5258-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• The temperature of the radar sen- sor is outside of the operating
range. Wait for the temperature to
become appropriate.
■If “System Stopped Front Radar
In Self Calibration See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collis ion System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.261)
• The radar sensor may be mis- aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.
■If “Cruise Control Unavailable
See Owner’s Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist s witch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If a message that indicates the
need for visiting your Toyota
dealer is displayed
The system or part shown on the
multi-information di splay is malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer immediately.
■If a message that indicates the
need for the rotary shifter oper-
ation is displayed
To prevent the rota ry shifter from
being operated incorrectly or the
vehicle from moving unexpectedly, a
message that requires shifting the
shift position may be displayed on
the multi-informatio n display. In that
case, follow the in struction of the
message and shift the shift position.
■If a message that indicates the
need for referring to Owner’s
Manual is displayed
●If any of the following messages
are shown on the multi-informa-
tion display, follow the instruc-
tions.
• “Battery Low” ( P.541)
• “Check Charging System Close Charging Port Lid” ( P.140)
• “Charging system malfunction”
( P.140)
• “Charging stopped High energy use” ( P.140)
●If any of the following messages
are shown on the multi-informa-
tion display, it may indicate a mal-
function. Have the vehicle
inspected by your Toyota dealer
immediately.
• “Entry & Start System Malfunction”
• “Traction battery system malfunc- tion”
• “Accelerator system malfunction”
• “Plug-in Charging System Mal- function”
• “EV system malfunction”
• “Shift System Mal function Apply
Parking Brake Securely When
Parking See Owner’s Manual”
• “Shift System M alfunction See
Owner’s Manual”
• “Shift System Malfunction Stop in
5268-2. Steps to take in an emergency
Owners Manual_USA_M42C01_ena Safe Place See Owner’s Man-
ual”
• “P Switch Malfunction Apply Park-
ing Brake Securely When Parking
See Owner’s Manual”
• “Shift System Unavailable Apply
Parking Brake Securely When
Parking See Owner’s Manual”
• “Battery Low Shifting Unavailable
See Owner’s Manual”
●If any of the following messages
are shown on the multi-informa-
tion display, it may indicate a mal-
function. Immediat ely stop the
vehicle and contact your Toyota
dealer.
• “Braking Power Low”
NOTICE
■If “High Power Consumption
Power to Climate Temporar-
ily Limited” is displayed fre-
quently
There is a possible malfunction
relating to the charging system or
the 12-volt battery may be deteri-
orating. Have the vehicle
inspected by your Toyota dealer.
■If “Battery Low” is displayed
frequently
The 12-volt battery may have
deteriorated. As the battery may
discharge in this state when left
unattended, have the battery
inspected by your Toyota dealer.
■If “Maintenance Reqd. For
Traction Battery At Your
Dealer” is shown
The traction battery is scheduled
to be inspected or replaced. Have
the vehicle inspected by your Toy-
ota dealer immediately.
●Continuing to dri ve the vehicle
without having the traction bat-
tery inspected will cause the EV
system not to start.
●If the EV system does not start,
contact your Toyota dealer
immediately.
5278-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
Stop the vehicle in a safe
place on a hard, flat surface.
Set the parking brake.
Shift the shift position to P.
Stop the EV system.
Turn on the emergency flash-
ers.
Check the degree of the tire
damage.
A tire should only be repaired with
the emergency tire puncture repair
kit if the damage is caused by a nail
or screw passing through the tire
tread.
• Do not remove the nail or screw
from the tire. Removing the object
may widen the opening and make
emergency repair with the repair
kit impossible.
• To avoid sealant leakage, move the vehicle until the area of the
puncture, if known, is positioned
at the top of the tire.
■A flat tire that cannot be
repaired with the emergency
tire puncture repair kit
In the following cases, the tire can-
not be repaired with the emergency
If you have a flat tire
Your vehicle is not
equipped with a spare tire,
but instead is equipped with
an emergency tire puncture
repair kit.
A puncture caused by a nail
or screw passing through
the tire tread can be
repaired temporarily using
the emergency tire puncture
repair kit.
(The kit contains a bottle of
sealant. The sealant can be
used only once to temporar-
ily repair one tire without
removing the nail or screw
from the tire.) Depending on
the damage condition of the
flat tire, it may not be able to
repaired with the emer-
gency tire puncture repair
kit.
After temporarily repairing
the tire with the kit, have the
tire repaired or replaced by
your Toyota dealer.
WARNING
■If you have a flat tire
Do not continue driving with a flat
tire.
Driving even a short distance with
a flat tire can damage the tire and
the wheel beyond repair, which
could result in an accident.
Before repairing the vehi-
cle
5378-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
One of the following may be the
cause of the problem:
The charging cable may be
connected to the vehicle.
( P.102)
The electronic key may not be
functioning properly.
*
( P.539)
The traction battery may be
completely discharged.
Charge the traction battery.
( P.98)
There may be a malfunction
in the immobilizer system.
*
( P.68)
There may be a malfunction
in the shift control system.
*
( P.233, 525)
The EV system may be mal-
functioning due to an electri-
cal problem such as
electronic key battery deple-
tion or a blown fuse. However,
NOTICE
●Do not put the repair kit directly
onto dusty ground such as sand
at the side of the road. If the
repair kit vacuums up dust, etc.,
a malfunction may occur.
●Make sure the sealant bottle of
the repair kit is in a vertical posi-
tion. The repair kit does not
operate properly when it is laid.
■Precautions for the emer-
gency tire puncture repair kit
●The repair kit power source
should be 12 V DC suitable for
vehicle use. Do not connect the
repair kit to any other source.
●Place the repair kit in a storage
to prevent it from being exposed
to dirt or water.
●Store the repair kit in the lug-
gage compartment out of reach
of children.
●Do not disassemble or modify
the repair kit. Do not subject
parts such as the air pressure
indicator to impacts. This may
cause a malfunction.
■To avoid damage to the tire
pressure warning valves and
transmitters
When a tire is repaired with liquid
sealants, the tire pressure warn-
ing valve and transmitter may not
operate properly. If a liquid seal-
ant is used, contact your Toyota
dealer or other qualified service
shop as soon as possible. After
use of liquid sealant, make sure to
replace the tire pressure warning
valve and transmitter when repair-
ing or replacing the tire. ( P.476)
If the EV system will
not star t
Reasons for the EV system
not starting vary depending
on the situation. Check the
following and perform the
appropriate procedure:
The EV system will not
start even though the cor-
rect starting procedure is
being followed ( P.231)
5388-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
depending on the type of mal-
function, an interim measure
is available to start the EV
system. (P.538)
There is a possibility that the
temperature of the traction
battery is extremely low
(approximately below -22°F [-
30°C]). ( P.77, 232)
*: It may not be possible to shift the
shift position from P
One of the following may be the
cause of the problem:
The 12-volt battery may be
discharged. ( P.541)
The 12-volt battery terminal
connections may be loose or
corroded. ( P.468)
One of the following may be the
cause of the problem:
The 12-volt battery may be
discharged. ( P.541)
One or both of the 12-volt bat-
tery terminals may be discon-
nected. ( P.468)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
When the EV system does not
start, the following steps can be
used as an interim measure to
start the EV system if the power
switch is functioning normally.
Do not use this starting proce-
dure except in cases of emer-
gency.
1
Set the parking brake.
2 Turn the power switch to
ACC.
*
3Press and hold the power
switch for about 15 seconds
while depressing the brake
pedal firmly.
After pressing the power switch for
a while, a message regarding 12-
volt battery control will be dis-
played, however continuing press-
ing the switch.
Even if the EV system can be
started using the above steps,
the system may be malfunction-
ing. Have the vehicle inspected
by your Toyota dealer.
*: Setting can be customized.
( P.571)
The interior lights and
headlights are dim, or the
horn does not sound or
sounds at a low volume
The interior lights and
headlights do not turn on,
or the horn does not
sound
Starting the EV system in
an emergency
5418-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
cannot be started, contact your Toy-
ota dealer.
■Stopping the EV system
Shift the shift position to P, set the
parking brake and press the power
switch as you no rmally do when
stopping the EV system.
■Replacing the key battery
As the above proc edure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediate ly when the bat-
tery is depleted. ( P.497)
■Alarm
If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered. ( P. 6 9 )
■Changing power switch modes
Release the brake pedal and press
the power switch in step 3 above.
The EV system does not start and
modes will be cha nged each time
the switch is pressed. ( P.234)
If you have a set of jumper (or
booster) cables and a second
vehicle with a 12-volt battery,
you can jump start your vehicle
by following the steps below.
1Confirm that the electronic
key is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and the doors locked. ( P. 7 0 )
2 Open the hood ( P.462).
3 Open the positive (+) battery
terminal cover.
While pressing on the claw, open
the cover as shown in the illustra-
If the 12-volt batter y is
discharged
The following procedures
may be used to start the EV
system if the vehicle’s 12-
volt battery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.
Restarting the EV system
5438-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
6 Open and close any of the
doors of your vehicle with the
power switch OFF.
7 Maintain the engine speed of
the second vehicle and start
the EV system of your vehi-
cle by turning the power
switch to ON.
8 Make sure the “READY” indi-
cator comes on. If the indica-
tor light does not come on,
contact your Toyota dealer.
9 Once the EV system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10 Close the positive (+) battery
terminal cover.
Once the EV system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
■Starting the EV system when
the 12-volt battery is dis-
charged
The EV system cannot be started by
push-starting.
■To prevent 12-volt battery dis-
charge
●Turn off the headlights, the air
conditioning system, the audio
system, etc. while the EV system
is off.
●Turn off any unnecessary electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the EV system may be
unable to start. (The 12-volt battery
recharges automatically while the
EV system is operating.)
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at your Toyota dealer.
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the 12-
volt battery is discharged. Use the
wireless remote c ontrol or the
mechanical key to lock or unlock
the doors.
●The EV system may not start on
the first attempt a fter the 12-volt
battery has recharged but will start
normally after the second attempt.
This is not a malfunction.
●The power switch mode is memo-
rized by the vehicle. When the 12-
volt battery is reconnected, the
system will return to the mode it
was in before the 12-volt battery
was discharged. Before discon-
necting the 12-volt battery, turn
the power switch off.
If you are unsure what mode the
power switch was in before the
12-volt battery discharged, be
especially careful when recon-
necting the 12-volt battery.
●If the 12-volt battery discharges, it
may not be possible to shift the
shift position to o ther positions. In
this case, the vehicle cannot be
towed without lifting both front
wheels because the front wheels
will be locked.
●The power back door (if equipped)
5478-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
1 Stop the EV system. Set the
parking brake and shift the
shift position to P.
2 Remove the mud, snow or
sand from around the stuck
tire.
3 Place wood, stones or some
other material under the front
wheels to help provide trac-
tion.
4 Restart the EV system
5 Shift the shift position to D or
R and release the parking
brake. Then, while exercising
caution, depress the acceler-
ator pedal.
■When it is difficult to free the
vehicle
Press to turn off TRAC.
( P.388)
WARNING
●Keep hands and clothing (espe-
cially a tie, a scarf or a muffler)
away from the fan. Failure to do
so may cause the hands or
clothing to be caught, resulting
in serious injury.
●Do not loosen the coolant reser-
voir cap while the EV system
and radiator are hot. High tem-
perature steam or coolant could
spray out.
NOTICE
■When adding coolant
Add coolant slowly after the EV
system has cooled down suffi-
ciently. Adding cool coolant to a
hot EV system too quickly can
cause damage to the EV system.
■To prevent damage to the
cooling system
Observe the following precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust, etc.).
●Do not use water or any other
coolant when refilling coolant.
Also, do not use any additive
agents for the coolant.
If the vehicle becomes
stuck
Carry out the following pro-
cedures if the tires spin or
the vehicle becomes stuck
in mud, dirt or snow:
Recovering procedure