engine TOYOTA PRIUS 2022 Owner's Manual

PRIUS_OM_OM47F01U_(U)
2274-1. Before driving
4
Driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When shifting the shift position
● Do not let the vehicle roll backward while a forward driving position is
selected, or roll forward while the shift position is in R.
Doing so may result in an accident or damage to the vehicle.
● Do not shift the shift position to P while the vehicle is movin g.
Doing so can damage the transmission and may result in a loss o f vehicle
control.
● Do not shift the shift position to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss o f vehicle
control.
● Do not shift the shift position to a driving position while the vehicle is mov-
ing backward.
Doing so can damage the transmission and may result in a loss of vehicle
control.
● Changing the shift position to N while the vehicle is moving will disengage
the hybrid system. Engine braking is not available with the hyb rid system
disengaged.
● Be careful not to change the shift position with the accelerato r pedal
depressed.
Changing the shift position to any position other than P or N may lead to
unexpected rapid acceleration of the vehicle that may cause an accident
and result in death or serious injury.
Also, when the shift position is in N, the shift position may not be able to be
changed to the intended shift position.
After changing the shift position, make sure to confirm the current shift
position displayed on the shift position indicator inside the meter.

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PRIUS_OM_OM47F01U_(U)
4-1. Before driving
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■If you hear a squealing or scraping noise (brake pad wear limit indica-
tors)
Have the brake pads checked and replaced by your Toyota dealer as soon
as possible.
Rotor damage may result if the pads are not replaced when neede d.
It is dangerous to drive the vehicle when the wear limits of the brake pads
and/or those of the brake discs are exceeded.
■ When the vehicle is stopped
● Do not depress the accelerator pedal unnecessarily.
If the shift position is in any position other than P or N, the vehicle may
accelerate suddenly and unexpectedly, causing an accident.
● In order to prevent accidents due to the vehicle rolling away, always keep
depressing the brake pedal while stopped with the “READY” indicator is
illuminated, and apply the parking brake as necessary.
● If the vehicle is stopped on an incline, in order to prevent ac cidents caused
by the vehicle rolling forward or backward, always depress the brake pedal
and securely apply the parking brake as needed.
● Avoid revving or racing the engine.
Running the engine at high speed while the vehicle is stopped may cause
the exhaust system to overheat, which could result in a fire if combustible
material is nearby.

232
PRIUS_OM_OM47F01U_(U)
4-1. Before driving
NOTICE
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. D oing 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 i s 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. In this case, transport the vehicle with both front wheels or all four
wheels lifted. ( P. 580)

239
PRIUS_OM_OM47F01U_(U)
4-2. Driving procedures
4
Driving
Power (ignition) switch
Check that the parking brake is set.
Firmly depress the brake pedal.
and a message will be dis-
played on the multi-information dis-
play.
When the shift position is N, the
hybrid system cannot start. Shift
the shift position to P when starting
the hybrid system. ( P. 2 5 0 )
Press the power switch shortly
and firmly.
When operating the power switch,
one short, firm press is enough. It
is not necessary to press and hold
the switch.
If the “READY” indicator turns on,
the hybrid system will operate nor-
mally.
Continue depressing the brake pedal until the “READY” indicator is illumi-
nated.
The hybrid system can be started from any power switch mode.
Check that the “R EADY” indicator is illuminated.
If the “READY” indicator changes from a flashing light to a sol id light and
the buzzer sounds, the hybrid system is starting normally.
The vehicle will not move when the “READY” indicator is off.
The vehicle can move when the “READY” indicator is on even if t he engine
is stopped. (The gasoline engine starts or stops automatically in accor-
dance with the state of the vehicle.)
Performing the following opera tions when carrying the elec-
tronic key on your person starts the hybrid system or changes
power switch modes.
Starting the hybrid system
1
2
3
4

246
PRIUS_OM_OM47F01U_(U)
4-2. Driving procedures
EV drive mode
Turns EV drive mode on/off
When EV drive mode is turned on,
the EV drive mode indicator will
come on.
Pressing the switch when in EV
drive mode will return the vehicle to
normal driving (using the gasoline
engine and electric motor [traction
motor]).
■Situations in which EV dri ve mode cannot be turned on
It may not be possible to turn EV drive mode on in the following situations. If it
cannot be turned on, a buzzer will sound and a message will be shown on the
multi-information display.
● The temperature of the hybrid system is high.
The vehicle has been left in the sun, driven on a hill, driven at high speeds,
etc.
● The temperature of the hybrid system is low.
The vehicle has been left in temperatures lower than about 32°F (0°C) for a
long period of time etc.
● The gasoline engine is warming up.
● The hybrid battery (traction battery) is low.
The remaining battery level indicated in the energy monitor dis play is low.
( P. 128, 167)
● Vehicle speed is high.
● The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
● The windshield defogger is in use.
In EV drive mode, electric power is supplied by the hybrid bat-
tery (traction battery), and only the electric motor (traction
motor) is used to drive the vehicle.
This mode allows you to drive in residential areas late at nigh t,
or in indoor parking lots etc. without concern for noises and
exhaust gas emissions.

PRIUS_OM_OM47F01U_(U)
2474-2. Driving procedures
4
Driving
■Switching to EV drive mode whe n the gasoline engine is cold
If the hybrid system is started while the gasoline engine is cold, the gasoline
engine will start automatically after a short period of time in order to warm up.
In this case, you will become unable to switch to EV drive mode .
After the hybrid system has started and the “READY” indicator h as illumi-
nated, press the EV drive mode switch before the gasoline engin e starts to
switch to EV drive mode.
■ Automatic cancelation of EV drive mode
When driving in EV drive mode, the gasoline engine may automati cally restart
in the following situations. When EV drive mode is canceled, a buzzer will
sound and the EV drive mode indicator will flash and go off.
● The hybrid battery (traction battery) becomes low.
The remaining battery level indicated in the energy monitor dis play is low.
( P. 128, 167)
● Vehicle speed is high.
● The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
When it is possible to inform the driver of automatic cancelation in advance, a
prior notice screen will appear on the multi-information displa y.
■ Possible driving distance when driving in EV drive mode
EV drive mode’s possible driving distance ranges from a few hun dred meters
to approximately 0.6 mile (1 km). However, depending on vehicle conditions,
there are situations when EV drive mode cannot be used. (The di stance that
is possible depends on the hybrid battery [traction battery] le vel and driving
conditions.)
■ Changing a driving mode when in EV drive mode
EV drive mode can be used in conjunction with Eco drive mode and power
mode.
However, EV drive mode may be automatically canceled when used in con-
junction with power mode.
■ Fuel economy
The hybrid system is designed to achieve the best possible fuel economy
during normal driving (using the gasoline engine and electric m otor [traction
motor]). Driving in EV drive mode more than necessary may lower fuel econ-
omy.

248
PRIUS_OM_OM47F01U_(U)
4-2. Driving procedures
WARNING
■Caution while driving
When driving in EV drive mode, pay special attention to the area around the
vehicle. Because there is no engine noise, pedestrians, people riding bicy-
cles or other people and vehicles in the area may not be aware of the vehi-
cle starting off or approaching them, so take extra care while driving.

250
PRIUS_OM_OM47F01U_(U)
4-2. Driving procedures
*: For good fuel economy and noise reduction, the D position should usually
be used.
 P. 3 4 2
■When shifting the shift position to P
Fully stop the vehicle and set
the parking brake, and then
press the P position switch.
When the shift position is
changed to P, the switch indica-
tor comes on.
Check that the P position is
highlighted on the shift position
indicator.
■
Shifting the shift position from P to other positions
● While depressing the brake pedal f irmly, operate the shift lever. I f
the shift lever is operated withou t depressing the brake pedal, the
buzzer will sound and the shifting operation will be disabled.
● When selecting the shift position, make sure that the shift pos i-
tion has been changed to the desired position by checking the
shift position indica tor provided on the in strument cluster.
● The shift position cannot be changed from P to B directly.
Shift position purpose
Shift positionObjective or function
PParking the vehicle/starting the hybrid system
RReversing
NNeutral
(Condition in which the power is not transmitted)
DNormal driving*
B
Applying engine braking or strong braking when the
accelerator pedal has been released on steep down-
ward slopes etc.
Selecting a driving mode
P position switch

252
PRIUS_OM_OM47F01U_(U)
4-2. Driving procedures
■Restraining sudden start (Drive-Start Control)
P. 224
■ Automatic P position selection function
In the following situations, the shift position is automaticall y changed to P.
● When pressing the power switch with the vehicle stopped while the power
switch is in ON mode and the shift position is in a position other than P (after
the shift position has changed to P, the power switch will turn off)
*
●If the driver’s door is opened and all of the following conditi ons are met,
while the shift position is in a position other than P
• The power switch is in ON mode.
• The driver is not wearing the seat belt.
• The brake pedal is not depressed.
To start off the vehicle after the shift position is changed to P, operate the
shift lever again.
*: When the power switch is pressed while driving at extremely slow speeds,
such as immediately before stopping the vehicle, the shift posi tion may
automatically change to P. Make sure that the vehicle is completely stopped
before pressing the power switch.
The shift position may also automatically switch to P if one of the following
conditions is detected while the vehicle is stopped by dynamic radar cruise
control with full-speed range (if equipped).
● Driver’s seat belt is not fastened
● Driver’s door is opened
● Approximately 3 minutes elapse after the vehicle stopped
■ If the shift position cannot be shifted from P
There is a possibility that the 12-volt battery is discharged. Check the 12-volt
battery in this situation. ( P. 646)
■ About engine braking
When shift position B is selected, releasing the accelerator pe dal will apply
engine braking.
● When the vehicle is driven at high speeds, compared to ordinary gasoline-
fueled vehicles, the engine braking deceleration is felt less t han that of other
vehicles.
● The vehicle can be accelerated even when shift position B is se lected.
If the vehicle is driven continuously in the B position, fuel e fficiency will
become low. Usually, select the D position.
■ After recharging/reconnecting the 12-volt battery
P. 521

PRIUS_OM_OM47F01U_(U)
2534-2. Driving procedures
4
Driving
■When a message related to shift op erations is displayed on the multi-
information display
When the shift position does not switch due to a mistaken opera tion, system
conditions, etc., or when the attempted shift operation is invalid, a message
indicating the correct operation or the reason why switching cannot be per-
formed is shown on the multi-information display. In these cases, follow the
instructions and retry the operation.
■ Customization
Settings (e.g. reverse warning buzzer) can be changed.
(Customizable features: P. 686)
WARNING
■When driving on slippery road surfaces
Do not accelerate or shift the shift position suddenly.
Sudden changes in engine braking may cause the vehicle to spin or skid,
resulting in an accident.
■ Shift lever and P position switch
● Do not remove the shift lever knob or use anything but a genuine Toyota
shift lever knob. Also, do not hang anything on the shift lever .
Doing so could prevent the shift lever from returning to position, causing
unexpected accidents to occur when the vehicle is in motion.
● Do not press the P position switch while the vehicle is moving.
If the P position switch is pressed when driving at very low speeds (for
example, just before the vehicle stops), the vehicle may stop suddenly
when the shift position switches to P, which could lead to an accident.
● In order to prevent the shift position from accidentally being changed, do
not touch the P position switch or shift lever when not using them.