2023 TOYOTA TUNDRA HYBRID lane assist

2494-5. Using the driving support systems
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4
Driving
played: Indicates that steering
wheel assist of the steering assist
function is operating.
Both outer sides of the lane are
flashing: Alerts the driver that their
input is necessary to stay in the
center of the lane (lane centering
function).
Follow-up cruising display
Displayed when the multi-informa-
tion display is switched to the driv-
ing support system information
screen.
Indicates that steering assist of the
lane centering function is operating
by monitoring the position of a pre-
ceding vehicle.
When the follow-up cruising display
is displayed, if the preceding vehi-
cle moves, your vehicle may move
in the same way. A lways pay care-
ful attention to your surroundings
and operate the steering wheel as
necessary to correct the path of the
vehicle and ensure safety.
Lane departure alert function
display
Displayed when the multi-informa-
tion display is switched to the driv-
ing support system information
screen.
Inside of displayed lines is
white Indicates that the system is rec-
ognizing white (yellow) lines
*.
When the vehicle departs from
its lane, the white line displayed
on the side the vehicle departs
from flashes orange.
Inside of displayed lines is
black
Indicates that the system is not
able to recognize white (yellow)
lines
* or is temporarily canceled.
*: May recognize the boundaries between the asphalt and the side
of the road, such as grass, soil, or
the curb, to be road lanes
■Operation conditions of each
function
●Lane departure alert function
This function operates when all of
the following conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.
*1
• System recognizes white (yellow) lane lines*2. (When a white [yel-
low] line*2 is recognized on only
one side, the system will operate
only for the recognized side.)
• Width of traffic lane is approxi- mately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
(Except when another vehicle is in
the lane on the side where the

2504-5. Using the driving support systems
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• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.252)
*1: The function opera tes even if the
vehicle speed is less than
approximately 32 mph (50 km/h)
when the lane centering function
is operating.
*2: May recognize the boundaries between the asphalt and the side
o f t he r oa d, su ch as gr as s, s oil, or
the curb, to be road lanes
●Steering assist function
This function oper ates when all of
the following conditions are met in
addition to the operation conditions
for the lane departure alert function.
• Vehicle is not accelerated or decelerated by a fixed amount or
more.
• Steering wheel is not operated with a steering force level suitable
for changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.251)
●Vehicle sway warning function
This function oper ates when all of
the following cond itions are met.
• Setting for “Sway Warning” in of the multi-information display is
set to “ON”. ( P.567)
• Vehicle speed is approximately 32
mph (50 km/h) or more.
• Width of traffic lane is approxi- mately 9.8 ft. ( 3 m) or more.
• No system malfunctions are
detected. ( P.252)
●Lane centering function
This function oper ates when all of
the following cond itions are met.
• LTA is turned on. • Setting for “Lane Center” in of
the multi-informatio n display is set
to “ON”. ( P.567)
• This function recognizes white
(yellow) lane lines or the position
of a preceding v ehicle (except
when the preceding vehicle is
small, such as a motorcycle).
• The dynamic radar cruise control with full-speed ran ge is operating
in vehicle-to-vehicle distance con-
trol mode.
• Width of traffic lane is approxi- mately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.252)
• Vehicle does not accelerate or
decelerate by a fixed amount or
more.
• Steering wheel is not operated
with a steering force level suitable
for changing lanes.
• ABS, VSC, TRAC and PCS are
not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.251)
• The vehicle is being driven in the center of a lane.
• Steering assist function is not operating.
• When your vehicle is not towing a
trailer or during emergency tow-
ing.
■Temporary cancelation of func-
tions
●When operation conditions are no
longer met, a function may be
temporarily canceled. However,
when the operation conditions are
met again, operation of the func-
tion is automatically restored.
( P.249)
●If the operation conditions
( P.249) are no longer met while
the lane centering function is
operating, the steering wheel may
vibrate and the buzzer may sound

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Driving
to indicate that the function has
been temporarily canceled. How-
ever, if the “Alert” customization
setting is set to , the system
will notify the driver by vibrating
the steering wheel instead of
sounding the buzzer.
■Steering assist function/lane
centering function
●Depending on the vehicle speed,
lane departure situation, road con-
ditions, etc., the driver may not
feel the function is operating or
the function may not operate at
all.
●The steering control of the func-
tion is overridden by the driver’s
steering wheel operation.
●Do not attempt to test the opera-
tion of the steering assist function.
■Lane departure alert function
●The warning buzzer may be diffi-
cult to hear due to external noise,
audio playback, etc. Also, it may
be difficult to feel steering wheel
vibrations due to the road condi-
tions, etc.
●It may not be possi ble for the sys-
tem to determine i f there is a dan-
ger of a collision with a vehicle in
an adjacent lane.
●Do not attempt to test the opera-
tion of the lane departure alert
function.
■Hands off steering wheel warn-
ing
In the following situations, a warning
message urging the driver to hold
the steering wheel and the symbol
shown in the illustration are dis-
played on the multi-information dis-
play to warn the driver. The warning
stops when the sys tem determines
that the driver holds the steering
wheel. Always keep your hands on
the steering wheel when using this
system, regardless of warnings.
●When the system determines that
the driver is driving without hold-
ing the steering wheel while the
system is operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned
and the function is temporarily can-
celed. This warning also operates in
the same way when the driver con-
tinuously operates the steering
wheel only a s mall amount.
The buzzer also sounds even if the
alert type is set to .
●When the system determines that
the vehicle may deviate from the
lane while driving around a curve
while the lane centering function is
operating.
Depending on the vehicle condition
and road conditions, the warning
may not operate. Also, if the system
determines that the vehicle is driv-
ing around a curve, warnings will
occur earlier than during straight-
lane driving.
●When the system determines that
the driver is driving without hold-
ing the steering wheel while the
steering wheel assi st of the steer-
ing assist function is operating.
If the driver continues to keep their
hands off of the steering wheel and
the steering wheel assist is operat-
ing, the buzzer sounds and the
driver is warned. Each time the
buzzer sounds, the continuing time

2674-5. Using the driving support systems
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Driving
trailer or another vehicle, except
when the followin g condition is
met.
• When the other vehicle is a trailer properly attached and connected
to Toyota’s official TBC ECU.
( P.181)
●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.
BSM (Blind Spot Moni-
tor)
The Blind Spot Monitor is a
system that uses rear side
radar sensors installed on
the inner side of the rear
bumper on the left and right
side to assist the driver for
lane changing decision.
WARNING
■Cautions regarding the use of
the system
The driver is solely responsible for
safe driving. Always drive safely,
taking care to observe your sur-
roundings.
The Blind Spot Monitor is a sup-
plementary function which alerts
the driver that a vehicle is in a
blind spot of the outside rear view
mirrors or is approaching rapidly
from behind into a blind spot. Do
not overly rely on the Blind Spot
Monitor. As the function cannot
judge if it is safe to change lanes,
over reliance could lead to an
accident resulting in death or seri-
ous injury.
As the system may not function
correctly under certain condi-
tions, the driver’s own visual con-
firmation of safety is necessary.

2704-5. Using the driving support systems
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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

2744-5. Using the driving support systems
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• When the distanc e between your
vehicle and a guardr ail, wall, etc.,
that enters the detection area is
short
• When driving up and down con-
secutive steep inclines, such as
hills, dips in the road, etc.
• When vehicle lanes are narrow, or
when driving on the edge of a
lane, and a vehicle traveling in a
lane other than the adjacent lanes
enters the detection area
• When driving on roads with sharp bends, consecutive curves, or
uneven surfaces
• When the tires are slipping or spinning
• When the distanc e between your
vehicle and a following vehicle is
short
• When an accessory (such as a bicycle carrier) is installed to the
rear of the vehicle
• When turning at an intersection with a trailer is being towed and
an adjacent vehicle continues
traveling straight
■Types of sensors
Front corner sensors
Front center sensors
Rear corner sensors
Rear center sensors
■Display
When the sensors detect an
object, such as a wall, a graphic
is shown on the multi-informa-
tion display and/or multimedia
Intuitive parking
assist
The distance from your
vehicle to objects, such as a
wall, when parallel parking
or maneuvering into a
garage is measured by the
sensors and communi-
cated via the multi-informa-
tion display and/or
multimedia display and a
buzzer. Always check the
surrounding area when
using this system.
System components

3774-5. Using the driving support systems
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Driving
●The accelerator pedal is
depressed a large amount
WARNING
■The ABS does not operate
effectively when
●The limits of tire gripping perfor-
mance have been exceeded
(such as excessively worn tires
on a snow covered road).
●The vehicle hydroplanes while
driving at high speed on wet or
slick roads.
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the vehicle in front of
you, especially in the following sit-
uations:
●When driving on d irt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where stability and power
may be lost.
■Hill-start assist control does
not operate effectively when
●Do not overly rely on hill-start
assist control. Hill-start assist
control may not operate effec-
tively on steep inclines and
roads covered with ice.
●Unlike the parking brake, hill-
start assist control is not
intended to hold the vehicle sta-
tionary for an extended period
of time. Do not attempt to use
hill-start assist control to hold
the vehicle on an incline, as
doing so may lead to an acci-
dent.
■When the TRAC/VSC/Trailer
Sway Control is activated
The slip indicator light flashes.
Always drive carefully. Reckless
driving may cause an accident.
Exercise particula r care when the
indicator light flashes.
■When the TRAC/VSC/Trailer
Sway Control systems are
turned off
Be especially careful and drive at
a speed appropriate to the road
conditions. As these are the sys-
tems to help ensure vehicle stabil-
ity and driving force, do not turn
the TRAC/VSC/Trailer Sway Con-
trol systems off unless necessary.
Trailer Sway Control is part of the
VSC system and will not operate
if VSC is turned off or experiences
a malfunction.

3944-6. Driving tips
Owners Manual_USA_M0C052_en
Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
Have a service technician
inspect the condition of the
12-volt battery.
 Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the rear
tires
*.
*: Tire chains cannot be mounted
on 285/65R18 tires.
Ensure that all tires are the same
size and brand, and that chains
match the size of the tires.
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
●4WD models: Do not mix tires of
different makes, models, tread
patterns or treadwear.
■Driving with tire chains (vehi-
cles without 285/65R18 tires)
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden engine braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use LTA (Lane Tracing
Assist) (if equipped) system.