2017 TOYOTA PRIUS V warning light

5018-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
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-ti re pressure warning system) that
illuminates a low tire pre ssure 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 effi ciency and tire tread life, and may
affect the vehicle’s hand ling and stopping ability.
Please note that the TPMS (tire pres sure warning system) is not a sub-
stitute for proper ti re maintenance, and it is the driver’s responsibility to
maintain correct tire pressure, even if under-inflation has not reached
the level to trigger illumina tion 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 lo w tire pressure telltale (tire pressure
warning light). When the system dete cts a malfunction, the telltale will
flash for approximately one minute and then remain continuously illumi-
nated. This sequence will continue up on 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 installati on 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 te lltale 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.

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.

5038-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
After taking the specified steps to correct the suspected problem,
check that the smart key system warning light or the smart key system
indicator light turn off.
Follow the correction procedures. (vehicles without multi-infor-
mation display)
Interior buzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure
Continuous Continuous
(Flashes in yellow)
Smart key system
warning light
The electronic key was
carried outside the
vehicle and the
driver’s door was
opened and closed
while any shift posi-
tion other than P was
selected without turn-
ing off the power
switch. • Change the
shift position to
P.
• Bring the elec- tronic key back
into the vehicle.
Once3 times
(Flashes in yellow)
Smart key system
warning light
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 or bring
the electronic key
back into the vehi-
cle.

5048-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
Once3 times
(Flashes in yellow)
Smart key system
warning light
Indicates that a door
other than the driver’s
door has been opened
and closed with the
power switch in any
mode other than off
and the electronic key
outside of the detec-
tion area.
Confirm the loca-
tion of the elec-
tronic key.
OnceContinuous
(5 seconds)
(Flashes in yellow)
Smart key system
warning light
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.
Once(Flashes in
yellow for 15 seconds)
Smart key system
warning light
Indicates that the elec-
tronic key is not
present when attempt-
ing to start the engine.
Confirm the loca-
tion of the elec-
tronic key.
9 times
(Flashes in yellow)
Smart key system
warning light
An attempt was made
to drive when the regu-
lar key was not inside
the vehicle.
Confirm that the
electronic key is
inside the vehicle.
InteriorbuzzerExterior buzzerWarning lightWarning light/DetailsCorrection procedure

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

506
PRIUS v_OM_OM47B23U_(U)
8-2. Steps to take in an emergency
If a war ning message is displayed
Master warning light
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
If any of the warning lights come on again after the following actions
have been performed, contact your Toyota dealer.
: If equipped
If a warning is shown on the multi-information display, stay calm
and perform the following actions:
1
2

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)

5158-2. Steps to take in an emergency
PRIUS v_OM_OM47B23U_(U)
8
When trouble arises
Shift control system communication malfunctionA 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. 186) 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
Flashes)