2022 TOYOTA PRIUS PRIME ECO mode

144
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
■Capacity reduction of the hybr id battery (traction battery)
The capacity of the hybrid battery (traction battery) will decline gradually
when the hybrid battery (traction battery) is in use. The rate at which it
declines will differ in accordance with environmental condition s and the way
in which the vehicle is used. Observing the following can help suppress bat-
tery capacity decline.
● Avoid parking the vehicle in areas with a high temperature unde r direct sun-
light when the hybrid battery (traction battery) is fully charged.
● Avoid accelerating and decelerating frequently and suddenly when EV driv-
ing.
● Avoid frequent driving near the top speed for EV driving. ( P. 96)
● Leave a low level of charge in the hybrid battery (traction bat tery) when
leaving the vehicle undriven for a long period of time.
After confirming that EV mode has switched to HV mode, turn the power
switch off.
● Use the charging schedule function as much as possible in order to fully
charge the hybrid battery (traction battery) immediately before starting
off. ( P. 158)
Also, if the hybrid battery (traction battery) capacity reduces , the distance that
can be driven in EV mode decreases. However, vehicle performanc e does
not significantly become worse.
■ When the remaining charge of the hybrid battery (traction battery) is low
after charging
In the following situations, the remaining charge of the hybrid battery (traction
battery) after charging completes may be less than normal in or der to protect
the system (the EV driving range after the battery is fully charged may be
shorter).
*
● Charging is carried out when the outside temperature is low or high
● Charging is carried out immediately after high-load driving or in extreme
heat
When none of the above situations apply and there is a drastic drop in the
remaining charge of the hybrid battery (traction battery) after charging com-
pletes, have the vehicle inspected by your Toyota dealer.
*: When this occurs, even if the remaining charge display of the hybrid battery
(traction battery) shows that it is fully charged, the remainin g charge rapidly
decreases faster than normal.
■ When the charging amount sent to the hybrid battery (traction battery)
decreases
When the amount of power supplied by the charger is low or oper ation of the
“Traction Battery Heater”, etc., reduces the charging power sen t to the hybrid
battery (traction battery), the charging amount sent to the hyb rid battery (trac-
tion battery) may decrease.

152
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
Remove the plug from the out-
let when the charging equip-
ment will not be used for a
prolonged period of time.
Hold the body of the plug when
removing.
Make sure to put the cable away
immediately after disconnecting.
(P. 156)
When leaving the plug inserted, inspect the plug and connector once a
month to check if dirt or dust has accumulated.
■ Charging time
P. 135
■ Safety function
If the latch release button is pressed, charging will not begin even if the
charging cable is connected.
Also, charging will be stopped if the latch release button is pressed and held
for several seconds during charging. When restarting charging, reinsert the
charging connector after pulling it out, and check that the charging indicator
illuminates.
■ When the outside tempe rature is low or high
The level shown on the remaining charge display ( P. 231) may drop slightly
when the power switch is turned to ON mode, even if charging ha s been com-
pleted and the hybrid battery (traction battery) is fully charg ed. However, this
does not indicate a malfunction.
■ Charging time may increase
P. 136
■ While charging
When the power switch is turned to ON mode and the energy monitor dis-
plays, the charging connector is displayed on the energy monito r and the flow
of electricity during charging is displayed ( P. 223). Also, when the charging
connector is locked, is displayed.
*
*
: Vehicles with smart lid & connector locking system only
■ If the charging cable cannot be unlocked
P. 129
5

PRIUS PRIME_OM_OM47E74U_(U)
1832-2. Charging
2
Plug-in hybrid system*: Refer to P. 115 for details regarding charging indicator illumination and
flashing.
Refer to the following table and carry out the appropriate corr ection
procedure.
 Charging indicator flashes and charging cannot be carried out.
When charging indicator
flashes
*:
Charge schedule is regis-
tered
When you wish to charge according to the
charging schedule, wait until the set time.
To start charging, set “Charge Now” to “On”.
(  P. 167, 176)
When charging indicator rap-
idly flashes
*:
Malfunction occurred in an
external power source or the
vehicleStart the hybrid system and follow the
instructions displayed by the message on
the multi-information display. ( P. 186)
When charging schedule functi on does not operate normally
Likely causeCorrection procedure
Cannot charge at desired time
Vehicle clock is not properly
adjustedCheck the clock settings and adjust it to the
proper time. ( P. 197)
The vehicle calendar is not
set correctly.Check the calendar setting and set it to the
correct date. ( P. 199)
Charging cable is not con-
nected to vehicleBefore using the charging schedule, con-
nect the charging cable.
Incorrect charging mode
selected
Check the charging mode setting. ( P. 1 5 8 )
When the charging mode is “Start”, charging
starts at the set time, but when it is “Depar-
ture”, charging is completed by the set time.
(The charging start time is automatically
controlled by the system.)
 Cannot change charging schedule from smartphone application (vehi-
cles with 11.6-inch display)
*
Smartphone is outside its
coverage areaCheck the signal strength. If the smart-
phone is outside its coverage area, move to
a place with a better signal.
Likely causeCorrection procedure

184
PRIUS PRIME_OM_OM47E74U_(U)
2-2. Charging
Charging starts, even though charge schedule is registered
“Charge Now” is set to “On”
When charging according to the charging
schedule, set “Charge Now” to “Off”.
(P. 167, 176)
Charge schedule is set to
“Off”Check that charge schedule is not set to
“Off”. (P. 165, 175)
Charging mode is set to
“Departure” and schedule
departure time is close to
current timeWhen the system determines that there is
no time to finish charging by the set sched-
uled departure time, it starts charging.
Check the charge schedules.
Charging cable was
removed and reinserted
while charging indicator was
flashingIf the charging cable is removed and rein-
serted while the charging indicator is flashing,
the charging schedule is canceled ( P. 150).
Temporarily remove the charging cable, and
then reconnect it.
The Remote Air Conditioning
System was operated
When the Remote Air Conditioning System
is operated, the system will start charging,
even if the charge schedule is registered. To
carry out charging using the charging
schedule, stop the Remote Air Conditioning
System, and then reconnect the charging
cable.
“Traction Battery Heater”
(  P. 136) operated
When the charging mode is set to “Depar-
ture”, “Traction Battery Heater” may operate
before charging starts. Check the status of
the charging indicator. ( P. 115)
Outside temperature is low
and hybrid battery (traction
battery) warming control
( P. 137) operated
(Alaska and Canada only)When hybrid battery (traction battery)
warming control operates, the charging
schedule are ignored and charging starts. In
order to protect the hybrid battery (traction
battery), allow charging to continue.
Likely causeCorrection procedure

PRIUS PRIME_OM_OM47E74U_(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. 248)
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 charging
schedule function can not operate prop-
erly. When the calendar setting check
screen is displayed, make sure to com-
plete the calendar setting. ( P. 246)

PRIUS PRIME_OM_OM47E74U_(U)
2033. Instrument cluster
3
Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indi-
cate that a system check is being performed. They will turn off after the
hybrid system is on, or after a few seconds. There may be a malfunction in
a system if a light does not come on, or turn off. Have the veh icle
inspected by your Toyota dealer.
*2: The light flashes or illuminates to indicate a malfunction.
*3: The light flashes to indicate a malfunction.
*1High coolant temperature warning light P. 673
*1, 3PKSB OFF indicator (if equipped)P. 673
Open door warning light P. 673
Low fuel level warning lightP. 673
Driver’s and front passenger’s seat belt
reminder light P. 674
Rear passengers’ seat belt reminder light
(U.S.A.)P. 674
Rear passengers’ seat belt reminder light
(Canada)P. 674
*1Master warning light
P. 674
*1Tire pressure warning lightP. 674
Warning lightsPages

PRIUS PRIME_OM_OM47E74U_(U)
2053. Instrument cluster
3
Instrument cluster
*1: These lights turn on when the power switch is turned to ON mode to indi-
cate that a system check is being performed. They will turn off after the
hybrid system is on, or after a few seconds. There may be a malfunction in
a system if a light does not come on, or turn off. Have the veh icle
inspected by your Toyota dealer.
*2: The light flashes to indicate that the system is operating.
*3: The light comes on when the system is turned off.
*4: Depending on the operating condition, the color and illuminati ng/flashing
state of the light change.
Cruise control “SET” indicator P. 415
*1, 3PCS warning light P. 383
*4LTA indicatorP. 399
Steering control indicatorP. 399
Automatic High Beam indicator P. 352
Heated steering wheel indicator (if equipped) P. 536
“BSM” indicator (if equipped)P. 427
Intuitive parking assist indicator (if equipped) P. 441
*1, 3PKSB OFF indicator (if equipped)P. 453
*1S-APGS indicator (if equipped) P. 466
*1“AIR BAG ON/OFF” indicator (U.S.A.) P. 50
*1“AIR BAG ON/OFF” indicator (Canada)P. 50
IndicatorsPages

206
PRIUS PRIME_OM_OM47E74U_(U)
3. Instrument cluster
■Main display and multi-information display
*1: The displayed indicator changes according to the current plug-in hybrid
system operation mode.
*2: The displayed indicator changes according to the current drivi ng mode.
Indicators and symbols displayed on the display
IndicatorsPages
*1EV drive mode indicatorP. 90
*1EV auto mode indicator P. 90
*1Hybrid battery charge mode indicatorP. 91
*2“ECO MODE” indicatorP. 425
*2“PWR MODE” indicatorP. 425
EV indicator P. 227