2023 TOYOTA TUNDRA HYBRID brake

2594-5. Using the driving support systems
Owners Manual_USA_M0C052_en
4
Driving
This mode employs a radar to detect the presence of vehicles up to
approximately 328 ft. (100 m) ahead, determines the current veh icle-
to-vehicle following distance, and operates to maintain a suitable fol-
lowing distance from the vehicle ahead. The desired vehicle-to- vehi-
cle distance can also be set by operating the vehicle-to-vehicl e
distance switch.
When driving on downhill slopes, t he vehicle-to-vehicle distance may
become shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration crui sing and follow-up cruising
When a preceding vehicle driving slower than the set speed
appears
When a vehicle is detected runni ng ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle s peed is nec-
essary, the system applies the brakes (the stop lights will come on at this
time). The system will respond to changes in the speed of the vehicle
ahead in order to maintain the vehicle-to-vehicle distance set by the driver.
Approach warning warns you when the system cannot decelerate suffi-
ciently to prevent your vehicle from closing in on the vehicle ahead.
When the vehicle ahead of you st ops, your vehicle will also stop (vehicle is
stopped by system control). Afte r the vehicle ahead starts off, pressing the
“+RES” switch or depressing the accelerator pedal (start-off operation) will
resume follow-up cruising. If the start-off operation is not pe rformed, system
Driving in vehicle-to-vehicle distance control mode

2634-5. Using the driving support systems
Owners Manual_USA_M0C052_en
4
Driving
Resume”
1 Pressing the cancel switch
cancels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
(When the vehicle has been
stopped by system control,
depressing the brake pedal does
not cancel the setting.)
2Pressing the “+RES” switch
resumes the cruise control
and returns vehicle speed to
the set speed.
When your vehicle is too close
to a vehicle ahead, and suffi-
cient automatic deceleration via
the cruise control is not possi-
ble, the display will flash and the
buzzer will sound to alert the
driver. An example of this would
be if another driver cuts in front
of you while you are following a
vehicle. Depress the brake pedal to ensure an appropriate
vehicle-to-vehicle distance.
■Warnings may not occur
when
In the following instances, warn-
ings may not occur even when
the vehicle-to-vehicle distance is
small.
 When the speed of the pre-
ceding vehicle matches or
exceeds your vehicle speed
 When the preceding vehicle is
traveling at an extremely slow
speed
 Immediately after the cruise
control speed was set
 When depressing the acceler-
ator pedal
When constant speed control
mode is selected, your vehicle
will maintain a set speed without
controlling the vehicle-to-vehi-
cle distance. Select this mode
only when vehicle- to-vehicle dis-
tance control mode does not
function correctly due to a dirty
Canceling and resuming
the speed control
Approach warning (vehi-
cle-to-vehicle distance
control mode)
Selecting constant speed
control mode

2654-5. Using the driving support systems
Owners Manual_USA_M0C052_en
4
Driving
■Automatic cancelation of vehi-
cle-to-vehicle d istance control
mode
Vehicle-to-vehicle distance control
mode is automatically canceled in
the following situations.
●VSC is activated.
●TRAC is activated for a period of
time.
●When the VSC or TRAC system is
turned off.
●The sensor cannot detect cor-
rectly because i t is covered in
some way.
●When the brake control or output
restriction control of a driving sup-
port system operates. (For exam-
ple: Pre-Collision System, Drive-
Start Control)
●The center differential lock/unlock
is not completed within 5 seconds
while the cruise con trol system is
on.
●The parking brake is operated.
●The vehicle is stopped by system
control on a steep incline.
●The following are detected when
the vehicle has been stopped by
system control:
• The driver is not wearing a seat belt.
• The driver’s door is opened.
• The vehicle has been stopped for
about 3 minutes.
If vehicle-to-vehicle distance control
mode is automatically canceled for
any reasons other than the above,
there may be a malfunction in the
system. Contact your Toyota dealer.
■Automatic cancelation of con-
stant speed control mode
Constant speed control mode is
automatically cance led in the follow-
ing situations:
●Actual vehicle speed is more than
approximately 10 mph (16 km/h)
below the set vehicle speed.
●Actual vehicle speed falls below approximately 20 mph (30 km/h).
●VSC is activated.
●TRAC is activated for a period of
time.
●When the VSC or TRAC system is
turned off.
●When the brake control or output
restriction control of a driving sup-
port system operates. (For exam-
ple: Pre-Collision System, Drive-
Start Control)
●The center differe
ntial lock/unlock
is not completed within 5 seconds
while the cruise control system is
on.
●The parking brake is operated.
If constant speed control mode is
automatically canceled for any rea-
sons other than the above, there
may be a malfunction in the system.
Contact your Toyota dealer.
■Brake operation
A brake operation sound may be
heard and the brake pedal response
may change, but these are not mal-
functions.
■Warning messages and buzzers
for dynamic radar cruise con-
trol with full-speed range
Warning messages and buzzers are
used to indicate a system malfunc-
tion or to inform the driver of the
need for caution while driving. If a
warning message is shown on the
multi-information display, read the
message and follow the instruc-
tions.( P.228, 511)
■When the sensor may not be
correctly detecting the vehicle
ahead
In the case of the following and
depending on the conditions, oper-
ate the brake pedal when decelera-
tion of the system is insufficient or
operate the accelerator pedal when
acceleration is required.
As the sensor may not be able to
correctly detect th ese types of vehi-

2664-5. Using the driving support systems
Owners Manual_USA_M0C052_encles, the approach warning
(
 P.263) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends
(trailers with no load on board,
etc.)
●Motorcycles traveling in the same
lane
●When water or snow thrown up by
the surrounding vehicles hinders
the detecting of the sensor
●When your vehicle is pointing
upwards (caused by a heavy load
in the luggage compartment, etc.)
●Preceding vehicle has an
extremely high ground clearance
●When the vehicle is towing a
trailer or during emergency tow-
ing.
●When the vehicle is lifted up,
except in the following cases.
• When using a Toyota official lift kit
up to 4 in. (101 mm), including tire
height. Aftermarket lift kits may
degrade system performance.
■Conditions under which the
vehicle-to-vehic le distance con-
trol mode may not function cor-
rectly
In the case of the following condi-
tions, operate the brake pedal (or
accelerator pedal, depending on the
situation) as necessary.
As the sensor may not be able to
correctly detect vehicles ahead, the
system may not operate properly.
●When the road curves or when the
lanes are narrow
●When steering wheel operation or
your position in the lane is unsta-
ble
●When the vehicle ahead of you
decelerates suddenly
●When driving on a road sur-
rounded by a structure, such as in
a tunnel or on a bridge
●While the vehicle speed is
decreasing to the set speed after
the vehicle accelerates by
depressing the accelerator pedal
●When your vehicles is towing a

2704-5. Using the driving support systems
Owners Manual_USA_M0C052_en
2Press or to select
“Trailer Settings” and then
press and hold .
3 According to the display,
select the desired setting and
then press . ( P.100)
■Auto Trailer Detection (ATD)
Auto Trailer Detect ion (ATD) detects
if a trailer is attached by using the
Trailer Brake Controller (TBC) or the
Blind Spot Monitor (BSM) sensors.
●Trailers that use TBC can be
detected by using the 7-pin trailer
brake connectors.
●Other types of trailers can be
detected using the BSM sensors.
●When a trailer is detected via BSM
or TBC, RCTA function will be dis-
abled.
●As soon as the tra iler is detected,
the detectio n area will be
extended to a maximum length of
approximately 16 ft. (15 m) from
the rear bumper of the truck.
●If the trailer does not have a 7-pin
connector, or the 7-pin connector
is not engaged, the trailer is
detected via the BSM sensor. In
this case PKSB and Intuitive park-
ing assist functi ons will not be dis-
abled.
●For trailer auto detection without engagement of 7-pin connector,
the vehicle should be moving for-
ward at speed of above 0.6 mph
(1 km/h) for at l
east 10 seconds.
●ATD function is triggered at every
power switch on/of f cycle or if the
vehicle is stopped in shift the shift
lever is in P or N for more than 90
seconds.
●Trailer detection vis BSM sensors
may be delayed if the vehicle is in
a crowded environment such as
busy parking lot, area surrounded
with trees (camping ground) or in
an environment with objects in the
immediate environment that pre-
vent sensors from sufficiently
detecting the trailer.
■Trailer Length Detection (TLD)
●Once a trailer is detected and if
the trailer length in the meter is
selected as “Auto”, the TLD func-
tion will estimate the trailer length
using the Blind Spot Monitor sen-
sors.
In order to estimate the trailer length
with TLD function and detection
area, make at least two 90 degree
turns.
If the trailer length is entered manu-
ally via multi-information display
input, the detection area is also
adjusted to exceed the length of the
trailer.
●Depending on some trailer types
and the dimensions of the trailer
TMW performance may be
degraded.
■Vehicles that can be detected by the Blind Spot Monitor
The Blind Spot Monitor uses rear side radar sensors to detect the fol-
lowing vehicles traveling in adjacent lanes and advises the dri ver of
the presence of such vehicles v ia the indicators on the outside rear
view mirrors.
 When not towing a trailer
Blind Spot Monitor operation

2774-5. Using the driving support systems
Owners Manual_USA_M0C052_en
4
Driving
over the sensor surface, such as in
a heavy rain. When the system
determines that it is normal, the sys-
tem will return to normal.
■Sensor detection information
●The sensor’s detection areas are
limited to the areas around the
vehicle’ front and rear bumpers.
●The following situations may occur
during use.
• Depending on the shape of the
object and other factors, the
detection distance may shorten, or
detection may be impossible.
• Detection may be impossible if static objects draw too close to the
sensor.
• There will be a short delay
between static object detection
and display (warning buzzer
sounds). Even at low speeds,
there is a possibilit y that the object
will come within 11.9 in. (30 cm)
before the display is shown and
the warning buzzer sounds.
• It might be difficult to hear the
buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be difficult to hear the sound of this system due to the
buzzers of other systems.
■Objects which the system may
not be properly 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
■Situations in which the system
may not operate properly
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, water drops or
ice on a sensor. (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,
or objects, such as a wall, may not
be detected.
●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.
●When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle
●A sensor is coated with a sheet of
spray or heavy rain.
●If objects draw too close to the
sensor.
●When a pedestrian is wearing
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the vehicle traveling
direction, uneven, or waving are in
the detection range.
●Strong wind is blowing
●When driving in inclement weather

2784-5. Using the driving support systems
Owners Manual_USA_M0C052_ensuch as fog, snow or a sandstorm
●When an object that cannot be
detected is betw
een the vehicle
and a detected object
●If an object such as a vehicle,
motorcycle, bicycle or pedestrian
cuts in front of the vehicle or runs
out from the side of the vehicle
●If the orientation of a sensor has
been changed due t o a collision or
other impact
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additi onal trim strip,
etc.), bicycle carrier, or snow plow
●If the front of the vehicle is raised
or lowered due to the carried load
●If the vehicle cannot be driven in a
stable manner, such as when the
vehicle has been in an accident or
is malfunctioning
●When a tire chains, compact
spare tire or an emergency tire
puncture repair kit is used
●When the tailgate is opened
■Situations in which the system
may operate even if there is no
possibility of a collision
In some situations, such as the fol-
lowing, the system may operate
even though there is no possibility of
a collision.
●When driving on a narrow road
●When driving toward a banner,
flag, low-hanging branch or boom
barrier (such as those used at rail-
road crossings, toll gates and
parking lots)
●When there is a ru t or hole in the
surface of the road
●When driving on a metal cover
(grating), such as those used for
drainage ditches
●When driving up or down a steep
slope
●If a sensor is hit by a large amount
of water, such as when driving on
a flooded road
●There is dirt, snow, water drops or
ice on a sensor. (Cleaning the
sensors will resolve this problem.)
●A sensor is coated with a sheet of
spray or heavy rain
●When driving in inclement weather
such as fog, snow or a sandstorm
●When strong winds are blowing
●When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle
●If the front of the v ehicle is raised
or lowered due to the carried load
●If the orientation of a sensor has
been changed due to a collision or
other impact
●The vehicle is approaching a tall
or curved curb
●Driving close to columns (H-
shaped steel beams, etc.) in multi-
story parking garages, construc-
tion sites, etc.
●If the vehicle cannot be driven in a
stable manner, such as when the
vehicle has been in an accident or
is malfunctioning

2844-5. Using the driving support systems
Owners Manual_USA_M0C052_en
■The RCTA function is opera-
tional when
The RCTA function operates when
all of the followin g conditions are
met:
●The power switch is in ON.
●The RCTA function is on.
●The shift position 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 17 mph (28 km/h).
●The 7-pin connector for Trailer
Brake controller is not engaged. (if
equipped)
■Adjusting the buzzer volume
The buzzer volume can be adjusted
on the multi-information display.
Use the meter control switches to
change settings. ( P. 9 6 )
1 Press or of the meter
control switch to select .
2 Press or of the meter
control switch to select “RCTA”
and then press and hold .
3 Press to select the volume.
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-informatio n display when a
vehicles or an object is detected. To
mute the buzzer, press .
The buzzers for the RCTA function
and intuitive par king assist will be
muted simultaneously.
Mute will be cancele d automatically
in the following situations:
●When the shift lever is changed.
●When the vehicle speed exceeds
a certain speed.
●When there is a malfunction in a
sensor or the system is temporar-
ily unavailable.
●When the operati ng function is
disabled manually.
●When the power switch is turned
off.
■Conditions under which the
system 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
●Guardrails, walls, signs, parked
vehicles and similar stationary
objects
*
●Small motorcycles, bicycles,
pedestrians, etc.*
●Vehicles moving away from your
Approach-
ing vehicleSpeed

Approxi-
mate alert distance
Fast17 mph
(28 km/h)66 ft. (20 m)
Slow5 mph (8 km/h)18 ft. (5.5 m)