Page 497 of 607

4958-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
8
When trouble arises
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.
An attempt was made to change the shift position
from P with the brake pedal released. A buzzer also sounds.
When changing the shift position from P,
depress the brake pedal.
An attempt was made to change the shift position
to B when the shift position was R.
A buzzer also sounds.
The shift position automatically changed to N.
Change the shift position to D, and then
change the shift position to B.
An attempt was made to change the shift position
to D while the vehicle was driven in reverse.
A buzzer also sounds.
The shift position automatically changed to N.
Stop the vehicle, and then change the shift
position.
An attempt was made to change the shift position
to R while the vehicle was moving forward.
A buzzer also sounds.
The shift position automatically changed to N.
Stop the vehicle, and then change the shift
position.
Warning messageDetails/Actions
(Flashes)
(Flashes)
(Flashes)
(Flashes)
(Flashes)
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4968-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
Indicates that the P position switch is pressed
while the vehicle is running.A buzzer also sounds.
The shift position automatically changed to N.
To shift the shift position to P, stop the
vehicle completely and press the P posi-
tion switch.
To continue driving, shift the shift position
to D or R.
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. 523).
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.
Warning messageDetails/Actions
(Flashes)
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4978-2. Steps to take in an emergency
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When trouble arises
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.
Shift control system communication malfunction
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
• The hybrid system may not be able to start.
• May not be switched to the P position. When parking, choose a level location and
apply the parking brake securely.
• The automatically P position selection func- tion ( P. 178) may not function. Before
turning the power switch off, securely press
the P position switch, and be sure to check
that the shift position is in P by verifying the
shift position or P position switch operation
indicator lights.
• 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.
(If equipped)
Indicates a malfunction in the LED headlight sys-
temA buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
Warning messageDetails/Actions
(Turns on or
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4988-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(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 requiredThe 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 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.
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4998-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
8
When trouble arises
*: For the EV drive mode operating conditions (P. 173).
Indicates that the EV drive mode has been auto-
matically canceled
*
The reason the EV drive mode is not available
(the battery charge is low, speed is higher than
the EV drive mode operating speed range,
accelerator pedal is depressed too much) may
be displayed.
A buzzer also sounds.
Drive the vehicle for a while.
Indicates that the LDA (Lane Departure Alert with
steering control) system cannot be used as the
vehicle speed is approximately 32 mph (50 km/h)
or less
Drive the vehicle at approximately 32 mph
(50 km/h) or more.
Indicates that LDA (Lane Departure Alert with
steering control) system cannot be used due to
the vehicle speed being too high
Slow down.
Displayed messageDetails/Actions
(Flashes
3 times)
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5008-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
■Warning messages
The warning message illustrations used are intended as examples, and may
differ from the image that is actually displayed on the multi-information dis-
play.
■ Warning message in radar cruise mode
In the following cases, the warning message may not be displayed even if
vehicle-to-vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or
the vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed
■ Warning buzzer
P. 483
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5018-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
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When trouble arises
InteriorbuzzerExterior buzzerWarning messageDetails/Actions
Power was turned off due to the
automatic power off function.
Next time when starting
the hybrid system, oper-
ate the hybrid system for
approximately 5 minutes
to recharge the 12-volt bat-
tery.
Con-
tinu-
ous The driver’s door was opened
while any shift position other
than P was selected without
turning off the power switch.
Shift the shift position to P.
Con-
tinu-
ousContin-
uous
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while any shift position
other than P was selected with-
out turning off the power switch.
Shift the shift position to P.
Bring the electronic key
back into the vehicle.
Once An attempt was made to start
the hybrid system without the
electronic key being present, or
the electronic key was not func-
tioning normally.
Start the hybrid system
with the electronic key
present.
An attempt was made to drive
when the regular key was not
inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
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(Flashes)
(Flashes)
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5028-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
Once3 times
The electronic key was carried
outside the vehicle and a door
other than the driver’s door was
opened and closed while the
power switch was in a mode
other than off.
Bring the electronic key
back into the vehicle.
The electronic key was carried
outside the vehicle and the
driver’s door was opened and
closed while the shift position P
was selected without turning off
the power switch.
Turn the power switch off.
Bring the electronic key
back into the vehicle.
Once
Sounds
once for
5
seconds
An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the power switch
off.
Turn the power switch off
and lock the doors again.
Interior
buzzerExterior buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)