2018 TOYOTA PRIUS PRIME engine

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PRIUS PRIME_QG_OM47C25U_(U)
3. Basic operation
■Starting the hybrid system
Check that the charging cable is disconnected.
Check that the parking brake is set.
Firmly depress the brake
pedal.
and a message will be
displayed on the multi-informa-
tion display.
When the shift position is N, the
hybrid system cannot start. Shift
the shift position to P when start-
ing the hybrid system.
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 oper-
ate normally.
Continue depressing the brake pedal until the “READY” indicator is illu-
minated.
The hybrid system can be started from any power switch mode.
Check that the “READY” indicator is illuminated.
If the “READY” indicator changes from a flashing light to a solid 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 the
engine is stopped. (The gasoline engine starts or stops automatically in
accordance with the state of the vehicle.)
How to operate the power (ignition) switch
1
2
3
4
5

PRIUS PRIME_QG_OM47C25U_(U)
313. Basic operation
3
Basic operation
Shift the shift position to P.
Check that the P position is
highlighted on the shift posi-
tion indicator, and release the
brake pedal gently after
applying the parking brake.
■About engine braking
When shift position B is selected, releasing the accelerator pedal 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 than that of other
vehicles.
●The vehicle can be accelerated even when shift position B is selected.
If the vehicle is driven continuously in the B position, fuel efficiency will
become low. Usually, select the D position.
2
NOTICE
■Hybrid battery (traction battery) charge
If the shift position is in N, the hybrid battery (traction battery) will not be
charged. To help prevent the battery from discharging, avoid leaving the N
position selected for an extended period of time.

38
PRIUS PRIME_QG_OM47C25U_(U)
4. Things you must know
Things you must know
■Regenerative braking
In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the recharging of the
hybrid battery (traction battery).
●The accelerator pedal is released while driving with the shift position in D or
B.
●The brake pedal is depressed while driving with the shift position in D or B.
■Gasoline engine operation in EV/EV auto mode
Even if there is a sufficient amount of electricity remaining in the hybrid bat-
tery (traction battery) and EV driving range is being displayed on the multi-
information display etc., EV driving (driving using only the electric motor) may
be canceled and both gasoline engine and electric motor are used depending
on the situation (EV driving will be returned to automatically after EV driving
becomes possible again).
EV driving may be canceled automatically in the following circumstances:
●When vehicle speed is more than approximately 84 mph (135 km/h).
●When power is needed temporarily, for example when the accelerator pedal
is depressed firmly or when accelerating suddenly.
*
●When 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.
●When the temperature of the hybrid system is low.
●When the heater is switched on when the outside temperature is below
about 14°F (-10°C).
●When the windshield defogger switch is pressed.
●<003a004b0048005100030057004b004800030056005c00560057004800500003004700480057004800550050004c00510048005600030057004b0044005700030057004b00480003004a004400560052004f004c00510048000300480051004a004c005100
48000300510048004800470056000300570052000300450048[ started.
The gasoline engine may also operate in circumstances other than those
listed above, depending on conditions.
*: When traveling in the EV auto mode only
■Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions
*:
●During gasoline engine warm-up
●During hybrid battery (traction battery) charging
●When the temperature of the hybrid battery (traction battery) is high or low
●When the windshield defogger switch is pressed.
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.

PRIUS PRIME_QG_OM47C25U_(U)
394. Things you must know
4
Things you must know
WARNING
■While driving
Because there is no engine noise when the vehicle is being driven using the
electric motor, pedestrians in the vicinity may not notice the vehicle. Even
though the vehicle is equipped with the vehicle proximity notification sys-
tem, drive with care as pedestrians in the vicinity may still not notice the
vehicle if the surrounding area is noisy.
NOTICE
■Hybrid battery (traction battery) air intake vents
●Make sure not to block the air intake vent with anything, such as a seat
cover, plastic cover, or luggage. The hybrid battery (traction battery) may
overheat and be damaged.
●When dust etc. has accumulated in the air intake vent, clean it with a vac-
uum cleaner to prevent the vent from clogging.
●Do not wet or allow foreign substances to enter the air vents as this may
<004600440058005600480003004400030056004b00520055005700030046004c005500460058004c0057000300440051004700030047004400500044004a004800030057004b00480003004b005c00450055004c0047000300450044005700570048005500
5c0003000b00570055004400460057004c0052005100030045[attery).
●Do not carry large amounts of water such as water cooler bottles in the
vehicle. If water spills onto the hybrid battery (traction battery), the battery
may be damaged. Have the vehicle inspected by your Toyota dealer.
●A filter is installed to the air intake vent. When the filter remains noticeably
dirty even after cleaning the air intake vent, filter cleaning or replacement
is recommended. When cleaning the filter, refer to “OWNER’S MANUAL”.
There are air intake vents on both sides
of the rear seatback for the purpose of
cooling the hybrid battery (traction bat-
tery). If the vents become blocked, the
hybrid battery (traction battery) may over-
heat, leading to a reduction in hybrid bat-
tery (traction battery) output.

40
PRIUS PRIME_QG_OM47C25U_(U)
4. Things you must know
NOTICE
■Charging equipment cooling air intake vents
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03005200550003004f0058004a004a0044004a0048[
●If the air intake vents are clogged with dust, clean them with a vacuum
cleaner
●Do not allow water or foreign matter to enter the air intake vents
●<002700520003005100520057000300560053004c004f004f0003004f00440055004a0048000300440050005200580051005700560003005200490003005a00440057004800550003005100480044005500030057004b004800030044004c00550003004c00
5100570044004e0048000300590048005100570056[
If water is spilled, have the vehicle inspected by your Toyota dealer and do
not charge the hybrid battery (traction battery) before the inspection.
■Notice about fuel
●For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo changes in quality depending on the how the vehicle is used.
Refuel at least 5.3 gal.(20 L, 4.4 Imp.gal.) of fuel every 12 months (refuel a
total of at least 5.3 gal. [20 L, 4.4 Imp.gal.] over a 12-month period), as this
may affect components of the fuel system or the gasoline engine.
●If the vehicle has not been refueled for a certain amount of time and it is
possible that the quality of the fuel remaining in the tank has changed, “No
new fuel has been added recently. Please refuel” is displayed on the multi-
information display when the power switch is turned to ON mode. If the
message is displayed, refuel the vehicle immediately.
The grilles under the rear seats are the
cooling air intake vents for the charging
equipment installed under the seats.
Make sure to observe the following pre-
cautions regarding the cooling air intake
vents. Failure to observe these precau-
tions may result in a charging system
malfunction.