engine TOYOTA HIGHLANDER 2021 Owners Manual (in English)

2754-5. Using the driving support systems
4
Driving
HIGHLANDER_Uin the following situations: (To
enable the engine to be stopped
by the Stop & Start system again,
drive the vehicle.)
• When the brake pedal is pumped or strongly depressed.
• When the air conditioning system is being used.
• When a switch of the air condition-
ing system is operated (windshield
defogger switch, etc.).
• If the battery charge becomes low.
■When the hood is opened
●If the hood is opened while the
engine is stopped by the Stop &
Start system, the engine will stall
and will not be able to be restarted
by the automatic engine start
function. In this case, restart the
engine using the normal engine
starting procedure. ( P.202)
●If the hood is closed after the
engine is started with the hood
open, the Stop & Start system will
not operate. Close the hood, turn
the engine switch off, wait 30 sec-
onds or more, and then start the
engine.
■Air conditioning system opera-
tion while the engine is stopped
by the Stop & Start system
Vehicles with an automatic air con-
ditioning system: When the air con-
ditioning is in automatic mode and
the engine is stopped by the Stop &
Start system, the fan may operate at
a low speed in order to prevent the
temperature in the cabin from
increasing or decreasing or may be
stopped.
To prioritize air conditioning system
performance when the vehicle is
stopped, disable the Stop & Start
system by pressing the Stop & Start
cancel switch.
●If the windshield is fogged up
Turn the windshield defogger on.
(  P.341)
If the windshield fogs up frequently,
press the Stop & Start cancel switch to disable the Stop & Start system.
●If an odor is emitted from the air
conditioning system
• Vehicles with a manual air condi- tioning system
If the idling stop time setting is set to
“Extended” change it to “Standard”.
If an odor is emitted when the idling
stop time setting is set to “Stan-
dard”, press the Stop & Start cancel
switch to deactivate the Stop & Start
system.
• Vehicles with a n automatic air
conditioning system
Press the Stop & Start cancel switch
to deactivate the Stop & Start sys-
tem.
■Changing the idling stop time
with the air conditioning system
on
The length of time the Stop & Start
system will operate when the air
conditioning system is on can be
changed in of th e multi-informa-
tion display ( P.89, 98). (The length
of time the Stop & Start system will
operate when the a ir conditioning
system is off cann ot be changed.)
■Displaying the Stop & Start sys-
tem status
 P.89, 98
■Multi-information display mes-
sages
If the following situations, and a
message may be displayed on the
multi-information display.
●When the engine cannot be
stopped by the Stop & Start sys-
tem “Press brake mo re to activate”
• The brake pedal is not sufficiently depressed.
 If the brake pedal is depressed
further, the system will operate.

2764-5. Using the driving support systems
HIGHLANDER_U “Non-Dedicated Battery”
• A battery not designed for use with a Stop & Start system may
have been installed.
 Have the vehicl e inspected by
your Toyota dealer.
“Battery Charging”
• The battery charge may be low.
 Stopping of the engine is tempo-
rarily prohibited to prioritize charging
of the battery. After the engine runs
for a certain amount of time, the sys-
tem will be enabled.
• A refresh charge may be occur- ring
 After a refresh charge for up to
an hour completes, the system can
be operated.
• If displayed continuously for a long time (more than an hour)
 The battery may b e deteriorated.
Contact your Toyota dealer for
details.
“Stop & Start System Unavail-
able”
• The Stop & Start system is tempo- rarily disabled.
 Allow the engine to run for some
time.
• The engine may have been started with the hood open.
 Close the hood , turn the engine
switch off, wait for 30 seconds or
more, and then start the engine.
“In Preparation”
• The vehicle is being driven in a high altitude area.
• The brake booster vacuum is low.
 When the brake booster vacuum
reaches a predetermined level, the
system will be enabled. “For Climate Control”
• The air conditioning system is being used when the ambient
temperature is high or low.
 If the difference between the set
temperature and cabin temperature
becomes small, the system will be
enabled.
• The windshield defogger is on.
●When the engine automatically
restarts while stopped by the Stop
& Start system
“In Preparation”
• The brake pedal has been depressed further or pumped.
 The system will be enabled after
the engine runs and the brake
booster vacuum reaches a predeter-
mined level.
“For Climate Control”
• The air conditioning system has been turned on o r is being used.
• The windshield defogger has been turned on.
“Battery Charging”
• The battery charge may be low.
 The system will be enabled after
the engine runs to sufficiently
charge the battery.
■When the buzzer sounds
If the driver’s door is opened when
the engine is stopped by the Stop &
Start system and the shift lever is in
D, a buzzer will soun d and the Stop
& Start system indicator will flash. To
stop the buzzer, c lose the driver’s
door.
■The Stop & Start system protec-
tion function
●When the volume of the audio
system is excessively high, sound
output from the audio system may
suddenly be cut off in order to

2774-5. Using the driving support systems
4
Driving
HIGHLANDER_Ureduce battery consumption. To
prevent the audio system from
being cut off, keep the volume of
audio system at a moderate level.
If the audio system has been cut
off, turn the engine switch off, wait
for 3 seconds or more and then
turn it to ACC or ON to re-enable
the audio system.
●The audio system may not be acti-
vated if the battery terminals are
disconnected an
d then recon-
nected. If this o ccurs, turn the
engine switch off and then repeat
the following operation twice to
activate the audio system nor-
mally.
• Turn the engine s witch to ON and
then to OFF.
■Replacing the battery
 P. 4 9 3
■If the Stop & Start cancel indica-
tor flashes continuously
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■If “Stop & Start System Mal-
function Visit Your Dealer” is
displayed on the multi-informa-
tion display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
WARNING
■When the Stop & Start system
is operating
Make sure to dis able the Stop &
Start system while the vehicle is in
a poorly ventilated area. If not dis-
abled, the engine may be auto-
matically restarted unexpectedly,
causing exhaust gases to collect
and enter the vehicle, possibly
resulting in death or a serious
health hazard.
●Do not leave the vehicle while
the engine is stopped by the
Stop & Start system (while the
Stop & Start indicator is on). An
accident may occur due to the
automatic engine start function.
●Depress the brake pedal and
apply the parking brake when
necessary while the engine is
stopped by the Stop & Start sys-
tem (while the Stop & Start indi-
cator is on).
NOTICE
■To ensure the system oper-
ates correctly
If any of the follo wing situations
occur, the Stop & Start system
may not operate correctly. Have
your vehicle inspected by your
Toyota dealer.
●While the driver’s seat belt is
fastened, the driver’s and front
passenger’s seat belt reminder
light flashes.
●Even though the driver’s seat
belt is not fastened, the driver’s
and front passenger’s seat belt
reminder light does not illumi-
nate.
●Even though the driver’s door is
closed, the open door warning
light is illuminated or the interior
light is illumina ted when the
interior light switch is in the door
position.
●Even though the driver’s door is
open, the open door warning
light does not illu minate or the
interior light doe s not illuminate
when the interior light switch is
in the door position.

2854-5. Using the driving support systems
4
Driving
HIGHLANDER_U
equipped) and audio system
screen depending on the posi-
tion and distance to the object.
Multi-information display and
head-up display
Front corner sensor detection
Front center sensor detection
Rear corner sensor detection
Rear center sensor detection
 Audio system screen (vehi-
cles with a Toyota parking
assist monitor)
When the R shift lever is selected,
a simplified image is displayed on
the audio system screen.
Audio system screen (vehi-
cles with a Panoramic view
monitor)
A graphic will be displayed on the
audio system screen.
Use the meter control switches
to enable/disable the intuitive
parking assist. ( P.98)
1 Press or to select .
2 Press or to select
and then press .
When the intuitive parking assist
function is disabled, the intuitive
parking assist OFF indicator
( P.78) illuminates.
To re-enable the system, select on the multi-information dis-
play, select and turn it on. If
the system is disabled, it will
remain off even if the engine
switch is turned to ON after the
engine switch has been turned
off.
Turning intuitive parking
assist on/off

2874-5. Using the driving support systems
4
Driving
HIGHLANDER_U
■The system can be operated
when
●The engine switch is in ON.
●Intuitive parking assist function is
on.
●The vehicle speed is less than
about 6 mph (10 km/h).
●A shift lever other than P.
■If “Parking Assist Unavailable”
is displayed on the multi-infor-
mation display
●Water may be continuously flow-
ing over the sensor surface, such
as in a heavy rain. When the sys-
tem determines that it is normal,
the system will return to normal.
●Initialization may not have been
performed after a battery terminal
was disconnected and recon-
nected. Initialize the system.
(  P.287) If this message contin-
ues to be displayed even after ini-
tialization, have the vehicle
inspected by you r Toyota dealer.
■If “Parking Assist Unavailable
Clean Parking Assist Sensor” is
displayed on the multi-informa-
tion display
A sensor may be covered with ice,
snow, dirt, etc. Remove the ice,
snow, dirt, etc., from the sensor to
return the system to normal.
Also, due to ice forming on a sensor
at low temperatures, a warning
message may be displayed or the
sensor may not be able to detect an
object. Once the ice melts, the sys-
tem will return to normal.
■If a battery terminal has been
disconnected and reconnected
The system needs to be initialized.
To initialize the system, drive the
vehicle straight ahead for 5 seconds
or more at a speed of approximately
22 mph (35 km/h) or more.
■Sensor detection information
●The following situations may occur
during use.
• The sensor's detec tion areas are
limited to the areas around the
vehicle front and rear bumpers.
• Depending on the shape of the
object and other factors, the
detection distance may shorten, or
detection may be impossible.
• If an object is extremely close to a sensor, it may not be detected.
• There will be a short delay
between object detection and dis-
play. Even at low speeds, there is
a possibility that the object will
come within the sensor’s detec-
tion areas before the display is
shown and the warning beep
sounds.
• It might be diffic ult to hear the
buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be diffi cult to hear the
buzzer if buzzers for other sys-
tems are sounding.
■Conditions under which the
function may not function cor-
rectly
Certain vehicle conditions and the
surrounding environment may affect
the ability of a sensor to correctly
detect objects. Part icular instances
where this may occur are listed
below.
●There is dirt, snow or ice on a sen-
sor. (Cleaning the sensors will
resolve this problem.)
●A sensor is froz en. (Thawing the
area will resolve this problem.)
In especially cold weather, if a
sensor is frozen the sensor dis-
play may be displayed abnormally,
WARNING
●When using steam to clean the
vehicle, do not direct steam too
close to the sensors as doing so
may cause a sens or to malfunc-
tion.

2884-5. Using the driving support systems
HIGHLANDER_Uor objects, such as a wall, may not
be detected.
●A sensor is covered in any way.
●When a sensor or the area around
a sensor is extremely hot or cold.
●On an extremely bumpy road, on
an incline, on gravel, or on grass.
●The vicinity of the vehicle is noisy
due to vehicle horns, motorcycle
engines, air brakes of large vehi-
cles, or other l
oud noises produc-
ing ultrasonic waves.
●There is another vehicle equipped
with parking assist sensors in the
vicinity.
●A sensor is coated with a sheet of
spray or heavy rain.
●If a sensor is hit by a large amount
of water, such as when driving on
a flooded road.
●If the vehicle is sig nificantly tilted.
●The vehicle is approaching a tall
or curved curb.
●If objects draw too close to the
sensor.
■Objects which may not be prop-
erly detected
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular attention to the follow-
ing objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials
that absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections
projecting outwards in the direc-
tion of your vehicle
People may not be detected if they
are wearing certain types of cloth-
ing.
■Adjusting the buzzer vol-
ume
The buzzer volume can be
adjusted on the multi-informa-
tion display.
Use the meter control switches
to change settings. ( P.98)
1 Press or to select .
2 Press or to select and
then press and hold .
3 Select the volume and then
press .
Each time the switch is pressed,
the volume level will change
between 1, 2, and 3.
■Muting a buzzer temporarily
A mute button will be displayed
on the multi-information display
when an object is detected. To
mute the buzzer, press .
Mute will be canceled automati-
cally in the following situations:
 When the shift lever is
changed.
 When the vehicle speed
exceeds a certain speed.
 When there is malfunction in
a sensor or the system is tem-
porarily unavailable.
 When the operating function
is disabled manually.
 When the engine switch is
turned off.
Setting the buzzer volume

2934-5. Using the driving support systems
4
Driving
HIGHLANDER_Umulti-information
display. (Each
time the engine switch is turned off
then changed to ON, the RCTA
function will be enabled automati-
cally.)
■Outside rear view mirror indica-
tor visibility
In strong sunlight, the outside rear
view mirror indicato r may be difficult
to see.
■Hearing the RCTA buzzer
The RCTA buzzer may be difficult to
hear over loud noises, such as if the
audio system volume is high.
■When “Rear Cross Traffic Alert
Unavailable” is shown on the
multi-information display
Water, ice, snow, mud, etc., may be
attached to the rear bumper around the sensors. (
P.280) Removing
the water, ice, snow, mud, etc., from
the attached to the rear bumper
around the sensors to return the
function to normal.
Additionally, the function may not
operate normally when driving in
extremely hot or cold environments.
■Rear side radar sensors
 P.280
■Adjusting the buzzer vol-
ume
The buzzer volume can be
adjusted on the multi-informa-
tion display.
4.2-inch display
Use the meter control switches
to change settings. ( P.89)
1 Press or to select .
2 Press or to select
“RCTA” and then press and
hold .
3 Select the volume and then
press .
Each time the switch is pressed,
the volume level will change
between 1, 2, and 3.
7-inch display
Use the meter control switches
to change settings. ( P.98)
1 Press or to select .
2 Press or to select and
“RCTA” then press and hold
.
WARNING
■Cautions regarding the use of
the function
The driver is solely responsible for
safe driving. Always drive safely,
taking care to o bserve your sur-
roundings.
The RCTA functi on is only a sup-
plementary function which alerts
the driver tha t a vehicle is
approaching from the right or left
at the rear of the vehicle. As the
RCTA function may not function
correctly under certain condi-
tions, the driver’s own visual con-
firmation of safety is necessary.
Over reliance on this function may
lead to an accident resulting
death or serious injury.
NOTICE
■Before using the RCTA func-
tion
Do not place objects near the sen-
sors.
Setting the buzzer volume
(vehicles with a Intuitive
parking assist)

2944-5. Using the driving support systems
HIGHLANDER_U
3Select the volume and then
press .
Each time the switch is pressed,
the volume lev el will change
between 1, 2, and 3.
■Muting a buzzer temporarily
A mute button will be displayed
on the multi-information display
when an object is detected. To
mute the buzzer, press .
Mute will be canceled automati-
cally in the following situations: 
When the shift lever is
changed.
 When the vehicle speed
exceeds a certain speed.
 When the operating function
is temporarily canceled.
 When the operating function
is disabled manually.
 When the engine switch is
turned off.
■Operation of the RCTA function
The RCTA function uses rear side radar sensors to detect vehicles
approaching from the right or left at the rear of the vehicle a nd alerts
the driver of the presence of such vehicles by flashing the out side
rear view mirror indicators and sounding a buzzer.
Approaching vehicles
Detection areas of approaching vehicles
■RCTA icon display
When a vehicle approaching
from the right or left at the rear
of the vehicle is detected, the
following will be displayed on
the audio system screen.
 Example (Toyota parking assist monitor) (if equipped):
Vehicles are approaching
from both sides of the vehicle
RCTA function

2954-5. Using the driving support systems
4
Driving
HIGHLANDER_U
Example (Panoramic view
monitor) (if equipped): Vehi- cles are approaching from
both sides of the vehicle
■RCTA function detection areas
The areas that vehicles can be detected in are outlined below.
The buzzer can alert the driver
of faster vehicles approaching
from farther away.
Example:
■The RCTA function is opera-
tional when
The RCTA function operates when
all of the followin g conditions are
met:
●The engine swit ch is in ON.
●The RCTA function is on.
●The shift lever is in R.
●The vehicle speed is less than
approximately 5 mph (8 km/h).
●The approaching vehicle speed is
between approximately 5 mph (8
km/h) and 18 mph (28 km/h).
■Conditions under which the
RCTA function will not detect a
vehicle
The RCTA function is not designed
to detect the follo wing types of vehi-
cles and/or objects:
●Vehicles approaching from directly
behind
●Vehicles backing up in a parking
space next to your vehicle
●Vehicles that the sensors cannot
detect due to obstructions
Approaching
vehicle speed Approximate
alert distance
18 mph (28
km/h) (fast)65 ft. (20 m)
5 mph (8 km/h) (slow)18 ft. (5.5 m)

2964-5. Using the driving support systems
HIGHLANDER_U
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
vehicle
●Vehicles approaching from the
parking spaces next to your vehi-
cle
*
*
: Depending on the conditions, detection of a vehicle and/or
object may occur.
■Conditions under which the
RCTA function may not function
correctly
●The RCTA function may not detect
vehicles correctly in the following
situations:
• When a sensor is misaligned due
to a strong impact to the sensor or
its surrounding area
• When mud, snow, ice, a sticker, etc. is covering a sensor or its sur-
rounding area on the rear bumper
• When driving on a road surface that is wet with standing water
during bad weather, such as
heavy rain, snow, or fog
• When multiple vehicles are
approaching with only a small gap
between each vehicle
• If a vehicle is approaching the rear
of your vehicle rapidly
• When a towing eyelet is installed to the rear of the vehicle.
• When backing up on a slope with
a sharp change in grade • When backing out of a shallow
angle parking spot
• Immediately after the RCTA func- tion is turned on
• Immediately after the engine is started with the RCTA function on
• When the sensors cannot detect a
vehicle due to obstructions
●Instances of the RCTA function
unnecessarily detecting a vehicle
and/or object may increase in the
following situations:
• When a vehicle passes by the side of your vehicle
• When the parking space faces a
street and vehicles are being
driven on the street