Toyota Prius (2023 year). Manual in english - page 41

678

8-2. Customization

■

In the following situations, customize mode in which the settings can be
changed through the multi-information display will automatically be
turned off.

●

A warning message appears after the customize mode screen is displayed.

●

The power switch is turned off.

●

The vehicle begins to move while the customize mode screen is displayed.

WARNING

■

Cautions during customization

As the hybrid system needs to be operating during customization, ensure
that the vehicle is parked in a place with adequate ventilation. In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.

NOTICE

■

During customization

To prevent 12-volt battery discharge, ensure that the hybrid system is oper-
ating while customizing features.

679

8-3. Initialization

8

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Items to initialize

The following items must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being performed on the vehicle:

Item

When to initialize

Reference

Power window

When functioning abnormally

P. 211

Moon roof (if equipped)

When functioning abnormally

P. 217

Parking Support Brake func-
tion (if equipped)

After reconnecting or chang-
ing the 12-volt battery

P. 402

S-IPA (Simple Intelligent
Parking Assist System) (if
equipped)

After reconnecting or chang-
ing the 12-volt battery

P. 430

Panoramic view monitor (if
equipped)

After reconnecting or chang-
ing the 12-volt battery

Refer to 

“Navigation 

and multi-

media sys-

tem 

Owner’s 

manual”.

Tire pressure warning sys-
tem (if equipped)

• When rotating the tires on

vehicles with differing front
and rear tire inflation pres-
sures

• When changing the tire infla-

tion pressure by changing
traveling speed or load
weight, etc.

P. 530

682

What to do if... (Troubleshooting)

What to do if... (Troubleshooting)

●

If you lose your mechanical keys, new genuine mechanical keys can be
made by any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer. (



P. 173)

●

If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately. (



P. 176)

●

Is the electronic key battery weak or depleted? (



P. 554)

●

Is the power switch in ON mode? 
When locking the doors, turn the power switch off. (



P. 246)

●

Is the electronic key left inside the vehicle? 
When locking the doors, make sure that you have the electronic key on
your person.

●

The function may not operate properly due to the condition of the radio
wave. (



P. 190)

●

Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (



P. 180)

If you have a problem, check the following before contacting any
authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.

The doors cannot be locked, unlocked, opened or closed

You lose your keys

The doors cannot be locked or unlocked

The rear door cannot be opened

683

What to do if... (Troubleshooting)

●

Did you press the power switch while firmly depressing the brake pedal? 
(



P. 244)

●

Is the shift position in P? (



P. 254)

●

Is the electronic key anywhere detectable inside the vehicle? (



P. 188)

●

Is the electronic key battery weak or depleted? 
In this case, the hybrid system can be started in a temporary way. 
(



P. 637)

●

Is the 12-volt battery discharged? (



P. 639)

●

Is the window lock switch pressed?
The power windows except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. (



P. 210)

●

The auto power off function will be operated if the vehicle is left in
ACCESSORY or ON mode (the hybrid system is not operating) for a
period of time. (



P. 246)

If you think something is wrong

The hybrid system does not start

The windows do not open or close by operating the power
window switches

The power switch is turned off automatically

684

What to do if... (Troubleshooting)

●

The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (



P. 585)

●

The parking brake indicator is on
Is the parking brake released? (



P. 260)

Depending on the situation, other types of warning buzzer may also sound. 
(



P. 580, 589)

●

Did anyone inside the vehicle open a door during setting the alarm? 
The sensor detects it and the alarm sounds. (



P. 93)

To stop the alarm, turn the power switch to ON mode or start the hybrid sys-
tem.

●

Is the electronic key left inside the vehicle?
Check the message on the multi-information display. (



P. 589)

●

When a warning light turns on or a warning message is displayed, refer to 
P. 580, 589.

A warning buzzer sounds during driving

An alarm is activated and the horn sounds 
(vehicles with alarm)

A warning buzzer sounds when leaving the vehicle

A warning light turns on or a warning message is displayed

685

What to do if... (Troubleshooting)

●

Vehicles without spare tire
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. (



P. 598)

●

Vehicles with spare tire
Stop the vehicle in a safe place and replace the flat tire with the spare tire. 
(



P. 618)

●

Try the procedure for when the vehicle becomes stuck in mud, dirt, or
snow. (



P. 650)

When a problem has occurred

If you have a flat tire

The vehicle becomes stuck