2017 TOYOTA PRIUS V battery

4988-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
■SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front), side impact sensors (front door), side
impact sensors (rear), driver’s seat position sensor, driver’s seat belt buckle
switch, front passenger occupant cla ssification system (ECU and sensors),
“AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioner assemblies, airbags,
interconnecting wiring and power sources. ( P. 41)
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger detec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient of the voltage tempo-
rarily drops, the electric power steering system warning light may come on
and the warning buzzer may sound.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The malfunction indicator lamp will go off after several driving trips.
If the malfunction indicator lamp does not go off even after several trips, con-
tact your Toyota dealer as soon as possible.

5028-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
Carrying out the corresponding action turns the warning light off.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different sp ecifications or makers, as the tire
pressure warning system may not operate properly.
Other warning light
Warning lightWarning light/Details/Actions
(if equipped)
Go to service warning light
Indicates that maintenance of the hybrid battery (traction
battery) cooling component is required
The filter may be clogged, the air intake vent may be
blocked or there may be a gap in the duct.
 Have maintenance performed on the hybrid battery
(traction battery) cooling component at your Toyota
dealer.

5058-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
Once(Flashes in
yellow for 15 seconds)
Smart key system
warning light
Indicates that the elec-
tronic key battery is
low.
Replace the bat-
tery. (P. 464)
Once(Flashes in
yellow for 15 seconds)
Smart key system
warning light
Indicates a malfunc-
tion in the smart key
system.Have the vehicle
inspected by your
Toyota dealer
immediately.
Once(Flashes in
yellow for 30 seconds)
Smart key system
warning light
• When the doors were
unlocked with the
mechanical key and
then the power switch
was pressed, the elec-
tronic key could not be
detected in the vehicle.
• The electronic key could not be detected
in the vehicle even
after the power switch
was pressed two con-
secutive times.
Touch the elec-
tronic key to the
power switch
while depressing
the brake pedal.
InteriorbuzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure

5088-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
Indicates that the hybrid battery (traction battery)
power has dropped because a long period of time
has elapsed after shifting the shift position to NA buzzer also sounds.
 Restart the hybrid system when starting
the vehicle.
Indicates a malfunction in the shift control system
In this situation, there is a possibility that the
parking lock mechanism will not work. When
parking, park the vehicle on a flat surface and
apply the parking brake securely. Also, it may
not be possible to turn the power switch off. If
this happens, applying the parking brake will
enable the switch to be turned off. A buzzer
also sounds.
 Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the hybrid system
A buzzer also sounds.
 Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates that the hybrid battery (traction battery)
is low A buzzer also sounds.
 When stopping the vehicle for a long
period of time, shift the shift position to P.
The battery cannot be charged with the
shift position in N.
(If equipped)
Indicates that the radar cruise control sensor is
dirty or covered with ice
A buzzer also sounds.
 Clean the sensor.
Warning messageDetails/Actions
(Flashes)
(Flashes)

5118-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
Warning messageDetails/Actions
(If equipped)
The Automatic High Beam switch was pressed
with the low beam headlights turned on.
Turn the high beam headlights on before
pressing the Automatic High Beam switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability
Control) system was turned off, the pre-collision
brake system operation is stopped
Turn the VSC on. ( P. 251)
(If equipped)
Indicates that the pre-collision system is not cur-
rently functional
Check the grille cover and the sensor and
clean them if they are dirty.
Hybrid battery (traction battery) inspection or
replacement time.
Have the hybrid battery (traction battery)
inspected by your Toyota dealer immedi-
ately.
Hybrid system restarting will soon be disabled.
If you continue to use the vehicle in this
state, you will soon become unable to
restart the hybrid system. Have the hybrid
battery (traction battery) inspected by your
Toyota dealer immediately.
Indicates that restarting of the hybrid system is
not possible.
Contact your Toyota dealer immediately.
(Flashes)

5128-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
An attempt was made to change the shift position
when the 12-volt battery voltage was low. A buzzer also sounds.
 Maintain the hybrid system operation state
for approximately 15 minutes or more to
recharge the 12-volt battery.
 The hybrid system will not start: Start the
hybrid system by following the “If the
12-volt battery is discharged” procedure
(P. 541).
 The message appears frequently: The
12-volt battery may be deteriorating.
The 12-volt battery may be discharged if
this continues. Have the 12-volt battery
inspected at your Toyota dealer.
The shift lever and P position switch were repeat-
edly operated in quick succession.
A buzzer also sounds.
 Wait approximately 20 seconds and change
the shift position.
An attempt was made to change the shift position
to B when the shift position was P or N.
A buzzer also sounds.
 Change the shift position to D, and then
change the shift position to B.
An attempt was made to change the shift position
to R, D or B with the power switch on (READY
indicator turned off).
A buzzer also sounds.
 After starting the hybrid system, change
the shift position to R, D or B
*.
*: When changing the shift position to B, first
change the shift position to D, and then
change the shift position to B.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)

5148-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
Insufficient 12-volt battery charge The parking lock mechanism may not function.
The hybrid system may not be able to start.
The power switch may not be able to be turned
off. In this case, the power switch may be
turned off by applying the parking brake.
After charging the 12-volt battery, the message
may continue to be displayed until the shift
position is changed from P.
A buzzer also sounds.
 When parking, choose a level location and
apply the parking brake securely.
 Maintain the hybrid system operation state
for approximately 15 minutes or more to
recharge the 12-volt battery.
 The hybrid system will not start: Start the
hybrid system by following the “If the
12-volt battery is discharged” procedure
(P. 541).
 If the message does not disappear: The
12-volt battery may be deteriorating.
The 12-volt battery may be discharged if
this continues. Have the 12-volt battery
inspected at your Toyota dealer.
Shift control system malfunction
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer.
• The hybrid system may not be able to start.
• The parking lock mechanism may not func- tion. When parking, choose a level location
and apply the parking brake securely.
• The power switch may not be able to be turned off. In this case, the power switch
may be turned off by applying the parking
brake.
Shift control system malfunction A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately. If not inspected, vehi-
cle systems may stop operating normally.
Warning messageDetails/Actions

5168-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
Carrying out the corresponding action turns the messages off.
Other displayed messages
Displayed messageDetails/Actions
Maintenance of the hybrid battery (traction bat-
tery) cooling component is required
The filter may be clogged, the air intake vent
may be blocked or there may be a gap in the
duct.
 Have maintenance performed on the hybrid
battery (traction batt ery) cooling compo-
nent at your Toyota dealer.
Indicates that the EV drive mode is not available*
The reason the EV drive mode is not available
(the vehicle is idling, battery charge is low,
speed is higher than the EV drive mode operat-
ing speed range, accelerator pedal is
depressed too much) may be displayed.
A buzzer also sounds.
 Use the EV drive mode when it becomes
available.