necessary to press and hold the
switch.
● If attempting to restart the hybrid system immediately after turning the power
switch off, the hybrid system may not start in some cases. After turning the
power switch off, please wait a few seconds before restarting the hybrid sys-
tem.
■ Automatically P position selection function
→ P. 2 11
■ When the shift control system malfunctions
The power switch will not be able to be turned off. In such a case, the switch
can be turned off after applying the parking brake.
Have the vehicle inspected by any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional immediately.
Page 282 of 496
2825-2. Using the interior lights
PRIUS +_OM_OM47888E_(EE)
Turns the door position on
When the personal/interior light
main switch is in the off position,
the rear interior light will not turn on
even if the door is opened with the
rear interior light switch in door
position.
Turns the light on
●Illuminated entry system: The lights automatically turn on/off according to
power switch mode, the presence of the electronic key, whether the doors
are locked/unlocked, and whether the doors are opened/closed.
● If the interior lights remain on when the power switch is turned off, the light
will go off automatically after 20 minutes.
● Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features: →P. 465)
Rear interior light
1
2
NOTICE
To prevent 12-volt battery discharge, do not leave the lights on longer than
necessary when the hybrid system is off.
Page 299 of 496
299
6Maintenance and care
PRIUS +_OM_OM47888E_(EE)6-1. Maintenance and care
Cleaning and protecting the vehicle exterior .......... 300
Cleaning and protecting the vehicle interior ........... 305
6-2. Maintenance Maintenance requirements.................... 308
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ...................... 311
Hood .................................. 313
Positioning a floor jack ....... 315
Engine compartment.......... 317
12-volt battery .................... 327
Tires ................................... 331
Tire inflation pressure ........ 343
Wheels ............................... 345
Air conditioning filter .......... 347
Wiper rubber replacement ..................... 349
Electronic key battery ........ 351
Checking and replacing fuses ................................ 353
Light bulbs ......................... 357
Page 328 of 496

3286-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
The meanings of each caution symbol on the top of the 12-volt battery
are as follows:
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, obser ve the following precautions before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
●Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the doors.
● Start the hybrid system with the pow er switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
● Restart the hybrid system, depress the brake pedal, and confirm that it is
possible to shift into each shift position.
If the system will not start even after multiple attempts at all methods above,
contact any authorized Toyota dealer or repairer, or another duly qualified and
equipped professional.
Caution symbols
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from
childrenExplosive gas
Page 351 of 496
3516-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
6
Maintenance and care
Electronic key batter y
●Flathead screwdriver
● Lithium battery CR1632
Take out the mechanical key.
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
When installing, reverse the steps listed.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
ITO43P194
3
4
Page 352 of 496

3526-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
■Use a CR1632 lithium battery
●Batteries can be purchased at any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to the local laws.
■ If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system and wireless remote control will not function
properly.
● The operational range will be reduced.
WARNING
■ Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
■ Certification for the smart entry & start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote control.
● Do not bend either of the battery terminals.
Page 367 of 496

367
7When trouble arises
PRIUS +_OM_OM47888E_(EE)7-1. Essential information
Emergency flashers ........... 368
If your vehicle has to be stopped in an
emergency ....................... 369
7-2. Steps to take in an emergency
If your vehicle needs to be towed ...................... 370
If you think something is wrong ............................... 375
If a warning light turns on or a warning buzzer
sounds ............................. 376
If a warning message is displayed ......................... 388
If you have a flat tire (vehicles with a
spare tire) ........................ 404
If you have a flat tire (vehicles without a
spare tire) ........................ 418
If the hybrid system will not start............................ 435
If the electronic key does not operate properly ........ 437
If the 12-volt battery is discharged ....................... 439
If your vehicle overheats ......................... 444
If the vehicle becomes stuck ................................ 449