Toyota Prius V (2018 year). Instruction - part 29
8-2. Steps to take in an emergency
483
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflation pressure changes caused by tem-
perature. In this case, adjusting the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with a tire pressure warning valve
and transmitter. If a tire goes flat, the tire pressure warning light will not
turn off even though the flat tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire and adjust the tire inflation
pressure. The tire pressure warning light will go off after a few minutes.
■If the tire pressure warning system is not functioning
P. 436
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for
1 minute when the power switch is turned to ON mode, have it checked
by your Toyota dealer.
■ Warning buzzer
In some cases, the buzzer may not be heard due to being in a noisy location
or audio sound.
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484
8-2. Steps to take in an emergency
WARNING
■ If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Toyota
dealer. The vehicle will become extremely unstable during braking, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
When steering wheel operations are heavier than usual, grip the steering
wheel firmly and operate it using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could
cause a loss of vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire
inflation pressure immediately.
● If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, it is probable that you have a flat tire. Check the tires.
If a tire is flat, change it with the spare tire and have the flat tire
repaired by the nearest Toyota dealer.
● Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate,
you could lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
8-2. Steps to take in an emergency
485
WARNING
■ Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation pressure
label (tire and load information label). (If your vehicle has tires of a dif-
ferent size than the size indicated on the vehicle placard or tire inflation
pressure label [tire and load information label], you should determine
the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS-tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Accordingly,
when the low tire pressure telltale (tire pressure warning light) illumi-
nates, you should stop and check your tires as soon as possible, and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread life, and may
affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a sub-
stitute for proper tire maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumination of the TPMS low tire pressure telltale (tire
pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warn-
ing system) malfunction indicator to indicate when the system is not
operating properly. The TPMS (tire pressure warning system) malfunc-
tion indicator is combined with the low tire pressure telltale (tire pressure
warning light). When the system detects a malfunction, the telltale will
flash for approximately one minute and then remain continuously illumi-
8
nated. This sequence will continue upon subsequent vehicle start-ups
as long as the malfunction exists. When the malfunction indicator is illu-
minated, the system may not be able to detect or signal low tire pres-
sure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a vari-
ety of reasons, including the installation of replacement or alternate tires
or wheels on the vehicle that prevent the TPMS (tire pressure warning
system) from functioning properly. Always check the TPMS (tire pres-
sure warning system) malfunction telltale after replacing one or more
tires or wheels on your vehicle to ensure that the replacement or alter-
nate tires and wheels allow the TPMS (tire pressure warning system) to
continue to function properly.
486
8-2. Steps to take in an emergency
NOTICE
■ To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire
pressure warning system may not operate properly.
8-2. Steps to take in an emergency
487
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
Master warning light
1
The master warning light also
comes on or flashes in order to
indicate that a message is cur-
rently being displayed on the
multi-information display.
Multi-information display
2
If any of the warning lights come on again after the following actions
have been performed, contact your Toyota dealer.
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488
8-2. Steps to take in an emergency
Warning message and warning buzzer list
Warning message
Details/Actions
Indicates that:
• There is a high possibility of a frontal collision;
or
• The pre-collision braking function is operating
A buzzer also sounds.
Slow the vehicle by applying the brakes.
Indicates that your vehicle is nearing the vehicle
ahead
(in vehicle-to-vehicle distance control
mode)
A buzzer also sounds.
Slow the vehicle by applying the brakes.
Indicates that the vehicle has deviated from the
lane (while the LDA [Lane Departure Alert with
steering control] system is operating)
The lane line on the side the vehicle has devi-
ated from flashes in amber.
A buzzer also sounds.
Check around the vehicle and back to
(Yellow)
(Flashes)
inside of the lane lines.
Indicates that the accelerator pedal is depressed
while the shift position is in N
A buzzer also sounds.
Release the accelerator pedal and shift the
shift position to D or R.
(Flashes)
Indicates that the accelerator pedal is depressed
to stop the vehicle on an upward slope etc.
A buzzer also sounds. If this continues, the
hybrid system may overheat.
Release the accelerator pedal and depress
the brake pedal.
(Flashes)
Indicates that the hybrid battery (traction battery)
power has dropped because a certain period of
time has elapsed after shifting the shift position to
N
A buzzer also sounds.
Restart the hybrid system when starting
(Flashes)
the vehicle.
8-2. Steps to take in an emergency
489
Warning message
Details/Actions
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, shift the shift
position to P. The battery cannot be
charged with the shift position in N.
(Flashes)
Indicates that the shift position was changed and
Drive-Start Control was operated while depress-
8
ing the accelerator pedal
A buzzer also sounds.
Momentarily release the accelerator pedal.
(Flashes)
Indicates that the LDA (Lane Departure Alert with
steering control) system has determined that the
driver does not have the hands on the steering
wheel while the steering control function is on
If the driver operates the steering wheel only a
small amount, the system may be unable to
detect the steering wheel operations and this
warning may be displayed.
Firmly hold the steering wheel.
490
8-2. Steps to take in an emergency
Warning message
Details/Actions
Indicates that steering control function is tempo-
rarily canceled due to the LDA (Lane Departure
Alert with steering control) system determining
that the driver does not have the hands on the
steering wheel while the steering control function
is on
If the driver operates the steering wheel only a
small amount, the system may be unable to
detect the steering wheel operations and this
warning may be displayed.
Firmly hold the steering wheel.
Indicates that the radar sensor is dirty or covered
with ice
A buzzer also sounds.
Clean the sensor.
Indicates that the dynamic radar cruise control
system cannot be used temporarily due to bad
weather
A buzzer also sounds.
Use the radar cruise control system when it
becomes available again.
Indicates a malfunction in the dynamic radar
cruise control system
Press the “ON-OFF” button once to deactivate
the system, and then press the button again to
reactivate the system.
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the LDA (Lane Depar-
ture Alert with steering control) system
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(Yellow)
8-2. Steps to take in an emergency
491
Warning message
Details/Actions
The operation conditions of the camera sensor
(temperature, etc.) are not met.
When the operation conditions of the cam-
era sensor (temperature, etc.) are met, the
following systems will become available.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering con-
(Yellow)
trol) system
• Automatic High Beam
Indicates that the system is temporarily unavail-
able due to a malfunction in a sensor other than
the camera sensor
A buzzer also sounds.
Turn the LDA (Lane Departure Alert with
steering control) system off, wait for a little
while, and then turn the LDA (Lane Depar-
(Yellow)
ture Alert with steering control) system
back on.
Dirt, rain, condensation, ice, snow, etc., are pres-
ent on the windshield in front of the camera sen-
sor.
The following systems will be temporarily unus-
able.
• PCS (Pre-Collision System)
• LDA (Lane Departure Alert with steering con-
trol) system
• Automatic High Beam
Turn the system off, remove any dirt, rain,
(Yellow)
condensation, ice, snow, etc., from the
windshield, and then turn the system back
8
on.
Indicates a malfunction in the pre-collision sys-
tem
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer immediately.
492
8-2. Steps to take in an emergency
Warning message
Details/Actions
Indicates an engine oil pressure malfunction
A buzzer also sounds.
Immediately stop the vehicle in a safe place
and contact your Toyota dealer.
Indicates a malfunction in the Drive-Start Control
system
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the brake override sys-
tem
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer immediately.
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 and check. (P. 528)
Indicates a malfunction in the Automatic High
Beam
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
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. 151)
8-2. Steps to take in an emergency
493
Warning message
Details/Actions
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.
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. 255)
Indicates that the PCS (Pre-Collision System) is
temporarily unavailable
When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by your Toyota dealer.
Indicates that the PCS (Pre-Collision System) is
temporarily unavailable
When conditions improve, the system
resumes operation. If this item is displayed
continuously, have the vehicle inspected
by your Toyota dealer.
Indicates that part of the PCS (Pre-Collision Sys-
8
tem) 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 your Toyota dealer immedi-
ately.
494
8-2. Steps to take in an emergency
Warning message
Details/Actions
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.
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. 523).
(Flashes)
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.
(Flashes)
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.
(Flashes)
8-2. Steps to take in an emergency
495
Warning message
Details/Actions
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
(Flashes)
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.
(Flashes)
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.
(Flashes)
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.
8
Stop the vehicle, and then change the shift
position.
(Flashes)
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.
(Flashes)
496
8-2. Steps to take in an emergency
Warning message
Details/Actions
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.
(Flashes)
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.
8-2. Steps to take in an emergency
497
Warning message
Details/Actions
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.
Indicates a malfunction in the LED headlight sys-
tem
8
A buzzer also sounds.
Have the vehicle inspected by your Toyota
dealer.
(Turns on or
Flashes)
(If equipped)
498
8-2. Steps to take in an emergency
Other displayed messages
Carrying out the corresponding action turns the messages off.
Displayed message
Details/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 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.
8-2. Steps to take in an emergency
499
Displayed message
Details/Actions
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.
(Flashes
3 times)
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
8
Slow down.
*: For the EV drive mode operating conditions (P. 173).