fuel consumption TOYOTA PRIUS PRIME 2020 Owners Manual (in English)

PRIUS PRIME_OM_OM47C77U_(U)
892-1. Plug-in hybrid system
2
Plug-in hybrid system
Hybrid battery (traction battery) charge mode ( P. 91)
Electricity generated in the gas oline engine can be charged in the
hybrid battery (traction battery) by switching to the hybrid battery
(traction battery) charge mode wh en electricity needed for EV driv-
ing is not remaining.
*
● The system may not be able to switch to the hybrid battery (tra c-
tion battery) charge mode due to the state of the plug-in hybri d
system. ( P. 9 1 )
● Charging time differs depending on the driving state of the vehi-
cle when driving in hybrid batte ry (traction battery) charge mode.
When in the hybrid battery (traction battery) charge mode, the hybrid
battery charge mode indicator illuminates.
*: When in the hybrid battery (traction battery) charge mode, the hybrid
battery can be charged while driving. However, the gasoline eng ine runs
to charge the battery and fuel consumption becomes higher compa red
with driving in HV mode.
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PRIUS PRIME_OM_OM47C77U_(U)
932-1. Plug-in hybrid system
2
Plug-in hybrid system
■When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (trac-
tion battery).
The EV driving range can be ext ended by actively using this regen-
erative braking to store electricity in the hybrid battery (tra ction bat-
tery).
Moreover, as fuel consumption is also reduced when in HV mode,
the regenerative braking system can be used effectively.
In order to make EV/EV auto
mode available, charge the hybrid
battery (traction battery) from an
external power source before
using the vehicle.
Even if charging the hybrid battery
(traction battery) has not been
completed, the vehicle can be
driven. However, if there is not
enough charge remaining, it is pos-
sible that the vehicle cannot be
driven in EV/EV auto mode or the
EV driving range will become
shorter.
When driving with the gasolin e engine stopped, a sound, which
changes in accordance with the driving speed, will be played in order
to warn people nearby of the vehicle’s approach. The sound will stop
when the vehicle speed exceeds approximately 15 mph (25 km/h).
Charging (P. 1 1 0 )
Vehicle proximity notification system

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PRIUS PRIME_OM_OM47C77U_(U)
2-1. Plug-in hybrid system
2
Plug-in hybrid system
Plug-in hybrid vehicle driving tips
◆Using EV mode and HV mode effectively
Primarily using EV mode when driving in cities and using HV mod e
when driving on highways (or freeways) can help conserve fuel a nd
electricity. ( P. 9 0 )
◆Using Eco drive mode
When using Eco drive mode, the torque corresponding to the acce l-
erator pedal depression amount can be generated more smoothly
than it is in normal conditions. In addition, the operation of the air
conditioning system (heating/coo ling) will be minimized, improving
fuel and electricity economy. ( P. 419)
◆Use of Hybrid System Indicator
Eco-friendly driving is possible by keeping the Hybrid System I ndi-
cator within Eco area. ( P. 223)
◆Shift position operation
Shift the shift position to D when stopped at a traffic light, or driving
in heavy traffic etc. Shift the shift position to P when parkin g. When
using the N, there is no positiv e effect on fuel consumption. In the
N, the gasoline engine operates but electricity cannot be gener -
ated. Also, when using the air conditioning system, etc., the h ybrid
battery (traction batt ery) power is consumed.
For economical and ecological dri ving, pay attention to the fol-
lowing points:

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PRIUS PRIME_OM_OM47C77U_(U)
2-1. Plug-in hybrid system
◆Accelerator pedal/brake pedal operation
●Drive your vehicle smoothly. Avoid abrupt acceleration and
deceleration. Gradual accelerat ion and deceleration will make
more effective use of the electric motor (traction motor) witho ut
having to use gaso line engine power.
● Avoid repeated acceleration. Repeated acceleration consumes
hybrid battery (tracti on battery) power, resulting in poor fuel con-
sumption. Battery power can be restored by driving with the
accelerator pedal slightly released.
◆When braking
Make sure to operate the brakes gently and a timely manner. A
greater amount of electrical energy can be regenerated when slow-
ing down.
◆Delays
Repeated acceleration and deceleration, as well as long waits a t
traffic lights, will lead to high fuel and electricity consumption.
Check traffic reports before leav ing and avoid delays as much a s
possible. When driving in a traffic jam, gently release the brake
pedal to allow the vehicle to mov e forward slightly while avoiding
overuse of the accelerator pedal. Doing so can help control exces-
sive electricity and fuel consumption.
◆Highway driving
● Control and maintain the vehicle at a constant speed. Before
stopping at a toll booth or similar, allow plenty of time to re lease
the accelerator and gently apply the brakes. A greater amount o f
electrical energy can be regenerated when slowing down.
● Electricity consumption will in crease significantly when drivin g at
high speeds in EV mode. If there will be a long distance to the
next external charging point after leaving a freeway, it is rec om-
mended to drive in HV mode while on the freeway and change to
EV mode after leaving the freeway.

PRIUS PRIME_OM_OM47C77U_(U)
1072-1. Plug-in hybrid system
2
Plug-in hybrid system
◆Air conditioning
●Turn the “A/C” switch (
*1 • *2) off when it is
not needed. Doing so can help reduce excessive electricity and
fuel consumption.
In summer: When the ambient temperature is high, use the recir-
culated air mode. Doing so will help to reduce the burden on th e
air conditioning system and reduc e electricity and fuel consump-
tion as well.
In winter: Avoid excessive and unnecessary use of the heater.
Usage of the heated steering w heel (if equipped) and seat heat-
ers is effective. ( P. 5 2 6 )
● Using the Remote Air Conditioning System ( P. 522) while the
charging cable is connected to the vehicle can reduce electrici ty
consumption immediately after st arting off by operating air condi-
tioning mainly using electricity from an external power source.
● When setting the timer, selecting the start time setting mode a nd
setting “Climate Prep” to “On” c an reduce electricity consumption
immediately after starting off by operating air conditioning be fore
charging is completed. ( P. 157)
*1: Vehicles with 7-inch display
*2: Vehicles with 11.6-inch display
◆Checking tire inflation pressure
Make sure to check the tire inflation pressure frequently. If t here is
improper tire inflation pressur e in the tires, the EV driving range will
become shorter, and fuel consumption when in HV mode will
increase.
Also, as snow tires can cause large amounts of friction, their use on
dry roads can lead t o increased fuel and electricity consumptio n.
◆Luggage
Carrying heavy luggage will lead to poor fuel economy. Avoid carry-
ing unnecessary luggage. Installing a large roof rack will also cause
poor fuel economy.
◆Warming up before driving
Since the gasoline engine starts up and cuts out automatically,
warming up is not necessary.

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PRIUS PRIME_OM_OM47C77U_(U)
3. Instrument cluster
Combination meter
The units used on the display may differ depending on the target region.
Main display (P. 209)
The main display shows basic information related to driving, su ch as the
vehicle speed and remaining fuel amount.
Multi-information display ( P. 218)
The multi-information display shows information which makes the vehicle
convenient-to-use, such as the hybrid system operation condition, electric-
ity consumption and fuel consumption history. Also, the operati on contents
of the driving support systems and the combination meter display settings
can be changed by switching to the settings screen.
Warning lights and indicators ( P. 2 0 1 )
The warning lights and indicators comes on or flashes to indicate problems
with the vehicle or to show the operation status of the vehicle ’s systems.
Clock (P. 197)
The large meter uses 2 liquid crystal displays to display infor ma-
tion such as the vehicle condition , driving status, electricity con-
sumption and fuel consumption.
Combination meter layout
1
2
3
4

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PRIUS PRIME_OM_OM47C77U_(U)
3. Instrument cluster
■When stopping the hybrid system
●When the hybrid system is stopped, the “Ending” screen is dis-
played on the multi-information display (for approximately 30
seconds
*1).
While the “Ending” screen is displayed, the following informati on
can be displayed by pressing , , or of the meter
control switches.
Score for each Ec o score items (P. 227, 241)
Eco score result and advice
Driving time since the hybrid system started
Distance traveled since th e hybrid system started
Average fuel consumption after the hybrid system started
Information for nex t charge schedule
*2
On/off setting for “Charge Now” ( P. 1 6 6 )
The setting can be switched each time is pressed.
*1: The screen will be turned off immediately if the doors are loc ked.
*2: It can be displayed when the charge schedules are registered.
(P. 157)
● A check screen for “Traction Battery Cooler” may be displayed
when the hybrid system is stopped. ( P. 1 3 6 )
1
2
3
4
5
6
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PRIUS PRIME_OM_OM47C77U_(U)
1993. Instrument cluster
3
Instrument cluster
■The meters and display illuminate when
The power switch is in ON mode.
■ Adjusting the instrume nt cluster brightness (P. 194)
● The brightness levels that can be selected differ depending on whether the
tail lights are on and surrounding brightness levels, as shown in the table
below.
*: 22 levels of the brightness are displayed on the setting scree n. However,
the brightness setting will be the brightest when other than 1st level (the
darkest) is selected. If other than 1st or 22nd level is select ed, when the
tail lights are turned on in a dark place, the instrument clust er brightness
setting will be the selected level.
● If the taillights are illuminated in a dark environment, the in strument cluster
light dims. However, when the brightness of the instrument clus ter is set to
minimum or maximum (1st or 22nd level of the instrument cluster bright-
ness), even if the taillights are illuminated, the instrument c luster light will
not dim.
■ When disconnecting and reconnecting 12-volt battery terminals
The settings of the clock will be reset.
■ Calendar setting
●Until the calendar setting is completed, the check screen is di splayed every
time the power switch is turned to ON mode.
● After the calendar information is set, it can be changed in the “Meter Cus-
tomize” settings. ( P. 246)
The tail lights are offThe tail lights are on
In a bright place2 levels*2 levels*
In a dark place22 levels
If calendar recording is interrupted due to
replacement of the 12-volt battery or 12-
volt battery discharge, etc., when the
power switch is turned to ON mode after
maintenance, the calendar setting check
screen is automatically displayed on the
multi-information display.
● If date information is not set, the electric-
ity and fuel consumption record cannot
be stored correctly. Also, the charge
timer function can not operate properly.
When the calendar setting check screen
is displayed, make sure to complete the
calendar setting. ( P. 244)

210
PRIUS PRIME_OM_OM47C77U_(U)
3. Instrument cluster
Speedometer
Displays the vehicle speed
Fuel gauge
Displays the quantity of fuel remaining in the tank
Outside temperature
Displays the outside temperature within the range of -40°F (-40°C) to
122°F (50°C).
The temperature display flashes for approximately 10 seconds wh en the
outside temperature drops to approximately 37 F (3 C) or less, and then
stops flashing.
Mileage display (odometer/tr ip meters/driving range)
The possible driving range estimated from the mileage and current remain-
ing fuel amount can be displayed. ( P. 211)
Average fuel consumption display
The average electricity and fuel consumption that is linked wit h the con-
tents of the mileage display can be displayed. ( P. 2 1 1 )
Sub-screen
When split screen is selected for the main display, information such as the
Hybrid System Indicator and current fuel consumption can be dis played.
( P. 213)
1
2
3
4
5
6

PRIUS PRIME_OM_OM47C77U_(U)
2113. Instrument cluster
3
Instrument cluster
Each time is pressed, the mileage display and fuel consumption
display change in the following order from 1 to 7.
Mileage display
Average fuel consumption dis-
play
After 1 to 7 are displayed, the dis-
plays return to 1.
Use the displayed average fuel
consumption as a reference.
Switching the mileage display and average fuel consumption
display
1
2