
5048-1. Essential information
Owners Manual_USA_M42C01_en
8-1.Essential information
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch 
once again.
■Emergency flashers
●If the emergency flashers are 
used for a long time while the EV 
system is not operating (while the 
“READY” indicator is not illumi-
nated), the 12-volt battery may 
discharge.
●If any of the SRS airbags deploy 
(inflate) or in the event of a strong 
rear impact, the emergency flash-
ers will turn on automatically.
The emergency flashers will turn 
off automatically after operating 
for approximately 20 minutes. To 
manually turn t he emergency 
flashers off, press the switch 
twice. (The emergency flashers 
may not turn on automatically 
depending on the force of the 
impact and conditions of the colli- sion.)
Emergency flashers
The emergency flashers are 
used to warn other drivers 
when the vehicle has to be 
stopped in the road due to a 
breakdown, etc.
Operating instructions 

5138-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■Brake system warning light (warning buzzer)
■Brake system warning light
■Charging system warning light*
*: This light illuminates on the mu lti-information display with a message.
If  a war ning light tur ns on or a war ning buzzer 
sounds
Calmly perform the following actions if any of the warning 
lights comes on or flashes. If a light comes on or flashes, but  
then goes off, this does not necessarily indicate a malfunc-
tion in the system. However, if this continues to occur, have 
the vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.) or
(Canada) (Red)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. C ontinuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in:
 The regenerative braking system;
 The electronically contr olled brake system; or
 The parking brake system
 Have the vehicle inspecte d by your Toyota dealer 
immediately.
Warning lightDetails/Actions
Indicates a malfunction in t he vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. 

5168-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
■Rear passengers’ seat belt reminder lights (warning buzzer*)
*: Rear passengers’ seat  belt warning buzzer:
The rear passengers’ seat belt warning buzzer sounds to alert t he rear pas-
senger that his or he r seat belt is not fastened. If the seat b elt is unfas-
tened, the buzzer sounds intermittently for a certain period of  time after the 
vehicle reaches  a certain speed.
■Tire pressure warning light
■LDA indicator (warning buzzer)
■LTA indicator (warning buzzer)
Warning lightDetails/Actions
Warns the rear passengers  to fasten their seat belts
 Fasten the seat belt.
Warning lightDetails/Actions
When the light comes on after b linking for approximately 1 
minute (a buzzer does not sounds):
Malfunction in the tire  pressure warning system
 Have the system checked by your Toyota dealer.
When the light comes on (a buzzer sounds):
Low tire inflation pressu re from natural causes
 After the temperature of the tires has lowered suffi-
ciently, check the inflation  pressure of each tire and 
adjust them to the specified level.( P.513)
Low tire inflation pres sure from flat tire
 Immediately stop the vehic le in a safe place and per-
form the necessary actions ( P.519)
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the  LDA (Lane Departure Alert).
 Follow the instructions dis played on the multi-infor-
mation display.
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in t he LTA (Lane Tracing Assist)
 Follow the instructions dis played on the multi-infor-
mation display. 

5208-2. Steps to take in an emergency
Owners Manual_USA_M42C01_encome 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).
■Conditions that the tire pres-
sure warning system may not 
function properly
 P. 4 7 4
WARNING
■If both the ABS and the brake 
system warning lights remain 
on
Stop your vehicle  in a safe place 
immediately and contact your Toy-
ota dealer.
The vehicle will become 
extremely unstable during brak-
ing, 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
When the light comes on yellow, 
the assist to the power steering is 
restricted. When  the light comes 
on red, the assist to the power 
steering is lost and handling oper-
ations of the steering wheel 
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 immedi-
ately.
●If the tire pressure warning light 
comes on even after tire infla-
tion pressure adjustment, it is 
probable that you have a flat 
tire. Check the tires. If a tire is 
flat, repair the flat tire by using 
emergency tire puncture repair 
kit.
●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.
■Maintenance of the tires
Each tire, includi ng the spare (if 
provided), should be checked 
monthly when cold and inflated to 
the inflation pressure recom-
mended by the vehicle manufac-
turer on the vehicle placard or tire 
inflation pressure  label (tire and 
load information label). (If your 
vehicle has tires of a different size 
than the size indicated on the 
vehicle placard or tire inflation 
pressure label [tire and load infor-
mation label], you should deter-
mine the proper tire inflation 
pressure for those tires.) 

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 

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)  

5539-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
NOTICE
■Cooling system coolant
In order to ensure maximum perfor mance of the traction battery cooling 
system and limit risks of battery short-circuit and other damag e to your 
vehicle, Toyota recommends using  “Toyota Genuine Traction Battery 
Coolant” or similar high-quality  ethylene glycol-based, low electric con-
ductivity coolant, non-amine and non-borate coolant with azole additives.
Toyota cannot guarantee that th e use of a product other than “Toyota 
Genuine Traction Battery Cool ant” will prevent risks of battery  short-circuit 
or other damage.
Never use water as  it will cause damage.
Do not reuse coolant that has been removed from the radiator.
Heater system
Capacity4.2 qt. (4.0 L, 3.5 Imp. qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol- based non-silicate , non-amine, non-
nitrite, and non-borate coolant with long-
life hybrid organic acid technology
Do not use plain  water alone.
Electrical system ( 12-volt battery)
Specific voltage reading at 
68°F (20°C):
12.0 V or More
In the case the voltage is less than stan-
dard, charge battery.
(Voltage is checked 20 minutes after the 
motor and all lights turned off.)
Charging rates5 A max. 

5719-2. Customization
Owners Manual_USA_M42C01_en
9
Vehicle specifications
*: If equipped
■Power windows ( P.212)
■Power switch ( P.234)
■Lights ( P.248)
*: Except for Canada
Buzzer volumeLevel 3Level 1–O–Level 2
Operation buzzerOffOn––O
Hands Free Power Back 
Door (kick sensor)
*OnOff–OO
Kick in buzzer (kick sensor)*OnOff––O
Hands Free Power Back 
Door (kick sensor) when the 
power switch is OFF
*OnOff––O
FunctionDefault settingCustomized 
setting
Key linked operation (open)OffOn––O
Key linked operation (close)OffOn––O
Wireless remote control 
linked operation (open)OffOn––O
Wireless remote control 
linked operation signal 
(buzzer)
OnOff––O
FunctionCustomized setting
ACC modeON/OFFO–O
FunctionDefault settingCustomized setting
Daytime Running LightsOnOff*O–O
Light reminder buzzerOnOff––O
FunctionDefault settingCustomized setting