engine oil TOYOTA PRIUS 2023 User Guide

5817-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
7
When trouble arises
Low engine oil pressure warning light
(warning buzzer)*2
Indicates that the engine oil pressure is too low
 Immediately stop the vehicle in a safe place and con-
tact any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Malfunction indicator lamp
Indicates a malfunction in:
• The hybrid system;
• The electronic engine control system;
• The electronic throttle control system; or
• The emission control system (if equipped)
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
ABS warning light
Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
(Red/yellow)
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer immediately.
Warning lightWarning light/Details/Actions

5857-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
7
When trouble arises
*1: Brake system warning buzzer:
When there is a possible problem that could affect braking performance,
the warning light will come on and a warning buzzer will sound.
*2: Low engine oil pressure warning buzzer:
A buzzer also sounds continuously for approximately 30 seconds at maxi-
mum in addition to the low engine oil pressure warning light when the
“READY” indicator is illuminated.
*3: Open door warning buzzer:
The open door warning buzzer sounds to alert one or more of the doors is
not fully closed (with the vehicle having reached a speed of 5 km/h
[3 mph]).
*4: Driver’s and front passenger’s seat belt warning buzzer:
The driver’s and front passenger’s seat belt warning buzzer sounds to alert
the driver and front passenger that his or her seat belt is not fastened. If
the seat belt is unfastened, the buzzer sounds intermittently for a certain
period of time after the vehicle reaches a certain speed.
Inappropriate pedal operation warning light*6 (warning
buzzer)
When a buzzer sounds:
Indicates a malfunction in:
• The Brake Override System
• The Drive-Start Control
 Have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable
repairer.
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal.
 Momentarily release the accelerator pedal.
Indicates that the Parking Support Brake function (if
equipped) is operating ( P. 400)
 Follow the instruction that is displayed on the multi-
information display.
When a buzzer does not sound:
Indicates that the accelerator and brake pedals are being
depressed simultaneously, and the Brake Override Sys-
tem is operating.
 Release the accelerator pedal and depress the brake
pedal.
Warning lightWarning light/Details/Actions

5937-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
7
When trouble arises
■If “See Owner’s Manual” is shown
● If “Braking Power Low Stop in a Safe Place See Owner’s Manual” is shown,
this may be a malfunction. Immediately stop the vehicle in a safe place and
contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer. Continuing to drive the vehicle may be dangerous.
● If “Engine Oil Pressure Low” is shown, this may be a malfunction. Immedi-
ately stop the vehicle in a safe place and contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
● If the following messages are shown, there may be a malfunction. Immedi-
ately have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Entry & Start System Malfunction See Owner’s Manual”
● Vehicles with GPF system: If “Exhaust Filter Full See Owner’s Manual” is
shown on the multi-information display is shown, follow the instruction.
( P. 440)
■ If “Shift System Not Active Apply Parking Brake Securely While Parking
See Owner’s Manual” is shown
Indicates a temporary operation failure or malfunction in the shift control sys-
tem. Immediately have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 597)
■ If “Shift System Malfunction Apply Parking Brake Securely While Park-
ing See Owner’s Manual” is shown
Indicates a malfunction in the shift control system. Immediately have the vehi-
cle inspected by any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 597)
■ If “ Switch Malfunction Apply Parking Brake Securely While Parking
See Owner’s Manual” is shown
The P position switch may not operate. Immediately have the vehicle
inspected by any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer.
When parking the vehicle, stop the vehicle on level ground and apply the
parking brake firmly.

5967-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
■ If “Auto Power OFF to Conserve Battery” is shown
The power switch has been turned off by the automatic power off function.
When starting the hybrid system next time, operate the hybrid system for
approximately 5 minutes to recharge the 12-volt battery.
■ 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. 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 “Accelerator and Brake Pedals Pressed Simultaneously” is shown
The accelerator and brake pedals are being depressed simultaneously.
( P. 221)
Release the accelerator pedal and depress the brake pedal.
■ If a message that indicates the malfunction of front camera is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 294, 580)
● PCS (Pre-Collision System) (if equipped)
● LTA (Lane Tracing Assist) (if equipped)
● AHB (Automatic High Beam) (if equipped)
● RSA (Road Sign Assist) (if equipped)
● Dynamic radar cruise control with full-speed range (if equipped)
■ If a message that indicates the malfunction of radar sensor is displayed
The following systems may be suspended until the problem shown in the
message is resolved. ( P. 294, 580)
● PCS (Pre-Collision System) (if equipped)
● LTA (Lane Tracing Assist) (if equipped)
● Dynamic radar cruise control with full-speed range (if equipped)
■ If “Radar Cruise Control Unavailable See Owner’s Manual” is shown
The dynamic radar cruise control with full-speed range system is suspended
temporarily or until the problem show n in the message is resolved. (causes
and coping methods: P. 294)
■ If “Radar Cruise Control Unavailable” is shown
The dynamic radar cruise control with full-speed range system cannot be
used temporarily. Use the system when it becomes available again.

6588-1. Specifications
PRIUS_OM_OM47F32E_(EE)■
Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Park the vehicle on level ground. After warming up the
engine and turning off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-16:
API grade SN “Resource-Conserving”, SN PLUS “Resource-Con-
serving” or SP “Resource-Conserving”; or ILSAC GF-6B multigrade
engine oil
0W-20 and 5W-30:
API grade SM “Energy-Conserving”, SN “Resource-Conserving”,
SN PLUS “Resource-Conserving” or SP “Resource-Conserving”; or
ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-16 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If SAE 0W-16 oil is not avail-
able, SAE 0W-20 oil may be
used. However, it should be
replaced with SAE 0W-16 at the
next oil change.
Lubrication system (except for Georgia, New Caledonia and Rus-
sia)
With filter4.2 L (4.4 qt., 3.7 Imp.qt.)
Without filter3.9 L (4.1 qt., 3.4 Imp.qt.)
Temperature range anticipated
before next oil change
Preferred

6598-1. Specifications
PRIUS_OM_OM47F32E_(EE)
8
Vehicle specifications
Oil viscosity (0W-16 is explained here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil which
allows cold startability. Oils with a lower value before the W allow
for easier starting of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SP”
means the oil quality designa-
tion by American Petroleum Ins-
titute (API).
Center portion: “SAE 0W-16”
means the SAE viscosity grade.
Lower portion: “Resource-
Conserving” means that the oil
has fuel-saving and environ-
mental protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
1
2

6608-1. Specifications
PRIUS_OM_OM47F32E_(EE)■
Oil capacity (Drain and refill [Reference*])
*: The engine oil capacity is a reference quantity to be used when changing
the engine oil. Park the vehicle on level ground. After warming up the
engine and turning off the hybrid system, wait more than 5 minutes, and
check the oil level on the dipstick.
■
Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade:
0W-20, 5W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving”, SN
“Resource-Conserving”, SN PLUS “Resource-Conserving” or SP
“Resource-Conserving”; or ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufactur-
ing, and the best choice for
good fuel economy and good
starting in cold weather.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures,
the engine may become difficult
to start, so SAE 0W-20, 5W-20
or 5W-30 engine oil is recom-
mended.
Lubrication system (for Georgia, New Caledonia and Russia)
With filter4.2 L (4.4 qt., 3.7 Imp.qt.)
Without filter3.9 L (4.1 qt., 3.4 Imp.qt.)
Temperature range anticipated
before next oil change
Preferred

6618-1. Specifications
PRIUS_OM_OM47F32E_(EE)
8
Vehicle specifications
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which
allows cold startability. Oils with a lower value before the W allow
for easier starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil contain-
ers to help you select the oil you should use.
API Service Symbol
Top portion: “API SERVICE SP”
means the oil quality designa-
tion by American Petroleum Ins-
titute (API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has
fuel-saving and environmental
protection capabilities.
ILSAC Certification Mark
The International Lubricant Specification Advisory Committee (ILSAC)
Certification Mark is displayed on the front of the container.
1
2

691Alphabetical index
PRIUS_OM_OM47F32E_(EE)
Engine oil.................................. 515
Capacity ................................ 658
Checking ............................... 515
Oil pressure warning light ..... 581
Preparing and checking
before winter....................... 452
Engine switch (power
switch) .................................... 244
Auto power off function ......... 246
Changing the power switch
modes................................. 246
If your vehicle has to be
stopped in an emergency ... 569
Starting the hybrid system .... 244
EPS (Electric Power
Steering) ................................. 442
Function ................................ 442
Warning light ......................... 581
ERA-GLONASS .......................... 74
EV drive mode .......................... 250
EV indicator .............................. 132
EVAK ........................................... 74
Exhaust gas precautions .......... 50
Extended Headlight
Lighting system ..................... 263First-aid kit storage space ...... 481
Flat tire.............................. 598, 618
Floor mat .................................... 30
Fluid
Brake .................................... 664
Transmission ........................ 663
Washer ................................. 526
Fog lights ................................. 270
Replacing light bulbs............. 565
Switch ................................... 270
Footwell lights ......................... 470
Front camera ............................ 283
Front doors .............................. 177
Front fog lights ........................ 270
Replacing light bulbs............. 565
Switch ................................... 270
Front passenger’s seat belt
reminder light ........................ 584
Front position lights ................ 261
Light switch ........................... 261
Replacing light bulbs............. 565
Front seat concentrated
airflow mode (S-FLOW) ........ 461
Front seats ............................... 194
Adjustment ............................ 194
Cleaning................................ 502
Correct driving posture ........... 32
Head restraints ..................... 199
Seat heaters ......................... 468
Front turn signal lights ........... 259
Replacing light bulbs............. 565
Turn signal lever ................... 259F

695Alphabetical index
PRIUS_OM_OM47F32E_(EE)
Multi-information display ........ 127
Air conditioning system
settings screen ................... 148
Audio system-linked
display ................................ 147
Display contents.................... 127
Drive information ................... 129
Driving assist system
information .......................... 152
Dynamic radar cruise control
with full-speed range .......... 329
Energy monitor...................... 130
Language .............................. 156
LTA (Lane Tracing Assist) .... 316
Parking Support Brake
function ............................... 400
Pre-collision warning ............. 297
RCTA detection screen ......... 356
RSA (Road Sign Assist) ........ 324
S-IPA (Simple Intelligent
Parking Assist System)....... 409
Settings display ..................... 153
Toyota parking
assist-sensor ...................... 382
Warning message display ..... 152
Multimedia system
*
Navigation system*
Odometer.................................. 121
Oil
Engine oil .............................. 658
Opener
Back door.............................. 182
Fuel filler door ....................... 279
Hood ..................................... 511
Outside rear view mirrors ....... 207
Adjustment ............................ 207
BSM (Blind Spot Monitor) ..... 356
Folding .................................. 207
Outside rear view mirror
defoggers ........................... 463
Outside temperature
display ............................ 118, 120
Overhead console ................... 477
Overheating.............................. 645
N
O
*: Refer to “Navigation and multimedia system Owner’s manual”.