stop start TOYOTA HIGHLANDER HYBRID 2023 Workshop Manual

3755-4. Using the other interior features
5
Interior features
ble device. (To check device
compatibility, refer to
www.homelink.com.)
1Within 5 seconds after pro-
gramming the garage door
opener has been completed,
if the garage door opener
motor is trained to Home-
Link
®, both garage door
operation indicators will flash
rapidly (green) and the light
on the garage door opener
motor will blink twice, indicat-
ing that 2-way communica-
tion is enabled.
If the indicators do not flash, per-
form 2 and 3 within the first 10
presses of the HomeLink
® button
after programming has been com-
pleted.
2 Press a programmed Home-
Link
® button to operate a
garage door.
3 Within 1 minute of pressing
the HomeLink
® button, after
the garage door operation
has stopped, press the
“Learn” or “Smart” button on
the garage door opener
motor. Within 5 seconds of
the establishment of 2-way
communication with the
garage door opener, both
garage door operation indica-
tors in the vehicle will flash
rapidly (green) and the light
on the garage door opener
motor will blink twice, indicat- ing that 2-way communica-
tion is enabled.
■Reprogramming a single
HomeLink
® button
When the following procedure is
performed, buttons which
already have devices registered
to them can be overwritten:
1 Press and hold the desired
HomeLink
® button.
2 When the HomeLink
® indica-
tor starts flashing orange,
release the HomeLink
® but-
ton and perform “Program-
ming HomeLink
®” 1 (it takes
20 seconds for the Home-
Link
® indicator to start flash-
ing).
■Before programming
●Install a new battery in the trans-
mitter.
●The battery side of the transmitter
must be pointed away from the
HomeLink
® buttons.
Press the appropriate Home-
Link
® button. The HomeLink®
indicator light should turn on.
The status of the opening and
closing of a garage door is
shown by the garage door
opener indicators.
Operating HomeLink®

437
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 438
If your vehicle has to be stopped in an emergency.................................. 438
If the vehicle is submerged or water on the road is ris-
ing ............................. 439
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 441
If you think something is wrong ........................ 443
If a warning light turns on or a warning buzzer sounds
.................................. 445
If a warning message is dis- played........................ 456
If you have a flat tire.... 461
If the hybrid system will not start ........................... 474
If you lose your keys ... 475
If the fuel filler door cannot be opened ................. 476
If the electronic key does not operate properly .. 477
If the 12-volt battery is dis- charged ..................... 479
If your vehicle overheats .................................. 484
If the vehicle becomes stuck .................................. 488

4557-2. Steps to take in an emergency
7
When trouble arises
WARNING
As an added safety feature, your
vehicle has been equipped with a
tire pressure m onitoring 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
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 signifi-
cantly 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 ability.
Please note that the TPMS (tire
pressure warning system) is not a
substitute for pro per tire mainte-
nance, and it is the driver’s
responsibility to maintain correct
tire pressure, even if under-infla-
tion has not reach ed 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 te lltale 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 illuminated, the sys-
tem may not be ab le 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 makers, as the
tire pressure warning system may
not operate properly.

4587-2. Steps to take in an emergency
■If “Hybrid System Stopped
Steering Power Low” is dis-
played
This message is displayed if the
hybrid system is stopped while driv-
ing.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using
more force th an usual.
■If “Hybrid System Overheated
Output Power Reduced” is dis-
played
This message may be displayed
when driving under severe operat-
ing conditions. (For example, when
driving up a long steep hill.)
Handling method: P. 4 8 4
■If “Traction Battery Needs to be
Protected Refrain from the Use
of N Position” is displayed
This message may be displayed
when the shift lever is in N.
As the hybrid batte ry (traction bat-
tery) cannot be charged when the
shift lever is in N, shift the shift lever
to P when the vehicle is stopped.
■If “Traction Battery Needs to be
Protected Shift into P to
Restart” is displayed
This message is displayed when the
hybrid battery (traction battery)
charge has become extremely low
because the shift lever 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 to P Before Exiting
Vehicle” or “Shift to P when
Parked” is displayed
This message is displayed when the
driver’s door is opened without turn-
ing the power swit ch off with the
shift lever in any position other than
P. Change the shift lever to P.
■If “Shift is in N Release Acceler-
ator Before Shifting” is dis-
played
The accelerator pedal has been
depressed when the shift lever is in
N.
Release the accelerator pedal and
shift the shift le ver to D, S or R.
■If “Press Brake when Vehicle is
Stopped Hybrid System may
Overheat” is displayed
The message may be displayed
when the accelerator pedal is
depressed to hold the vehicle while
the vehicle is stopped on an incline,
etc. The hybrid system may over-
heat. Release the accelerator pedal
and depress the brake pedal.
■If “Auto Power OFF to Conserve
Battery” is displayed
Power was cut off due to the auto-
matic 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 “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played
The following systems may be mal-
functioning. Hav e the vehicle
inspected by your Toyota dealer
immediately.
●The LED headlight system (if AFS
[Adaptive Front-lighting System]
equipped)
●AFS (Adaptive Front-lighting Sys-
tem) (if equipped)
●The automatic headlight leveling
system (if equipped)
●Automatic High Beam
■If “Radar Cruise Control
Unavailable See Owner's Man-
ual” is shown
The dynamic radar cruise control
with full-speed range system is sus-
pended temporarily or until the prob-
lem shown in the message is

4787-2. Steps to take in an emergency
1Ensure that the shift lever is
in P and depress the brake
pedal.
2 Touch the Toyota emblem
side of 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 is shown on the multi-informa-
tion display.
4 Press the power switch
shortly and firmly.
In the event that the hybrid sys-
tem still cannot be started, con-
tact your Toyota dealer.
■Stopping the hybrid system
Shift the shift lever to P, set the park-
ing brake, and press the power
switch as you normally do when
stopping the hybrid system.
■Replacing the key battery
As the above proce dure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediately when the bat-
tery is depleted. ( P.423)
■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.209)
WARNING
■When using the mechanical
key and operating the power
windows or moon roof (if
equipped)
Operate the power window or
moon roof after checking to make
sure that there is n o possibility of
any passenger having any of their
body parts caught in the window
or moon roof. Al so, do not allow
children to operate the mechani-
cal key. It is possible for children
and other passengers to get
caught in the power window or
moon roof.
Starting the hybrid sys-
tem

4847-2. Steps to take in an emergency
If the engine coolant tempera-
ture gauge enters the red
zone or “Engine Coolant
Temp High Stop in a Safe
Place See Owner’s Manual”
is shown on the multi-informa-
tion display
1 Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the hybrid system.
2 If you see steam:
Carefully lift the hood after
NOTICE
■When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan or belt.
■To prevent damaging the
vehicle
The exclusive jump starting termi-
nal is to be used when charging
the 12-volt battery from another
vehicle in an emergency. It cannot
be used to jump start another
vehicle.
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
 The needle of the engine
coolant temperature gauge
( P.87) enters the red zone
or a loss of hybrid system
power is experienced. (For
example, the vehicle speed
does not increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” or “Hybrid
System Overheated Output
Power Reduced” is shown
on the multi-information dis-
p l a y.
 Steam comes out from
under the hood.
Correction procedures

4857-2. Steps to take in an emergency
7
When trouble arises
the steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately cont act your Toyota
dealer.
4 The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line Radiator cap
5 Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
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

4867-2. Steps to take in an emergency
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 fan
If a large amount of coolant leaks,
immediately cont act your Toyota
dealer.
4 The coolant level is satisfac-
tory if it is between the “FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line
5 Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
6After stopping the hybrid sys-
tem and waiting for 5 minutes
or more, start the hybrid sys-
tem again and check if
“Hybrid System Overheated
Output Power Reduced” is
shown on the 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.

4877-2. Steps to take in an emergency
7
When trouble arises
However, if the message appears
again frequently, contact your Toy-
ota dealer.
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 radiator cap
and the coolant reservoir caps
while the 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.
■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.

4887-2. Steps to take in an emergency
1Stop the hybrid system. Shift
the shift lever to P and set the
parking brake.
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 lever 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.
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
WARNING
■When attempting to free a
stuck vehicle
If you choose to push the vehicle
back and forth to free it, make
sure the surrounding area is clear
to avoid striking other vehicles,
objects or people. The vehicle
may also lunge forward or lunge
back suddenly as it becomes free.
Use extreme caution.
■When shifting the shift lever
Be careful not to shift the shift
lever with the accelerator pedal
depressed.
This may lead to unexpected
rapid acceleration of the vehicle
that may cause an accident
resulting in death o r serious injury.
NOTICE
■To avoid damage to the
hybrid transmission and
other components
●Avoid spinning the front wheels
and depressing the accelerator
pedal more than necessary.
●If the vehicle remains stuck
even after these procedures are
performed, the vehicle may
require towing to be freed.