oil change TOYOTA PRIUS PRIME 2021 Owners Manual (in English)

PRIUS PRIME_OM_OM47D71U_(U)
3315-1. Before driving
5
Driving
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may
cause the following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be
sure to have your Toyota dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, hybrid
transmission, etc.
●Lubricant condition for the bearings and suspension joints (where possi-
ble), and the function of all joints, bearings, etc.
If the shift control system is damaged by flooding, it may not be possible to
shift the shift position to P, or from P to other positions. When the shift posi-
tion cannot be changed from P to any other position, the front wheels will
lock, and you will be unable to tow the vehicle with the front wheels on the
ground, as the front wheels may be locked. In this case, transport the vehi-
cle with both front wheels or all four wheels lifted. (P. 667)

6788-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D71U_(U)
Brake Override System/Drive-Start Control/
Parking Support Brake function (symbol display)
*6
Brake Override System
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.
Indicates a malfunction in the Brake Override System
(with warning buzzer)
Have the vehicle inspected by your Toyota dealer
immediately.
Drive-Start Control
Indicates that the shift position was changed and Drive-
Start Control was operated while depressing the accelera-
tor pedal (with warning buzzer)
Momentarily release the accelerator pedal.
Indicates a malfunction in the Drive-Start Control system
(with warning buzzer)
Have the vehicle inspected by your Toyota dealer
immediately.
Parking Support Brake function
Indicates that the Parking Support Brake function (if
equipped) is operating (P. 460)
Follow the instruction that is displayed on the multi-
information display.
(Canada only)
Low engine oil pressure warning (symbol display)*6
Indicates that the engine oil pressure is too low
Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Warning lightWarning light/Details/Actions

6878-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D71U_(U)
8
When trouble arises
■If “See Owner’s Manual” is shown
●<002c0049000300b3002500550044004e004c0051004a000300330052005a004800550003002f0052005a000300360057005200530003004c0051000300440003003600440049004800030033004f004400460048000300360048004800030032005a005100
48005500b60056000300300044005100580044004f00b40003[is shown,
this may be a malfunction. Immediately stop the vehicle in a safe place and
contact your Toyota dealer. Continuing to drive the vehicle may be danger-
ous.
●If “Engine Oil Pressure Low” is shown, this may be a malfunction. Immedi-
ately stop the vehicle in a safe place and contact your Toyota dealer.
●If the following messages are shown, there may be a malfunction. Immedi-
ately have the vehicle inspected by your Toyota dealer.
• “Plug-in charging system malfunction.”
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction See Owner’s Manual”
■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 your Toyota dealer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 691)
■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 your Toyota dealer.
When the message is shown, the hybrid system may not be started or the
shift position may not be changed normally. (Coping method: P. 691)
■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 your Toyota dealer.
When parking the vehicle, stop the vehicle on level ground and apply the
parking brake firmly.
■If “Shift System Malfunction Shifting Unavailable See Owner’s Manual”
is shown
Indicates a malfunction in the shift control system. Immediately have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be shifted from P to other than P.
■If “Shift System Malfunction Stop in a Safe Place See Owner’s Manual”
is shown
Indicates a malfunction in the shift control system. Immediately have the vehi-
cle inspected by your Toyota dealer.
The shift position may not be changed. Stop the vehicle in a safe place.

6898-2. Steps to take in an emergency
PRIUS PRIME_OM_OM47D71U_(U)
8
When trouble arises
■If “Shift to Before Exiting Vehicle” is shown
Message is displayed when the driver’s door is opened without turning the
power switch to off with the shift position in any position other than P.
Shift the shift position to P.
■If “Shift is in Release Accelerator Before Shifting” is shown
Message is displayed when the accelerator pedal has been depressed and
the shift position is in N.
Release the accelerator pedal and shift the shift position to D or R.
■If “Depress Brake When Vehicle is Stopped. Hybrid System may Over-
heat.” is shown
The message may be shown when the accelerator pedal is depressed to hold
the vehicle while the vehicle is stopped on an uphill, etc.
The hybrid system may overheat. Release the accelerator pedal and depress
the brake pedal.
■If “Shifted to Stop Vehicle to Shift to ” is shown
If the P position switch is pressed while driving, the shift position is changed
to N and the message is shown. (P. 347)
■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. 322)
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. 382, 674)
●PCS (Pre-Collision System)
●LTA (Lane Tracing Assist)
●AHB (Automatic High Beam)
●RSA (Road Sign Assist)
*
●Dynamic radar cruise control with full-speed range
*: If equipped

734
PRIUS PRIME_OM_OM47D71U_(U)
9-1. Specifications
■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: API SN/RC multigrade engine oil
Recommended viscosity: SAE 0W-16
SAE 0W-16 is the best choice
for good fuel economy and
good starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
with SAE 0W-16 at the next oil
change.
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.
Lubrication system
With filter4.4 qt. (4.2 L, 3.7 Imp.qt.)
Without filter4.1 qt. (3.9 L, 3.4 Imp.qt.)
Outside temperature

PRIUS PRIME_OM_OM47D71U_(U)
7639-2. Customization
9
Vehicle specifications
■Seat belt reminder (P. 679)
■Charge settings
■Maintenance system
■Vehicle customization
●When the Speed linked door locking function and the Shift position linked
door locking function are both on, the door lock operates as follows.
• When shifting the shift position to any position other than P, all the doors
will be locked.
• If the vehicle is started with all the doors locked, the Speed linked door
locking function would not operate.
• If the vehicle is started with any door unlocked, the Speed linked door
locking function will operate.
●When the smart key system is off, Smart door unlocking cannot be custom-
ized.
●When the doors remain closed after unlocking the doors and the automatic
door lock function is activated, the signals will be generated in accordance
with the operation signal (buzzer) and the operation signal (emergency
flashers) settings.
■In the following situations, customize mode in which the settings can be
changed through the multi-information display will automatically be
turned off.
●The power switch is turned off.
●The vehicle begins to move while the customize mode screen is displayed.
FunctionDefault
settingCustomized
setting
Vehicle speed linked seat belt
reminder buzzerOnOff––O
123
Charge scheduleSetting the charging schedule: P. 161
Charge currentChanging the upper limit of the charging cur-
rent:P. 132
Charging connector lock
(if equipped)Changing the charging connector lock settings:
P. 126
Traction battery heaterSetting “Traction Battery Heater” on/off:
P. 135
Oil Maintenance
(U.S.A. only)Resetting the message indicating maintenance
is required: P. 588
Tire pressure warning
systemInitializing the tire pressure warning system:
P. 615