2023 TOYOTA PRIUS PRIME maintenance

5678-2. Steps to take in an emergency
8
When trouble arises
*: A buzzer sounds the first time a message is shown on the multi-informa-tion display.
■Warning messages
The warning messages explained
below may differ from the actual
messages according to operation
conditions and vehicle specifica-
tions.
■If a message about an operation
is shown
●If a message about an operation
of the accelerator pedal or brake
pedal is shown
• A warning message about an
operation of the brake pedal may
be shown while the driving assist
systems such as PCS (Pre-Colli-
sion system) or the dynamic radar
cruise control is operating. If a
warning message is shown, be
sure to decelerate the vehicle or
follow an instruction shown on the
multi-informat ion display.
• A warning message is shown when Brake Override System
operates. (
P.240, 573)
• A warning message is shown when Drive-Start Control or Park-
ing Support Brake (if equipped)
(  P.245, 382) operates. Follow
the instructions on the multi-infor-
mation display.
●If a message about an operation
of the power switch is shown
An instruction for operation of the
power switch is shown when the
incorrect procedure for starting the
hybrid system is performed or the
power switch is operated incorrectly.
Follow the instructions shown on the
multi-information display to operate
the power switch again.
●If a message about a shift lever
operation is shown
Warning lightWarning
buzzer
*Warning
Sounds
 Indicates an important situation, such as
when a system related to driving is mal-
functioning or that danger may result if
the correction procedure is not per-
formed
 Indicates a situation, such as when dam-
age to the vehicle or danger may result
Comes on or
flashesSounds
Indicates an important situation, such as
when the systems shown on the multi-
information display ma y be malfunctioning
Does not
sound
 Indicates a condition, such as malfunc-
tion of electrical components, their con-
dition, or indicates the need for
maintenance
 Indicates a situation, such as when an
operation has been performed incor-
rectly, or indicates how to perform an
operation correctly

5728-2. Steps to take in an emergency
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●PDA (Proactive Driving Assist)
Follow the following correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.286)
• The radar sensor may be mis-
aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.
■If “Unavailable Activation Con-
dition not Satisfied See Owner’s
Manual” is displayed
The LCA function cannot be
used as the operating conditions
have not been met.
Operate the turn signal lever again
after all of the op erating conditions
are met.
■If “Cruise Control Unavailable
See Owner’s Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist switch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If “Driver Monitor Out of Tem-
perature Range Wait until Nor-
mal Temperature” is displayed
Indicates one of the following sys-
tems is disabled.
●Driver monitor (if equipped)
●Traffic Jam Assist (if equipped)
The temperature of the driver moni-
tor camera is outside of the operat-
ing range. Wait for the temperature
to become appropriate.
■If “Driver Monitor Unavailable
See Owner’s Manual” is dis-
played
The lens of the driver monitor cam-
era may be dirty.
When there is dirt on the camera
lens, clean it with a dry, soft cloth so
as to not damage it.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level may be low.
Check the level of the engine oil,
and add engine oil if necessary.
(  P.506) This message may be
displayed if the vehicle is stopped
on a slope. Move the vehicle to a
level surface and check if the mes-
sage disappears.
■If “Maintenance Required
Soon” is shown
Indicates that all maintenance
according to the driven distance on
the maintenance schedule
* should
be performed soon.
Comes on approximately 4500
miles (7200 km) after the message
has been reset.
If necessary, perform maintenance.
Please reset the message after the
maintenance is performed.
(  P.495)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Maintenance Required Visit
Your Dealer” is shown
Indicates that all maintenance is
required to correspond to the driven

5738-2. Steps to take in an emergency
8
When trouble arises
distance on the maintenance sched-
ule*.
Comes on approximately 5000
miles (8000 km) after the message
has been reset. (The indicator will
not work properly unless the mes-
sage has been reset.)
Perform the necessary mainte-
nance. Please reset the message
after the maintenance is performed.
(  P.495)
*: Refer to the separate “Scheduled
Maintenance Guide” or “Owner’
Manual Supplement” for the main-
tenance interval applicable to your
vehicle.
■If “Engine Maintenance
Required Visit Your Dealer” is
shown
The engine or an engine component
is malfunctioning. Have the vehicle
inspected by your Toyota dealer
immediately.
■If “Oil Maintenance Required
Soon” is displayed
Indicates that the engine oil should
be scheduled to be changed.
Check the engine oil and change it if
necessary.
After changing the engine oil, make
sure to reset the message.
(  P.506)
■If “Oil Maintenance Required
Visit Your Dealer” is displayed
Indicates that the engine oil should
be changed.
Check and change the engine oil,
and oil filter by your Toyota dealer.
After changing the engine oil, make
sure to reset the message.
(  P.506)
■If “Accelerator and Brake Ped-
als Pressed Simultaneously” is
shown
The accelerator and brake pedals
are being depressed simultane-
ously. ( P.240) Release the accelerator pedal and
depress the brake pedal.
■Warning buzzer
 P.563
WARNING
■If a warning light comes on or
a warning buzzer sounds
when a warning message is
shown on the multi-informa-
tion display
 P.564
NOTICE
■If “Maintenance Required For
Traction Battery At Your
Dealer” is shown
The hybrid battery (traction bat-
tery) is scheduled to be inspected
or replaced. Have the vehicle
inspected by your Toyota dealer
immediately.
●Continuing to drive the vehicle
without having the hybrid bat-
tery (traction battery) inspected
will cause the hybrid system not
to start.
●If the hybrid system does not
start, contact your Toyota
dealer immediately.

599
9
9
Vehicle specifications
Vehicle specifications
9-1. SpecificationsMaintenance data (fuel, oil level, etc.) .................. 600
Fuel information .......... 607
Tire information ........... 609
9-2. Customization Customizable features 618
9-3. Initialization Items to initialize ......... 634

6009-1. Specifications
9-1.Specifications
*: Unladen vehicle
■Vehicle identification num-
ber
The vehicle identification num-
ber (VIN) is the legal identifier
for your vehicle. This is the pri-
mary identification number for
your Toyota. It is used in regis-
tering the ownership of your
vehicle.
This number is on the top left of the instrument panel.
This number is also stamped
Maintenance data (fuel, oil level, etc.)
Dimensions and weights
Overall length181.1 in. (4599 mm)
Overall width70.2 in. (1782 mm)
Overall height*
Vehicles with 17-inch tires
55.9 in. (1420 mm)
Vehicles with 19-inch tires
56.3 in. (1430 mm)
Wheelbase108.3 in. (2750 mm)
Tread
Front61.5 in. (1563 mm)
Rear
Vehicles with 17-inch tires
62.17 in. (1579 mm)
Vehicles with 19-inch tires
62.20 in. (1580 mm)
Vehicle capacity weight (Occupants +
luggage)860 lb. (390 kg)
Seating capacity
Seating capacity5 (Front 2, Rear 3)
Vehicle identification

6349-3. Initialization
9-3.Initialization
*: If equipped
Items to initialize
The following items must be initialized for normal system
operation after such cases as the battery being reconnected,
or maintenance being performed on the vehicle:
List of the items to initialize
ItemWhen to initializeReference
Power back door*• After reconnecting or chang-ing the battery
• After changing a fuse
P.199
Power windowsWhen functioning abnormallyP.227
Maintenance required
reminder message• After the maintenance is performedP.495
Oil maintenanceAfter the maintenance is per-
formedP.506

650Alphabetical Index
Alphabetical Index
A
A/C ........................................... 434“My Room Mode” ................. 134
Air conditioning eco mode .... 437
Air conditioning filter ............. 535
Automatic air conditioning sys-tem ..................................... 434
Humidity sensor ................... 439
ABS (Anti-lock Brake System) ............................................... 424Function ............................... 424
Warning light ........................ 557
ACA (Active Cornering Assist) ............................................... 424
AC charging cable .................... 97 CCID (Charging Ci rcuit Interrupt-
ing Device) indicator............. 99
CCID (Charging Ci rcuit Interrupt-
ing Device) ........................... 98
Charging cable indicator ...... 118
If the charging connector cannot be unlocked ........................ 104
Locking and unlocking.......... 102
Maintenance......................... 101
Safety functions...................... 99
Acoustic Vehicle Alerting Sys- tem ........................................... 81
Active Cornering Assist (ACA) ............................................... 424
AHB (Automatic High Beam) . 272
Airbags ...................................... 35 Airbag operating conditions.... 37
Airbag precautions for your child............................................. 40
Airbag warning light.............. 557
Correct driving posture ........... 29
Curtain shield airbag operating conditions ............................. 38
Curtain shield airbag precautions ............................................. 40
Front passenger occupant clas- sification system ...................44
General airbag precautions ....40
Location of the SRS airbags...35
Locations of airbags ...............35
Modification and disposal of air- bags......................................42
Seat cushion airbag................35
Side airbag operating conditions .............................................38
Side airbag precautions..........40
Side and curtain shield airbags operating conditions .............38
Side and curtain shield airbags precautions ...........................40
SRS airbags ...........................35
SRS warning light .................557
Air conditioning filter .............535
Air conditioning system.........434 “My Room Mode” ..................134
Air conditioning eco mode ....437
Air conditioning filter .............535
Automatic air conditioning sys-tem .....................................434
Humidity sensor....................439
Alarm Warning buzzer .. ..................555
Anchor brackets .................53, 62
Antenna Smart key system .................203
Anti-lock brake system (ABS)424 Function................................424
Warning light ........................557
Armrest ......... ......................... ..465
Assist grips .............................466
AUTO EV/HV mode ...................73
AUTO EV/HV mode switch .......74
Automatic air conditioning sys- tem .........................................434“My Room Mode” ..................134
Air conditioning eco mode ....437
Air conditioning filter .............535
Humidity sensor....................439

Alphabetical Index653
Energy monitor ..................... 173
Intuitive parking assist .......... 363
Multi-information display ...... 161
Parking Support Brake function (rear pedestrians) ............... 394
RCD (Rear Camera Detection) ........................................... 379
RCTA ................................... 373
Warning messages .............. 566
Do-it-yourself maintenance . 495, 499
Door lock Back door ............................. 191
Side doors ............................ 185
Smart key system................. 203
Wireless remote control ....... 182
Doors Automatic door locking and unlocking system................ 190
Back door ............................. 191
Door glasses ........................ 227
Door lock .............................. 185
Open door warning buzzer ... 189
Outside rear view mirrors ..... 225
Rear door child-protector lock ........................................... 189
Side doors ............................ 185
Driver’s seat belt reminder light ............................................... 562
Driver’s seat position memory ............................................... 231Driving position memory....... 231
Memory recall function ......... 232
Driver monitor ........................ 292
Drive-Start Control (DSC) ...... 245 Sudden start restraint control245
Driving ..................................... 239 Break-in tips ......................... 240
Correct posture ...................... 29
Driving in the rain ................. 240
Driving mode select switch... 422
Plug-in Hybrid Electric Vehicle driving tips ............................88
Procedures ...........................239
Winter drive tips....................429
Driving information display ...163
Driving mode select switch ...422
Driving position memory .......230 Memory recall function .........232
Power easy access system ..230
Seat position memory...........231
Driving support system informa- tion display............................165
DSC (Drive-Start Control) ......245 Sudden start restraint control245
Dynamic radar cruise control Function................................331
Warning message . ...............566
E
Eco drive mode .......................422
EDR (Event data recorder) .......10
Elapsed time ...........................165
Electric motor (traction motor)72
Location ..................................72
Specification .........................602
Electric Power Steering (EPS)
Function................................424
Warning light ........................558
Electronic key Battery-saving function .........204
If the electronic key does not operate properly .................587
Replacing the battery ...........538
Emergency, in case of If a warning buzzer sounds ..555
If a warning light turns on .....555
If a warning message is dis-played .................................566
If the 12-volt battery is dis- charged ..............................589
If the electronic key does not operate properly .................587
If the hybrid system will not start