stop start TOYOTA PRIUS PRIME 2023 Owners Manual

545
8
8
When trouble arises
When trouble arises
8-1. Essential informationEmergency flashers .... 546
If your vehicle has to be stopped in an emergency.................................. 547
If the vehicle is submerged or water on the road is ris-
ing ............................. 548
8-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 550
If you think something is wrong ........................ 554
If a warning light turns on or a warning buzzer sounds
.................................. 555
If a warning message is dis- played........................ 566
If you have a flat tire.... 574
If the hybrid system will not start ........................... 584
If you lose your keys ... 586
If the electronic key does not operate properly .. 587
If the 12-volt battery is dis- charged ..................... 589
If your vehicle overheats .................................. 594
If the vehicle becomes stuck .......................... 597

5658-2. Steps to take in an emergency
8
When trouble arises
WARNING
As an added safety feature, your
vehicle has been equipped with a
tire pressure monitoring system
(TPMS-tire pressure warning sys-
tem) 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 pres-
sure warning light) illuminates,
you should stop and check your
tires as soon as possible, and
inflate them to the proper pres-
sure. 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 vehi-
cle’s handling and stopping abil-
ity.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for proper tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reached the level to
trigger illumination of the TPMS
low tire pressure telltale (tire pres-
sure warning light).
Your vehicle has also been
equipped with a TPMS (tire pres-
sure warning system) malfunc-
tion indicator to indicate when the
system is not operating properly.
The TPMS (tire pressure warning
system) malfunction indicator is
combined with the low tire pres-
sure telltale (tire pressure warning
light). When the system detects a
malfunction, the telltale will flash
for approximately one minute and
then remain continuously illumi-
nated. This sequence will con-
tinue upon subsequent vehicle
start-ups as long as the malfunc-
tion exists. When the malfunction
indicator is illumi nated, the sys-
tem may not be able to detect or
signal low tire pressure as
intended.
TPMS (tire pressure warning sys-
tem) malfunctions may occur for a
variety 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 pressure
warning system) malfunction tell-
tale after replacing one or more
tires or wheels on your vehicle to
ensure that the replacement or
alternate tires and wheels allow
the TPMS (tire pressure warning
system) to continue to function
properly.
NOTICE
■To ensure the tire pressure
warning system operates
properly
Do not install tires with different
specifications or manufacturers
as the tire pressure warning sys-
tem may not operate properly.

5698-2. Steps to take in an emergency
8
When trouble arises
shift position is in N, shift the shift
position to P when the vehicle is
stopped.
■If “Hybrid System Overheated
Output Power Reduced” is
shown
The message may be shown when
driving under severe operating con-
ditions. (For example, when driving
up a long steep hill or driving up a
steep hill in reverse.)
Coping method: P.595
■If “Traction battery needs to be
protected. Shift into P to
restart.” is shown
This message is displayed when the
hybrid battery (traction battery)
charge has become extremely low
because the shift position has been
left in N for a certain amount of time.
When operating the vehicle, shift to
P and restart the hybrid system.
■If “Shift is in N Release Acceler-
ator Before Shifting” is shown
Message is displayed when the
accelerator pedal has been
depressed and the shift position is in
N. Release the accelerator pedal
and shift the shift position to D or R.
■If “Press brake when vehicle is
stopped Hybrid system may
overheat” is shown
Message is displayed when the
accelerator pedal is depressed to
maintain the vehicle position when
stopped on a upward slope, etc.
If this continues, the hybrid system
may overheat.
Release the accelerator pedal and
depress the brake pedal.
■If “Shift System Malfunction
Shifting Unavailable Drive to a
Safe Place and Stop” or “Shift
System Malfunction Driving
Unavailable” is displayed
There is a malfunction in the shift
control system. Have the vehicle
inspected by your Toyota dealer immediately.
■If “Auto Power OFF to Conserve
Battery” is shown
Power was turned off due to the
automatic power off function.
Next time when starting the hybrid
system, operate the hybrid system
for approximately 5 minutes to
recharge the 12-volt battery.
■If “Parking Assist Unavailable
Low Visibility See Owner’s Man-
ual” is displayed
Indicates one of the following sys-
tems is disabled.
● RCD (Rear Camera Detec-
tion) (if equipped)
● PKSB (Parking Support
Brake) (if equipped)
Remove any dirt or foreign matter
from the rear cameras.
■If “System Malfunction Visit
Your Dealer” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collision System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
● LCA (Lane Change Assist) (if
equipped)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
● RSA (Road Sign Assist) (if
equipped)
●PDA (Proactive Driving Assist)
● BSM (Blind Spot Monitor) (if
equipped)
● RCTA (Rear Cross Traffic
Alert) (if equipped)
●Safe Exit Assist (if equipped)

5878-2. Steps to take in an emergency
8
When trouble arises
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on.
(Customizable features: P.622)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.205)
●The electronic key function may
have stopped. ( P.205)
Use the mechanical key
( P.182) in order to perform the
following operations.
1 Locks all the doors
2 Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 5 seconds
unlocks the other doors.
■Key linked functions
1 Closes the windows (turn and
hold)
*
2Opens the windows (turn and
hold)
*
*
: These settings must be custom- ized at your Toyota dealer.
If the electronic key
does not op erate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.205)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the hybrid
system can be started by
following the procedure
below.
NOTICE
■In case of a smart key system
malfunction, or other key
related problems
Take your vehicle with all the
electronic keys provided with your
vehicle to your Toyota dealer.
Locking and unlocking
the doors

5888-2. Steps to take in an emergency
1Ensure that the shift position
is in P and depress the brake
pedal.
2 Touch the area behind the
buttons on the electronic key
to the power switch.
When the electronic key is
detected, a buzzer sounds and the
power switch will turn to ON.
When the smart key system is
deactivated in customization set-
ting, the power switch will turn to
ACC.
3Firmly depress the brake
pedal and check that
and a message are displayed on the multi-information dis-
play.
4 Press the power switch
shortly and firmly.
In the event that the hybrid system
still cannot be started, contact your
Toyota dealer.
■Stopping the hybrid system
Shift the shift position to P, set the
parking brake and press the power
switch as you normally do when
stopping the hybrid system.
■Replacing the key battery
As the above procedure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediately when the bat-
tery is depleted. ( P.538)
■Changing power switch modes
Release the brake pedal and press
the power switch in step 3 above.
The hybrid system does not start
and modes will be changed each
time the switch is pressed.
(  P.254)
WARNING
■When using the mechanical
key and operating the power
windows
Operate the power window after
checking to make sure that there
is no possibility of any passenger
having any of their body parts
caught in the window. Also, do not
allow children to operate the
mechanical key. It is possible for
children and other passengers to
get caught in th e power window.
Starting the hybrid sys-
tem

5958-2. Steps to take in an emergency
8
When trouble arises
5Add coolant if necessary.
Water can be used in an emer-
gency if engine coolant is unavail-
able.
If water was added in an emer-
gency, have the vehicle inspected
at your Toyota dealer as soon as
possible.
6Start the hybrid system and
turn the air conditioning sys-
tem on to check that the radi-
ator cooling fan operates and
to check for coolant leaks
from the radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is operating by check-
ing the fan sound and air flow. If it is
difficult to check these, turn the air
conditioning system on and off
repeatedly. (The fan may not oper-
ate in freezing temperatures.)
7If the fan is not operating:
Stop the hybrid system
immediately and contact your
Toyota dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
8 Check if “Engine Coolant
Temp High Stop in a Safe
Place See Owner’s Manual” is shown on the multi-infor-
mation display.
If the message does not disappear:
Stop the hybrid system and contact
your Toyota dealer.
If the message is not displayed:
Have the vehicle inspected at the
nearest Toyota dealer.
■If “Hybrid System Over-
heated Output Power
Reduced” is shown on the
multi-information display
1 Stop the vehicle in a safe
place.
2 Stop the hybrid system and
carefully lift the hood.
3 After the hybrid system has
cooled down, inspect the
hoses and radiator core (radi-
ator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4The coolant level is satisfac-
tory if it is between the “MAX”
A
B

5968-2. Steps to take in an emergency
and “MIN” lines on the reser-
voir.
Reservoir
“MAX” line
“MIN” line
5 Add coolant if necessary.
Water can be used in an emer-
gency if power control unit coolant
is unavailable.
If water was added in an emer-
gency, have the vehicle inspected
at your Toyota dealer as soon as
possible.
6After stopping the hybrid sys-
tem and waiting for 5 minutes
or more, start the hybrid sys-
tem again and check for the
multi-information display.
If the message does not disappear:
Stop the hybrid system and contact
your Toyota dealer.
If the message is not displayed:
The hybrid system temperature has dropped and the vehicle may be
driven normally.
However, if the message appears
again frequently, contact your
Toyota dealer.
A
B
C
WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●After the hybrid system has
been turned off, check that the
“READY” indicator is off.
When the hybrid system is oper-
ating, the gasoline engine may
automatically start, or the cool-
ing fan may suddenly operate
even if the gasoline engine
stops. Do not touch or approach
rotating parts such as the fan,
which may lead to fingers or
clothing (especially a tie, a scarf
or a muffler) getting caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while th e hybrid system
and radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine/power
control unit coolant
Add coolant slowly after the
hybrid system has cooled down
sufficiently. Adding cool coolant to
a hot hybrid system too quickly
can cause damage to the hybrid
system.

5978-2. Steps to take in an emergency
8
When trouble arises
1Stop the hybrid system. Set
the parking brake and shift
the shift position to P.
2 Remove the mud, snow or
sand from around the front
wheels.
3 Place wood, stones or some
other material under the front
wheels to help provide trac-
tion.
4 Restart the hybrid 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 diffic ult to free the
vehicle
Press to turn off TRAC.
(  P.425)
NOTICE
■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 any coolant additive.
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

Alphabetical Index655
Fuel .......................................... 279Capacity ............................... 601
Fuel gauge ........................... 155
Information ........................... 607
Refueling .............................. 279
Type ............................. 601, 607
Warning light ........................ 562
Fuel filler door ..... ................... 280
Opener switch ...................... 280
Refueling .............................. 279
Fuel gauge .............................. 155
Fuses ....................................... 540
G
Garage door opener ............... 477
Gauges .................................... 155
Glove box ................................ 451
H
Headlights ............................... 269 AHB (Automatic High Beam) 272
Headlight aim ....................... 542
Replacing exterior lights ....... 543
Switch................................... 269
Headlights aim ........................ 542
Head restraints ....................... 212
Heated steering wheel ........... 443
Heaters Automatic air conditioning sys-tem ..................................... 434
Heated steering wheel ......... 443
Hybrid battery (traction battery) ........................................... 108
Outside rear view mirrors ..... 436
Seat heaters ......................... 443
High mounted stoplight Replacing exterior lights ....... 543
High voltage components ....... 83
Hill-start assist control .......... 424
Hood ........................................ 501
Hooks Cargo hooks .........................454
Retaining hooks (floor mat) ....28
Horn .........................................215
HV mode ....................................73
Hybrid battery (traction battery) .................................................83Charging ...............................116
Location ..................................83
Specification .........................602
Hybrid battery (traction battery) charge mode ...........................75
Hybrid system ...........................72 ACC ......................................254
Acoustic Vehicle Alerting System.............................................81
Brake Override System ........240
Drive-Start Control (DSC) .....245
Emergency shut off system ....87
Energy monitor/consumption screen.................................173
High voltage components .......83
How to start the hybrid system ...........................................251
Hybrid System Indicator .......155
If the hybrid system will not start ...........................................584
If your vehicle has to be stopped in an emergency .................547
Ignition switch (power switch) ...........................................251
Overheating ..........................594
Plug-in Hybrid Electric Vehicle driving tips ............................88
Plug-in hybrid system precau- tions ......................................83
Power (ignition) switch .........251
Regenerative braking .............78
Starting the hybrid system ....251
Hybrid System Indicator ........155
I
I/M test .....................................498

656Alphabetical Index
IdentificationEngine .................................. 601
Vehicle ................................. 600
Ignition switch (power switch) ............................................... 251Auto power off function ........ 255
Changing the power switch modes ................................ 254
If your vehicle has to be stopped in an emergency................. 547
Starting the hybrid system.... 251
Illuminated entry system ....... 446
Illumination notification ......... 448
Immobilizer system .................. 70
Indicators ................................ 150
Initialization ............................ 634 Items to initialize................... 634
Maintenance......................... 495
Power back door .................. 199
Power windows .................... 227
Inside rear view mirror........... 216
Instrument panel light control ............................................... 160
Instrument panel ornament lights...................................... 446
Interior lights .......................... 446
Intuitive parking assist Function ............................... 363
Warning message ................ 365
J
JackPositioning a floor jack ......... 502
Vehicle-equipped jack .. 527, 575
Jack handle ..................... 527, 575
Jam protection function Memory recall function ......... 234
Power back door .................. 197
Power easy access system .. 231
Power windows .................... 227
Seat position memory .......... 231
K
Keyless entrySmart key system .................203
Wireless remote control........182
Keys .........................................180 Battery-saving function .........204
Electronic key .......................180
If the electronic key does not operate properly .................587
If you lose your keys.............586
Key number plate .................180
Keyless entry ................182, 203
Mechanical key.....................182
Power switch ........................251
Replacing the battery ...........538
Warning buzzer .. ..................204
Wireless remote control key .182
Knee airbags .............................35
L
Lane Tracing Assist (LTA) .....305 Operation..............................305
LATCH anchors ........................60
Lever Auxiliary catch le ver .............501
Hood lock releas e lever ........501
Shift lever .............................256
Tilt and telescopic steering lock release lever .......................215
Turn signal lever ...................262
Wiper lever ...........................275
License plate lights Replacing exterior lights .......543
Switch ...................................269
Lights AHB (Automatic High Beam) 272
Footwell lights.......................446
Front personal lights .............447
Headlight switch ...................269
Illuminated entry system .......446
Illumination notification .........448