2017 TOYOTA PRIUS battery low

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PRIUS_OM_OM47B54U_(U)
2. Instrument cluster
■The meters and display illuminate when
The power switch is in ON mode.
■ Adjusting the instrument cluster brightness (→P. 94)
● 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 screen. 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 selected, when the
tail lights are turned on in a dark place, the instrument cluster brightness
setting will be the selected level.
● If the taillights are illuminated in a dark environment, the instrument cluster
light dims. However, when the brightness of the instrument cluster is set to
minimum or maximum (1st or 22nd level of the instrument cluster bright-
ness), even if the taillights are illuminated, the instrument cluster light will
not dim.
■ When disconnecting and reconnect ing 12-volt battery terminals
The settings of the clock will be reset.
■ Calendar settings
●Until the calendar settings are set, the check screen is displayed 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. 142)
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 settings check
screen is automatically displayed on the
multi-information display.
● If date information is not set, the fuel
consumption record cannot be stored
correctly. When the calendar settings
check screen is displayed, make sure to
always set the settings. ( →P. 139)

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PRIUS_OM_OM47B54U_(U)
2. Instrument cluster
■Switching contents displayed on the sub-screenPress or of the
meter control switches and
select the sub-screen.
When the sub-screen is selected,
is displayed on the sub-
screen.
Press or of the meter control switches to select the dis-
play item.
One of the following 3 items can be displayed.
1
2
Display contentsDetail
Hybrid System Indicator A convenient Hybrid System Indicator is displayed.
Refer to P. 119 for details on how to read the Hybrid
System Indicator.
Current fuel consumption
The current fuel consumption during driving is dis-
played.
• The mark indicates the value displayed in theaverage fuel consumption display ( →P. 109).
Switching the average fuel consumption display
also changes the position of the mark.
• When the average fuel consumption is reset, the
position of the mark is reset to 0.
Hybrid battery (traction battery) status The same contents as the hybrid battery (traction
battery) status on the energy monitor are displayed.
(→P. 118)

PRIUS_OM_OM47B54U_(U)
1172. Instrument cluster
2
Instrument cluster
◆Energy monitor
The energy monitor can be used to check the vehicle drive status,
hybrid system operation status and energy regeneration status.
When energy is flowing, an arrow appears and a bright point of light
moves to show the direction of the flow of energy. When energy is
not flowing, the bright point of light are not displayed.
Gasoline engine
Electric motor
(traction motor)
Hybrid battery
(traction battery)
Tire
Bright point of light showing
the flow of energy
As an example, all arrows are shown in the illustration, but the actual con-
tents of the display will differ.
(Display example)
●When the hybrid battery (traction battery) is being charged, the
bright point of light moves towards .
● During driving, the bright point of light moves from or (or
both depending on the situation) towards .
*
●During driving, the image of the tires rotates.
*: The display may differ depending on the driving status.
1
2
3
4
5
3
12
4

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PRIUS_OM_OM47B54U_(U)
2. Instrument cluster
■Hybrid battery (tract ion battery) status
● The display changes in 8 levels according to the remaining charge amount
of the hybrid battery (traction battery).
● The hybrid battery (traction battery) status is also displayed on the following
screen, but the contents of the display are the same.
• Sub-screen of the main display ( →P. 112)
• Hybrid System Indicator ( →P. 11 9 )
• Head-up display (if equipped) ( →P. 146)
● The charge amount of the hybrid battery (traction battery) is automatically
controlled by the hybrid system. For this reason, even if electricity is recov-
ered via the regenerative braking, or electricity is generated via the gasoline
engine, the displayed hybrid battery (traction battery) charge amount may
not reach the highest level (level 8). However, this does not indicate a mal-
function.
■ Remaining charge amount warning of hybrid battery (traction battery)
●While driving, when the remaining charge amount of the hybrid battery (trac-
tion battery) drops below a fixed amount, the buzzer sounds intermittently. If
the remaining charge amount drops further, the buzzer sounds continuously.
● When a warning message is shown on the multi-information display and the
buzzer sounds, follow the instructions displayed on the screen to perform
troubleshooting.Low
High
1
2

PRIUS_OM_OM47B54U_(U)
1552. Instrument cluster
2
Instrument cluster
These images are examples only, and may vary slightly from actual
conditions.
When the vehicle is charging
the hybrid battery (traction bat-
tery)
When there is no energy flow
Hybrid battery (traction battery)
status
Audio system screen
Low Full

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3-1. Key information
■Electronic key battery depletion
●The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin and a message
will be displayed on the multi-information display when the hybrid system
stops.
● As the electronic key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate that the electronic key battery may be depleted. Replace the battery
when necessary. ( →P. 627)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
You can replace the battery by yourself ( →P. 627). However, as there is a
danger that the electronic key may be damaged, it is recommended that
replacement is carried out by your Toyota dealer.
● To avoid serious deterioration, do not leave the electronic key within 3 ft.
(1 m) of the following electrical appliances that produce a magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers

PRIUS_OM_OM47B54U_(U)
1633-1. Key information
3
Operation of each component
■If a message regarding the state of the electronic key or power switch
mode, etc. is shown
To prevent trapping the electronic key inside the vehicle, leaving the vehicle
without turning off the power switch or other passengers from unintentionally
taking the key out of the vehicle, etc., a message that prompts the user to
confirm the state of the electronic key or power switch mode may be shown
on the multi-information display. In those cases, follow the instructions on the
display immediately.
■ If “Key Battery Low Replace Key Battery” is displayed on the multi-infor-
mation display
The electronic key has a low battery. Replace the electronic key battery.
(→P. 627)
■ Replacing the battery
→P. 627
■ Confirmation of the registered key number
The number of keys already registered to the vehicle can be confirmed. Ask
your Toyota dealer.
■ If “A New Key has been Registered Contact Your Dealer for Details” is
displayed on the mult i-information display
This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately 10 days after a
new electronic key has been registered.
If this message is displayed but you have not had a new electronic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.
■ If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.

PRIUS_OM_OM47B54U_(U)
1773-2. Opening, closing and locking the doors
3
Operation of each component
■Alarms and warning messages
An alarm sounds and warning message displays shown on the multi-informa-
tion display are used to protect against unexpected accidents or theft of the
vehicle resulting from erroneous operation. When a warning message is dis-
played, take appropriate measures based on the displayed message.
When only an alarm sounds, circumstances and correction procedures are as
follows.
■ When “Smart Key System malfunct ion See owner’s manual” is dis-
played on the multi-information display
The system may be malfunctioning. Have the vehicle inspected by your
Toyota dealer immediately.
■ Battery-saving function
The battery-saving function will be activated in order to prevent the electronic
key battery and the 12-volt battery from being discharged while the vehicle is
not in operation for a long time.
●In the following situations, the smart key system may take some time to
unlock the doors.
• The electronic key has been left in an area of approximately 6 ft. (2 m) of
the outside of the vehicle for 10 minutes or longer.
• The smart key system has not been used for 5 days or longer.
● If the smart key system has not been used for 14 days or longer, the doors
cannot be unlocked at any doors except the driver’s door. In this case, take
hold of the driver’s door handle, or use the wireless remote control or the
mechanical key, to unlock the doors.
AlarmSituationCorrection procedure
Exterior alarm
sounds once for 5
secondsAn attempt was made to
lock the vehicle while a door
was open.Close all of the doors
and lock the doors
again.
Interior alarm
pings repeatedly
The power switch was
turned to ACCESSORY
mode while the driver’s door
was open (The driver’s door
was opened when the
power switch was in
ACCESSORY mode).
Turn the power switch
off and close the
driver’s door.