2023 TOYOTA PRIUS oil level

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PRIUS_OM_OM47F32E_(EE)
7-1. Essential information
Emergency flashers ...........568
If your vehicle has to
be stopped in an
emergency .......................569
If the vehicle is submerged
or water on the road is
rising ................................570
7-2. Steps to take in an
emergency
If your vehicle needs
to be towed ......................572
If you think something is
wrong ...............................579
If a warning light turns on
or a warning buzzer
sounds .............................580
If a warning message is
displayed .........................589
If you have a flat tire
(vehicles without
spare tire) ........................598
If you have a flat tire
(vehicles with
spare tire) ........................618
If the hybrid system will
not start............................634
If the electronic key does
not operate properly ........636
If the 12-volt battery is
discharged .......................639
If your vehicle
overheats .........................645
If the vehicle becomes
stuck ................................650
8-1. Specifications
Maintenance data
(fuel, oil level, etc.) .......... 654
Fuel information ................ 668
8-2. Customization
Customizable features ...... 670
8-3. Initialization
Items to initialize................ 679
7When trouble arises8Vehicle specifications

3184-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 50 km/h (32 mph) or more.
*1
• System recognizes white (yellow) lane lines or a course*2. (When a white
[yellow] line or course
*2 is recognized on only one side, the system will
operate only for the recognized side.)
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. (P. 322)
*1: The function operates even if the vehicle speed is less than approxi-
mately 50 km/h (32 mph) when the lane centering function is operating.
*2: Boundary between asphalt and the side of the road, such as grass, soil,
or a curb
●Steering assist function
This function operates when all of the following conditions are met in addi-
tion to the operation conditions for the lane departure alert function.
• Setting for (“LTA Steering Assist Mode”) in of the multi-
information display is set to “On”. (P. 127)
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for
changing lanes.
• ABS, VSC, TRC and PCS are not operating.
• TRC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. (P. 321)
●Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for (“Lane Sway Warning Status”) in of the multi-
information display is set to “On”. (P. 127)
• Vehicle speed is approximately 50 km/h (32 mph) or more.
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• No system malfunctions are detected. (P. 322)

5086-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
ItemsParts and tools
12-volt battery
condition
(P. 521)• Warm water • Baking soda • Grease
• Conventional wrench (for terminal clamp bolts)
• Distilled water
Engine/power
control unit
coolant level
(P. 518)• “Toyota Super Long Life Coolant” or a similar high
quality ethylene glycol-based non-silicate, non-
amine, non-nitrite and non-borate coolant with long-
life hybrid organic acid technology
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
• Funnel (used only for adding coolant)
Engine oil level
(P. 515)• “Toyota Genuine Motor Oil” or equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (P. 5 5 7 )• Fuse with same amperage rating as original
Hybrid battery
(traction battery)
air intake vent
(P. 545)• Vacuum cleaner, etc.
• Phillips screwdriver
Light bulbs
(P. 561)
• Bulb with same number and wattage rating as origi-
nal
• Phillips screwdriver
• Flathead screwdriver
• Wrench
Radiator and
condenser
(P. 520)

Tire inflation
pressure
(P. 537)• Tire pressure gauge
• Compressed air source
Washer fluid
(P. 526)• Water or washer fluid containing antifreeze (for win-
ter use)
• Funnel (used only for adding water or washer fluid)

5146-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
Engine compar tment
Engine coolant reservoir
( P. 518)
Fuse boxes ( P. 557)
Engine oil level dipstick
( P. 515)
Engine oil filler cap ( P. 516)
12-volt battery ( P. 521)
Power control unit coolant
reservoir ( P. 518)
Radiator ( P. 520)
Condenser ( P. 520)
Electric cooling fans
Washer fluid tank ( P. 526)
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5156-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
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Maintenance and care
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking 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 for
the oil to drain back into the bottom of the engine.
Holding a rag under the end,
pull the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.
Low
Normal
Excessive
Wipe the dipstick and reinsert it fully.
Engine oil
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5166-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)■
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.
Make sure to check the oil type and prepare the items needed
before adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
■Engine oil consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled 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 inappropriate viscosity is used
●When driving at high engine speeds or with a heavy load, when towing, or
when driving while accelerating or decelerating frequently
●When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selectionP. 658
Oil quantity (Low  Full)1.5 L (1.6 qt., 1.3 lmp. qt.)
ItemsClean funnel
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5176-3. Do-it-yourself maintenance
PRIUS_OM_OM47F32E_(EE)
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Maintenance and care
WARNING
■Used engine oil
● Used engine oil contains potentially 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 any authorized Toyota reta iler or Toyota authorized repairer,
or any reliable repairer, service station or auto parts store for information
concerning recycling or disposal.
● Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on a regular basis.
■ 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 dipstick every time you refill the vehicle.
● Be sure the engine oil filler cap is properly tightened.

5937-2. Steps to take in an emergency
PRIUS_OM_OM47F32E_(EE)
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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.