Page 464 of 568

4647-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
Indicates that the hybrid system has overheated
This message may be displayed when driving
under severe operating conditions, and the out-
put of the hybrid system may temporarily
decrease in order to protect the system. (For
example, when driving up a long steep hill or
driving up a steep hill in reverse.)
A buzzer also sounds.
Stop the vehicle in a safe place.
Handling method ( P. 520)
(If equipped)
Indicates a malfunction in the Automatic High
Beam
A buzzer also sounds.
Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
(If equipped)
Indicates a malfunction in the RSA (Road Sign
Assist)
A buzzer also sounds
Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
brake override system is operating.
Release the accelerator pedal and depress
the brake pedal. ( P. 2 1 3 )
(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.
Warning messageDetails/Actions
(flashes)
Page 465 of 568

4657-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
(If equipped)
Indicates that the PCS (Pre-Crash Safety sys-
tem) is temporarily unavailable
When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
(If equipped)
Indicates that the PCS (Pre-Crash Safety sys-
tem) is temporarily unavailable
When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
(If equipped)
Indicates that part of the PCS (Pre-Crash Safety
system) sensor is dirty, covered with ice, etc.
Remove any dirt, ice, etc.
Hybrid battery (traction battery) inspection or
replacement time.
Have the hybrid battery (traction battery)
inspected by any authorized Toyota retailer
or Toyota authorized repairer, or any reli-
able repairer immediately.
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 any
authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer
immediately.
Indicates that restarting of the hybrid system is
not possible.
Contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer immediately.
Warning messageDetails/Actions
Page 468 of 568

4687-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
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. 513).
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 any author ized Toyota retailer
or Toyota authorized repairer, or any reli-
able repairer.
Shift control system malfunction
A buzzer also sounds.
Have the vehicle inspected by any autho-
rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
• 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
Page 470 of 568
4707-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
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 battery) cooling compo-
nent at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer.
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.
Page 471 of 568
4717-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
*: For the EV drive mode operating conditions (P. 231).
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.
(If equipped)
Indicates that the LDA (Lane Departure Alert with
steering control) system cannot be used as the
vehicle speed is approximately 50 km/h (32 mph)
or less
Drive the vehicle at approximately 50 km/h
(32 mph) or more.
(If equipped)
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)
Page 472 of 568
4727-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
■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 dynamic radar cruise mode (if equipped)
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. 453
Page 473 of 568

4737-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
7
When trouble arises
Interior
buzzer
Exterior
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.
Contin-
uous
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.
Contin-
uous
Contin-
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.
(Flashes)
(Displayed alternately)
(Flashes)
(Flashes)
Page 474 of 568
4747-2. Steps to take in an emergency
PRIUS +_OM_OM47D30E_(EE)
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
buzzer
Exterior
buzzerWarning messageDetails/Actions
(Flashes)
(Displayed alternately)
(Flashes)