2023 TOYOTA PRIUS PRIME checking oil

5TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
Electronic key battery....538
Checking and replacing fuses............................ 540
Headlight aim ................ 542
Exterior lights ................ 543
8-1. Essential information Emergency flashers ...... 546
If your vehicle has to be stopped in an emergency.................................... 547
If the vehicle is submerged or water on the road is rising.................................... 548
8-2. Steps to take in an emer- gency
If your vehicle needs to be towed........................... 550
If you think something is wrong .......................... 554
If a warning light turns on or a warning buzzer sounds.................................... 555
If a warning message is dis- played.......................... 566
If you have a flat tire...... 574
If the hybrid system will not start ............................. 584
If you lose your keys ..... 586
If the electronic key does not operate properly .......... 587
If the 12-volt battery is dis- charged ....................... 589
If your vehicle overheats 594
If the vehicle becomes stuck .................................... 5979-1. Specifications
Maintenance 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
10-1.For owners Reporting safety defects for U.S. owners ................. 636
Reporting safety defects for Canadian owners ........ 637
Seat belt instructions for Canadian owners (in
French) ........................ 637
SRS airbag instructions for Canadian owners (in
French) ........................ 639
Headlight aim instructions for Canadian owners (in
French) ........................ 646
What to do if... (Trouble- shooting) ..................... 648
Alphabetical Index ........ 650
8When trouble arises
9Vehicle specifications
10For owners
Index

17Pictorial index
Defogging the mirrors*.........................................................P.436
Windshield wipers .............................................................P.275
Precautions for winter season.... ..........................................P.429
To prevent freezing (windshield de-icer)
*.............................P.440
Precautions against car wash ..............................................P.488
Fuel filler door ....................................................................P.279
Refueling method .................................................................P.279
Fuel type/fuel tank capacity .................................................P.601
Tires ....................................................................................P.513
Tire size/inflation pressure ...... .............................................P.605
Winter tires/tire chain ...........................................................P.429
Checking/rotation/tire pressure warning system ..................P.513
Coping with flat tires.............................................................P.574
Hood ....................................................................................P.501
Opening ...............................................................................P.501
Engine oil .............................................................................P.602
Coping with overheat ...........................................................P.594
Warning messages ..............................................................P.566
Headlights...........................................................................P.269
Parking lights .....................................................................P.269
Daytime running lights ............... .......................................P.269
Front turn signal lights ......................................................P.262
LED accessories lamp
*......................................................P.269
Front side marker lights ....................................................P.269
Tail lights
*...........................................................................P.269
Stop lights/tail lights ..........................................................P.269
Exterior lights for driving
(Replacing: P.543)
E
F
G
H
I
J
K
L
M
N
O
P

5047-3. Do-it-yourself maintenance
Engine oil filler cap (P.506)
Engine oil level dipstick ( P.504)
Brake fluid reservoir ( P.509)
Fuse boxes ( P.540)
Washer fluid tank ( P.510)
Radiator ( P.508)
Electric cooling fan
Condenser ( P.508)
Power control unit coolant reservoir ( P.507)
Engine coolant reservoir ( P.507)
■12-volt battery
 P.511
With the engine at operating
temperature and turned off,
check the oil level on the dip-
Engine compartment
Components
A
B
C
D
E
F
G
H
I
J
Checking the engine oil

5057-3. Do-it-yourself maintenance
7
Maintenance and care
stick.
1Park the vehicle on level
ground. After warming up the
engine and turning off the
hybrid system, wait about 5
minutes for the oil to drain
back into the bottom of the
engine.
2 Holding a rag under the end,
pull the dipstick out.
3 Wipe the dipstick clean.
4 Reinsert the dipstick fully.
5 Holding a rag under the end,
pull the dipstick out and
check whether the oil level is
above low level mark.
Low level mark
The shape of the dipstick may differ
depending on the type of vehicle or
engine.
6Wipe the dipstick and reinsert
it fully.
■Engine oil consumption
A certain amount of engine oil will
be consumed while driving. In the
following situations, oil consump-
tion may increase, and engine oil
may need to be re filled in between
oil maintenance intervals.
●When the engine is new, for
example directly after purchasing
the vehicle or after replacing the
engine
●If low quality oil or oil of an inap-
propriate viscosity is used
●When driving at high engine
speeds or with a heavy load, or
when driving while accelerating or
decelerating frequently
●When leaving the engine idling for
a long time, or when driving fre-
quently through heavy traffic
■Engine oil level rise
If the vehicle is repeatedly driven
without the engine warmed up,
moisture caused by dew condensa-
tion inside the engine or fuel which
did not burn mixes into the engine
oil, resulting in a rise in engine oil
level.
However, this is not a malfunction.
For example, the engine become
difficult to be warmed up in the fol-
lowing situations.
●When driving a short distance
●When driving at a low speed
●When the outside temperature is
low
When checking the engine oil, make
A
NOTICE
■To prevent serious engine
damage
Check the oil le vel on a regular
basis.

5067-3. Do-it-yourself maintenance
sure that the engine is warmed up. If
the engine oil level exceeds the refill
upper limit mark, contact your
Toyota dealer.
■Checking the oil type and
preparing the items needed
Make sure to check the oil type
and prepare the items needed
before adding oil.
 Engine oil selection
P.602
 Oil quantity (Low level mark
 Refill upper limit mark)
1.6 qt. (1.5 L, 1.3 Imp. qt.)
 Item
Clean funnel
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
1 Remove the oil filler cap by
turning it counterclockwise.
2 Add engine oil slowly, check-
ing the dipstick.
Make sure that the oil level does
not exceed the refill upper limit mark and is between the low level
mark and refill upp
er limit mark.
Low level mark
Refill upper limit mark
The shape of the dipstick may differ
depending on the type of vehicle or
engine.
3Install the oil filler cap by
turning it clockwise.
■After changing the engine
oil
The engine oil maintenance
data should be reset. Perform
the following procedures:
1 Press or of the meter
control switches and select
on the multi-information
display.
2 Press or of the meter
control switches and select
“ Vehicle Settings”. Then
press and hold .
3 Press or of the meter
control switches and select
“Oil Maintenance”. Then
press .
4 Select “Yes” and press .
Adding engine oil
A
B

5077-3. Do-it-yourself maintenance
7
Maintenance and care
The coolant level is satisfactory
if it is between the “MAX” and
“MIN” lines on the reservoir
when the hybrid system is cold.
■Engine coolant reservoirReservoir cap
“MAX” line
“MIN” line
If the level is on or below the “MIN”
line, add coolant up to the “MAX”
line. ( P.594)
■Power control unit coolant
reservoir
Reservoir cap
“MAX” line
“MIN” line
If the level is on or below the “MIN”
line, add coolant up to the “MAX”
WARNING
■Used engine oil
●Used engine oil contains poten-
tially 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 your Toyota dealer, service
station or auto parts store for
information concerning recy-
cling or disposal.
●Do not leave used engine oil
within the reach of children.
NOTICE
■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 dip-
stick every time you refill the
vehicle.
●Be sure the engine oil filler cap
is properly tightened.
■If oil is spilled on the engine
cover
To prevent the engine cover from
being damaged, remove any
engine oil from the engine cover
as soon as possible using a neu-
tral detergent. Do not use an
organic solvent such as brake
cleaner.
Checking the coolant
A
B
C
A
B
C

654Alphabetical Index
........................................... 584
If the vehicle is submerged or water on the road is rising .. 548
If you have a flat tire ............. 574
If you lose your keys ............ 586
If you think something is wrong ........................................... 554
If your vehicle becomes stuck ........................................... 597
If your vehicle has to be stopped in an emergency................. 547
If your vehicle needs to be towed ........................................... 550
If your vehicle overheats ...... 594
Emergency flashers ............... 546
Emergency tire puncture repair kit ........................................... 574
Energy monitor ....................... 173
Engine Compartment ....................... 504
Hood..................................... 501
Identification number ............ 601
Engine coolant Capacity ............................... 603
Checking .............................. 507
Preparing and checking before winter.................................. 429
Warning light ........................ 556
Engine coolant temperature gauge..................................... 155
Engine oil Capacity ............................... 602
Checking .............................. 504
Preparing and checking before winter.................................. 429
Warning light ........................ 556
Engine oil maintenance data160, 506
Enhanced Vehicle Stability Con- trol (Enhanced VSC) ............ 424
Enhanced VSC (Enhanced Vehi- cle Stability Control) ............ 424 EPS (Electric Power Steering)
Function................................424
Warning light ........................558
EV/HV mode selection switch .74
EV driving range .......................90
Event data recorder (EDR) .......10
EV indicator...............................78
EV mode ....................................73
F
Flat tire.....................................574 Tire pressure warning system...........................................516
Floor mats .................................28
Fluid Brake ............................509, 604
Hybrid transmission ..............604
Washer .................................510
Footwell lights ........................446
Front doors .............................185
Front passenger’s seat belt reminder light........................562
Front passenger occupant clas- sification system ....................44
Front seat heaters ..................443
Front seats ..............................209 Adjustment ...........................209
Cleaning ...............................490
Correct driving posture ...........29
Driving position memory .......230
Head restraints .....................212
Memory recall function .........232
Power easy access system ..230
Seat heaters .........................443
Seat position memory...........231
Seat ventilators.....................444
Front side marker lights.........269 Replacing exterior lights .......543
Switch ...................................269
Front turn signal lights ..........262 Replacing exterior lights .......543
Turn signal lever ...................262

Alphabetical Index663
Vehicle identification number600
Vehicle Stability Control (VSC)............................................... 424
Ventilators (seat ventilators) . 444
VSC (Vehicle Stability Control) ............................................... 424
W
Warning buzzers Brake hold ............................ 561
Brake Override System ........ 560
Brake system ....................... 555
Drive-Start Control ............... 560
Electric power steering ......... 558
High coolant temperature ..... 556
Intuitive parking assist OFF indi-
cator ................................... 560
Intuitive parking assist .......... 368
Low engine oil pressure ....... 556
LTA (Lane Tracing Assist).. 305, 558
Open door ............................ 189
Open hood ........................... 189
PKSB.................................... 560
Pre-collision warning ............ 293
Seat belt reminder ................ 562
Warning lights ABS ...................................... 557
Brake hold operated indicator........................................... 561
Brake system ....................... 555
Charging system .................. 555
Cruise control indicator ........ 559
Driving assist information indica- tor ....................................... 559
Dynamic radar cruise control indicator.............................. 559
Electric power steering ......... 558
High coolant temperature ..... 556
Hybrid system overheat ....... 556
Inappropriate pedal operation ........................................... 560 Intuitive parking assist OFF indi-
cator ...................................560
LDA indicator ........................558
Low engine oil pressure .......556
Low fuel level........................562
LTA indicator ........................558
Malfunction indica tor lamp ....556
Parking brake indicator.........561
PCS ......................................558
PDA indicator .......................559
Seat belt reminder light ........562
Slip indicator .........................560
SRS ......................................557
Tire pressure ........................561
Warning messages .................566
Warning reflector storage space ...............................................455
Washer.....................................275 Camera washer ....................275
Checking ..............................510
Low washer fluid warning mes-sage............................510, 566
Preparing and checking before winter ..................................429
Switch ...................................275
Washing and waxing ..............486
Weight Cargo capacity .............246, 249
Load limits ............................249
Weight ..................................600
Wheels .....................................534 Replacing wheels .................534
Size ......................................605
Window glasses......................227
Window lock switch ...............229
Windows Power windows ....................227
Rear window defogger .........436
Washer .................................275
Windshield defogg er ..............435
Windshield de-icer..................439
Windshield wipers