2015 TOYOTA PRIUS PLUG-IN HYBRID battery

255
2-1. Driving procedures
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
■
Reverse warning buzzer
When shifting into R, a buzzer will sound to inform the driver that the shift
position is in R.
■ Automatically P position selection function
When the shift position is in a position other than P, pressing the “POWER”
switch with the vehicle stopped completely will cause the shift position to
change to P automatically, and then the “POWER” switch will turn off.
■ 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. 601)
■ 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 gaso-
line-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, shift the shift position to D.
■ When driving with cruise control or radar cruise control activated
Even if switching the driving mode to power mode with the intent of enabling
engine braking, engine braking will not activate because cruise control or
radar cruise control will not be canceled.

256 2-1. Driving procedures
PRIUS PHV_OM_OM47A11U_(U)
■When canceling Eco drive mode/power mode
●Press the switch again. Also, power mode will be canceled automatically
when the “POWER” switch is turned off. However, Eco drive mode will
not be canceled automatically until the switch is pressed, even if the
“POWER” switch is turned off.
● When in Eco drive mode, if the power mode switch is pressed or the
operation is reversed, the mode will switch to that of the last switch to be
pressed.
■ After charging/reconnecting the 12-volt battery
P. 478
■ Customization
Settings (e.g. Reverse warning buzzer) can be changed.
(Customizable features P. 647)

258 2-1. Driving procedures
PRIUS PHV_OM_OM47A11U_(U)
NOTICE
■Hybrid battery (tract ion 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.
■ Situations where shift control system malfunctions are possible
If any of the following situations occurs, shift control system malfunctions are
possible.
Immediately stop the vehicle in a safe place on level ground, apply the park-
ing brake, and then contact your Toyota dealer.
● When the “P LOCK MALFUNCTION” warning message appears on the
multi-information display. ( P. 552)
● When the shift position indicator remains off.
■ Notes regarding shift lever an d P position switch operation
Avoid repeatedly operating the shift lever and P position switch in quick suc-
cession.
The system protection function may activate and it will not be temporarily
possible to shift the shift position other than P. If this happens, please wait
for approximately 20 seconds before attempting to change the shift position
again.

273
2-2. Instrument cluster
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
Hybrid System Indicator
Hybrid System Indicator displays the hybrid system operating condi-
tion and provides Eco-friendly driving assistance in accordance with
the driving conditions and the acceleration.
■ Names and meaning of each icons
When EV Mode Hybrid battery (traction bat-
tery) status (P. 5 8 )
EV indicator
The EV indicator comes on when
the vehicle is driven using only
the electric motor (traction motor)
or the gasoline engine is stopped.
Eco Driving Indicator Light
Turns on when the vehicle is
driven in Eco-friendly.
When HV Mode Hybrid System Indicator
Refer to “Reading Hybrid System
Indicator” below.
Average speed*
Average fuel consumption*
Use the displayed average fuel
consumption as a reference.
*: The current amount since the trip
meter was reset will be displayed.
These functions can be reset by
pressing and holding the “TRIP”
button.
EV driving range ( P. 58)

287
2-2. Instrument cluster
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
■
System check display
■ Ending display
P. 247
■ Eco Driving Indicator Light
Eco Driving Indicator Light will turn on when driving power is lower than the
upper limit of Eco driving. It will turn off when the acceleration exceeds the
Eco driving accelerator upper limit or when the vehicle is stopped.
Eco Driving Indicator Light will not operate in the following conditions:
●The shift position is anything other than D.
● The driving mode is set to power mode. ( P. 251)
● The vehicle speed is approximately 80 mph (130 km/h) or higher.
Eco Driving Indicator Light is also displayed when 5-minute consumption, 1-
minute consumption or monthly fuel consumption record is displayed.
Eco Driving Indicator Light can be set to activated or deactivated. ( P. 282)
■ Hybrid System Indicator display when in EV mode
The movement of the bar in response to the operation of the accelerator
pedal may differ in accordance with the status of the hybrid battery (traction
battery). However, this does not indicate a malfunction.
After switching the “POWER” switch to
ON mode, “welcome to PRIUS” is dis-
played while system operation is
checked. When the system check is com-
plete, the normal screen will return.

288 2-2. Instrument cluster
PRIUS PHV_OM_OM47A11U_(U)
■Driving in Eco drive mode
The multi-information display will automatically switch the display to Hybrid
System Indicator, regardless of which display is currently being shown.
(P. 273)
■ Touch tracer display (if equipped)
●The touch tracer display can be set to not display even if the steering
switches are touched.
● Only the circular, rubber-covered switches have a built-in touch sensor.
Touching any of the other switches will not display the touch tracer dis-
play.
■ Display settings can be changed when
The vehicle speed is less than approximately 5 mph (8 km/h).
■ Engine speed
On hybrid vehicles, engine speed is precisely controlled in order to help
improve fuel efficiency and reduce exhaust emissions etc. There are times
when the engine speed that is displayed may differ even when vehicle oper-
ation and driving conditions are the same.
■ When the 12-volt battery is disconnected
The following data will be reset.
●Average fuel consumption
● Distance to empty
● Average vehicle speed
● EV driving ratio
● Clock
● Display settings
● Trip meter

295
2-2. Instrument cluster
PRIUS PHV_OM_OM47A11U_(U)
2
When driving
■
When driving on snowy roads or in other bright environments
When the highest level of brightness has been reached, the display can b\
e
made even brighter by pressing and holding “ ” on the brightness control
button.
Pressing “ ” on the brightness control button or turning the “POWER” switch
off will cause the brightness level to revert to the original level.
■ Display speed setting function
The speedometer can be set to display only when a desired vehicle speed is
reached.
Press and hold the “HUD” main switch while the vehicle is stopped
and while the head-up display is showing only the speedometer.
The speedometer will begin to flash.
Set the desired display speed on the speedometer by pressing “ ”
and “ ” on the display position adjustment button.
Press “ ” to raise the speed and “ ” to lower. The speed will change
by 1 mph (1.6 km/h) each time the button is pressed, and continu-
ously by 10 mph (16 km/h) when the button is pressed and held.
Press and hold the “HUD” main switch to finish setting.
■ Head-up display
The head-up display may seem dark and hard to see when viewed through
sunglasses, especially polarized sunglasses.
Adjust the brightness of the head-up display or remove your sunglasses.
■ When the 12-volt battery is disconnected
The head-up display settings will be reset.
STEP 1
STEP 2
STEP 3

302 2-3. Operating the lights and windshield wipers
PRIUS PHV_OM_OM47A11U_(U)
■Automatic headlight leveling system (if equipped)
The level of the headlights is automatically adjusted according to the number
of passengers and the loading condition of the vehicle to ensure that the
headlights do not interfere with other road users.
■ Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features P. 647)
NOTICE
■To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is
off.