Toyota Tundra Hybrid (2023 year). Manual in english

224

4-4. Refueling

■

When “Check Fuel Cap” is dis-

played on the multi-information

display

The fuel tank cap may be unfas-

tened or loose. Turn the power

switch to OFF, check the cap and

tighten it securely. If the message

remains, wait a few seconds and

then turn the power switch to OFF

once again.

WARNING

■

When replacing the fuel tank

cap

Do not use anything but a genu-

ine Toyota fuel tank cap designed

for your vehicle. Doing so may

cause a fire or other incident

which may result in death or seri-

ous injury.

■

When Opening the fuel tank

cap

Depending on the driving condi-

tions of the vehicle before refuel-

ing, it may take some time to

reduce the pressure in the tank.

Unless there is an actual emer-

gency, do not use the emergency

release lever to open the fuel door

and then open the fuel tank cap.

Doing so may cause fuel to spray

out from the fuel filler opening.

225

4-5. Using the driving support systems

ing

4-5.Using the driving support systems

■

PCS (Pre-Collision System)



P.230

■

LTA (Lane Tracing Assist)



P.242

■

AHB (Automatic High
Beam)



P.214

■

RSA (Road Sign Assist)



P.253

: If equipped

■

Dynamic radar cruise con-
trol with full-speed range



P.256

Two types of sensors, located
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist
systems.

Radar sensor

Front camera

Toyota Safety Sense

2.5

The Toyota Safety Sense 2.5
consists of the following
drive assist systems and
contributes to a safe and
comfortable driving experi-
ence:

Driving assist system

WARNING

■

Toyota Safety Sense 2.5

The Toyota Safety Sense 2.5 is

designed to operate under the

assumption that the driver will

drive safely, and is designed to

help reduce the impact to the

occupants and the vehicle in the

case of a collision or assist the

driver in normal driving condi-

tions.
As there is a limit to the degree of

recognition accuracy and control

performance that this system can

provide, do not overly rely on this

system. The driver is always

responsible for paying attention to

the vehicle’s surroundings and

driving safely.

Sensors

226

4-5. Using the driving support systems

WARNING

■

To avoid malfunction of the

radar sensor

Observe the following precau-

tions.
Otherwise, the radar sensor may

not operate properly, possibly

leading to an accident resulting in

death or serious injury.

●

Keep the radar sensor and the

radar sensor cover clean at all

times.

Radar sensor

Radar sensor cover

If the front of the radar sensor or
the front or back of the radar sen-
sor cover is dirty or covered with
water droplets, snow, etc., clean
it.
Clean the radar sensor and radar
sensor cover with a soft cloth to
avoid damaging them.

●

Do not attach accessories,

stickers (including transparent

stickers) or other items to the

radar sensor, radar sensor

cover or surrounding area.

●

Do not subject the radar sensor

or its surrounding area to a

strong impact.

If the radar sensor, front grille,

or front bumper has been sub-

jected to a strong impact, have

the vehicle inspected by your

Toyota dealer.

●

Do not disassemble the radar

sensor.

●

Do not modify or paint the radar

sensor or radar sensor cover.

●

In the following cases, the radar

sensor must be recalibrated.

Contact your Toyota dealer for

details.

• When the radar sensor or front

grille are removed and installed,

or replaced

• When the front bumper is

replaced

■

To avoid malfunction of the

front camera

Observe the following precau-

tions.
Otherwise, the front camera may

not operate properly, possibly

leading to an accident resulting in

death or serious injury.

●

Keep the windshield clean at all

times.

• If the windshield is dirty or cov-

ered with an oily film, water

droplets, snow, etc., clean the

windshield.

• If a glass coating agent is

applied to the windshield, it will

still be necessary to use the

windshield wipers to remove

water droplets, etc., from the

area of the windshield in front of

the front camera.

• If the inner side of the wind-

shield where the front camera is

installed is dirty, contact your

Toyota dealer.

227

4-5. Using the driving support systems

ing

■

Certification



P.612

WARNING

●

Do not attach objects, such as

stickers, transparent stickers,

etc., to the outer side of the

windshield in front of the front

camera (shaded area in the

illustration).

From the top of the windshield
to approximately 0.4 in. (1 cm)
below the bottom of the front
camera

Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm]
to the right and left from the
center of the front camera)

●

If the part of the windshield in

front of the front camera is

fogged up or covered with con-

densation or ice, use the wind-

shield defogger to remove the

fog, condensation or ice.

(



P.401)

●

If water droplets cannot be

properly removed from the area

of the windshield in front of the

front camera by the windshield

wipers, replace the wiper insert

or wiper blade.

●

Do not attach window tint to the

windshield.

●

Replace the windshield if it is

damaged or cracked.

After replacing the windshield,

the front camera must be recali-

brated. Contact your Toyota

dealer for details.

●

Do not allow liquids to contact

the front camera.

●

Do not allow bright lights to

shine into the front camera.

●

Do not dirty or damage the front

camera.

When cleaning the inside of the

windshield, do not allow glass

cleaner to contact the lens of

the front camera. Also, do not

touch the lens.

If the lens is dirty or damaged,

contact your Toyota dealer.

●

Do not subject the front camera

to a strong impact.

●

Do not change the installation

position or direction of the front

camera or remove it.

●

Do not disassemble the front

camera.

●

Do not modify any components

of the vehicle around the front

camera (inside rear view mirror,

etc.) or ceiling.

●

Do not attach any accessories

to the hood, front grille or front

bumper that may obstruct the

front camera. Contact your Toy-

ota dealer for details.

●

If a surfboard or other long

object is to be mounted on the

roof, make sure that it will not

obstruct the front camera.

●

Do not modify the headlights or

other lights.

228

4-5. Using the driving support systems

■

If a warning message is displayed on the multi-information display

A system may be temporarily unavailable or there may be a malfunction in

the system.

●

In the following situations, perform the actions specified in the table. When

the normal operating conditions are detected, the message will disappear

and the system will become operational.

If the message does not disappear, contact your Toyota dealer.

●

In the following situations, if the situation has changed (or the vehicle has

been driven for some time) and the normal operating conditions are

detected, the message will disappear and the system will become opera-

tional.

If the message does not disappear, contact your Toyota dealer.

Situation

Actions

When the area around a camera is
covered with dirt, moisture (fogged
up, covered with condensation, ice,
etc.), or other foreign matter

Using the wiper and A/C function,
remove the dirt and other attached
matter. (



P.401)

When the temperature around the
front camera is outside of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely
cold environment

If the front camera is hot, such as
after the vehicle had been parked in
the sun, use the air conditioning sys-
tem to decrease the temperature
around the front camera.
If a sunshade was used when the
vehicle was parked, depending on its
type, the sunlight reflected from the
surface of the sunshade may cause
the temperature of the front camera
to become excessively high.

If the front camera is cold, such after
the vehicle is parked in an extremely
cold environment, use the air condi-
tioning system to increase the tem-
perature around the front camera.

The area in front of the front camera
is obstructed, such as when the
hood is open or a sticker is attached
to the part of the windshield in front
of the front camera.

Close the hood, remove the sticker,
etc., to clear the obstruction.

When “Pre-Collision System Radar
In Self Calibration Unavailable See
Owner’s Manual” is displayed.

Check whether there is attached
materials on the radar sensor and
radar sensor cover, and if there is,
remove it.

230

4-5. Using the driving support systems

The system can detect the fol-
lowing (The detectable objects
differs depending on the func-
tion.):



Vehicles



Bicyclists



Pedestrians

■

Pre-collision warning

When the system determines
that the possibility of a frontal
collision is high, a buzzer will
sound and a warning message
will be displayed on the multi-
information display to urge the
driver to take evasive action.

“BRAKE!”

■

Pre-collision brake assist

When the system determines
that the possibility of a frontal
collision is high, the system
applies greater braking force in
relation to how strongly the
brake pedal is depressed.

■

Pre-collision braking

If the system determines that
the possibility of a frontal colli-
sion is extremely high, the
brakes are automatically applied
to help avoid the collision or
reduce the impact of the colli-
sion.

PCS (Pre-Collision Sys-

tem)

The pre-collision system
uses a radar sensor and
front camera to detect
objects (



P.230) in front of

the vehicle. When the sys-
tem determines that the
possibility of a frontal colli-
sion with an object is high, a
warning operates to urge
the driver to take evasive
action and the potential
brake pressure is increased
to help the driver avoid the
collision. If the system
determines that the possi-
bility of a frontal collision
with an object is extremely
high, the brakes are auto-
matically applied to help
avoid the collision or help
reduce the impact of the col-
lision.

The pre-collision system can
be disabled/enabled and the
warning timing can be
changed. (



P.234)

Detectable objects

System functions

231

4-5. Using the driving support systems

ing

■

Emergency steering assist

If the system determines that
the possibility of a collision with
a pedestrian is high and that
there is sufficient space for the
vehicle to be steered into within
its lane, and the driver has
begun evasive maneuver or
steering, emergency steering
assist will assist the steering
movements to help enhance the
vehicle stability and for lane
departure prevention. During
operation, the indicator will illu-
minate in green.

■

Intersection right/left turn
assistance

If the system determines that
there is a high possibility of a
collision in the following situa-
tions, it will assist with Pre-colli-
sion warning and, if necessary
Pre-collision braking.
Depending on the configuration
of the intersection, it may not be
possible to support.



When you turn right/left at an
intersection and cross the
path of an oncoming vehicle



When you turn right/left,
pedestrian is detected in the
forward direction and esti-
mated to enter your vehicle’s
path (bicyclists are not
detected.)

■

Suspension control (vehi-
cles with Adaptive Variable
Suspension System)

When the system determines
that the possibility of a frontal
collision is high, the Adaptive
Variable Suspension System
(



P.375) will control the damp-

ing force of the shock absorbers
to help maintain an appropriate
vehicle posture.

232

4-5. Using the driving support systems

WARNING

■

Limitations of the pre-colli-

sion system

●

The driver is solely responsible

for safe driving. Always drive

safely, taking care to observe

your surroundings.

Do not use the pre-collision sys-

tem instead of normal braking

operations under any circum-

stances. This system will not

prevent collisions or lessen col-

lision damage or injury in every

situation. Do not overly rely on

this system. Failure to do so

may lead to an accident, result-

ing in death or serious injury.

●

Although this system is

designed to help avoid a colli-

sion or help reduce the impact

of the collision, its effectiveness

may change according to vari-

ous conditions, therefore the

system may not always be able

to achieve the same level of

performance.

Read the following conditions

carefully. Do not overly rely on

this system and always drive

carefully.

• Conditions under which the sys-

tem may operate even if there is

no possibility of a collision:



P.237

• Conditions under which the sys-

tem may not operate properly:



P.239

●

Do not attempt to test the oper-

ation of the pre-collision system

yourself.

Depending on the objects used

for testing (dummies, card-

board objects imitating detect-

able objects, etc.), the system

may not operate properly, possi-

bly leading to an accident.

■

Pre-collision braking

●

When the pre-collision braking

function is operating, a large

amount of braking force will be

applied.

●

If the vehicle is stopped by the

operation of the pre-collision

braking function, the pre-colli-

sion braking function operation

will be canceled after approxi-

mately 2 seconds. Depress the

brake pedal as necessary.

●

The pre-collision braking func-

tion may not operate if certain

operations are performed by the

driver. If the accelerator pedal is

being depressed strongly or the

steering wheel is being turned,

the system may determine that

the driver is taking evasive

action and possibly prevent the

pre-collision braking function

from operating.

●

In some situations, while the

pre-collision braking function is

operating, operation of the func-

tion may be canceled if the

accelerator pedal is depressed

strongly or the steering wheel is

turned and the system deter-

mines that the driver is taking

evasive action.

●

If the brake pedal is being

depressed, the system may

determine that the driver is tak-

ing evasive action and possibly

delay the operation timing of the

pre-collision braking function.

■

Emergency steering assist

●

As emergency steering assist

operation will be canceled when

the system determines that lane

departure prevention function

has been completed.

233

4-5. Using the driving support systems

ing

WARNING

●

Emergency steering assist may

not operate or may be cancel in

the following cases as the sys-

tem may determine the driver is

taking actions.

• If the accelerator pedal is being

depressed strongly, the steering

wheel is being operated sharply,

the brake pedal is being

depressed or the turn signal

lever is being operated. In this

case, the system may deter-

mine that the driver is taking

evasive action and the emer-

gency steering assist may not

operate.

• The emergency steering assist

will be disabled automatically

when the system judges that a

trailer is connected.

• In some situations, while the

emergency steering assist is

operating, operation of the func-

tion may be canceled if the

accelerator pedal is depressed

strongly, the steering wheel is

operated sharply or the brake

pedal is being depressed and

the system determines that the

driver is taking evasive action.

• When the emergency steering

assist is operating, if the steer-

ing wheel is held firmly or is

operated in the opposite direc-

tion to that which the system is

generating torque, the function

may be canceled.

■

When to disable the pre-colli-

sion system

In the following situations, disable

the system, as it may not operate

properly, possibly leading to an

accident resulting in death or seri-

ous injury:

●

When the vehicle is being towed

●

When your vehicles is towing a

trailer or another vehicle, except

when the following conditions

are all met

• When the other vehicle is a

trailer properly attached and

connected to Toyota’s official

TBC ECU. (



P.181)

• When the vehicle is not being

driven on a slippery surface

such as an icy road or a very

wet road.

●

When transporting the vehicle

via truck, boat, train or similar

means of transportation

●

When the vehicle is raised on a

lift with the hybrid system on

and the tires are allowed to

rotate freely

●

When inspecting the vehicle

using a drum tester such as a

chassis dynamometer or speed-

ometer tester, or when using an

on vehicle wheel balancer

●

When a strong impact is applied

to the front bumper or front

grille, due to an accident or

other reasons

●

If the vehicle cannot be driven in

a stable manner, such as when

the vehicle has been in an acci-

dent or is malfunctioning

●

When the vehicle is driven in a

sporty manner or off-road

●

When the tires are not properly

inflated

●

When the tires are very worn

●

When tires of a size other than

specified are installed

●

When tire chains are installed

●

When a compact spare tire or

an emergency tire puncture

repair kit is used

234

4-5. Using the driving support systems

■

Enabling/disabling the pre-
collision system

The pre-collision system can be
enabled/disabled on

(



P.567) of the multi-informa-

tion display.

The system is automatically
enabled each time the power
switch is turned to ON.

If the system is disabled, the
PCS warning light will turn on
and a message will be displayed
on the multi-information display.

“Pre-Collision System OFF”

■

Changing the pre-collision
warning timing

The pre-collision warning timing
can be changed on

(



P.567) of the multi-informa-

tion display.

The warning timing setting is
retained when the power switch is
turned off. However, if the pre-colli-
sion system is disabled and re-
enabled, the operation timing will
return to the default setting (mid-
dle).

If the pre-collision warning tim-
ing is changed, emergency
steering assist timing will also
be changed accordingly.
If late is selected, emergency
steering assist would not oper-
ate in case of an emergency.

Early

Middle

This is the default setting.

Late

WARNING

●

If equipment (snow plow, etc.)

that may obstruct the radar sen-

sor or front camera is temporar-

ily installed to the vehicle

●

When the vehicle is lifted up,

except in the following cases

• When using a Toyota official lift

kit up to 4 in. (101 mm), includ-

ing tire height. Aftermarket lift

kits may degrade system perfor-

mance.

Changing settings of the
pre-collision system

235

4-5. Using the driving support systems

ing

■

Operational conditions for each pre-collision function

The pre-collision system is enabled and the system determines that the pos-

sibility of a frontal collision with a detected object is high.
The system may not operate in the following situations:
• If a 12-volt battery terminal has been disconnected and reconnected and

then the vehicle has not been driven for a certain amount of time

• If the shift lever is in R
• When the VSC OFF indicator is illuminated (only the pre-collision warning

function will be operational)

The operation speeds and operation cancelation for each function is listed

below.

●

Pre-collision warning

While the pre-collision warning function is operating, if the steering wheel is

operated heavily or suddenly, the pre-collision warning may be canceled.

●

Pre-collision brake assist

●

Pre-collision braking

If either of the following occur while the pre-collision braking function is oper-

ating, it will be canceled:
• The accelerator pedal is depressed strongly.

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 7 to 110 mph
(10 to 180 km/h)

Bicyclists and pedestri-
ans

Approx. 7 to 50 mph (10
to 80 km/h)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 20 to 110 mph
(30 to 180 km/h)

Bicyclists and pedestri-
ans

Approx. 20 to 50 mph
(30 to 80 km/h)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Vehicles

Approx. 7 to 110 mph
(10 to 180 km/h)

Bicyclists and pedestri-
ans

Approx. 7 to 50 mph (10
to 80 km/h)

236

4-5. Using the driving support systems

• The steering wheel is turned sharply or abruptly.

●

Emergency steering assist

When the turn signal lights are flashing, emergency steering assist will not
operate in case of an emergency.
The emergency steering assist will be disabled automatically when the sys-
tem judges that a trailer is connected.

If any of the following occur while the emergency steering assist function is

operating, it will be canceled:
• The accelerator pedal is depressed strongly.
• The steering wheel is turned sharply or abruptly.
• The brake pedal is depressed.

●

Intersection right/left turn assistance (pre-collision warning)

When the turn signal lights are not flashing, support for turning left or right at
an intersection which targets oncoming vehicles does not work.
When the system judges that a trailer is detected, intersection support is dis-
abled for vehicles and pedestrians.

●

Intersection right/left turn assistance (pre-collision braking)

Detectable objects

Vehicle speed

Relative speed between

your vehicle and object

Pedestrians

Approx. 31 to 50 mph

(50 to 80 km/h)

Approx. 31 to 50 mph

(50 to 80 km/h)

Detect-

able

objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Vehicles

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 20 to 35

mph (30 to 55 km/h)

Approx. 25 to 50

mph (40 to 80 km/h)

Pedestri-

ans

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 7 to 15 mph

(10 to 25 km/h)

237

4-5. Using the driving support systems

ing

■

Object detection function

The system detects objects based

on their size, profile, motion, etc.

However, an object may not be

detected depending on the sur-

rounding brightness and the motion,

posture, and angle of the detected

object, preventing the system from

operating properly. (



P.239)

The illustration shows an image of

detectable objects.

■

Conditions under which the

system may operate even if

there is no possibility of a colli-

sion

●

In some situations such as the fol-

lowing, the system may determine

that there is a possibility of a fron-

tal collision and operate.

• When passing a detectable object,

etc.

• When changing lanes while over-

taking a detectable object, etc.

• When approaching a detectable

object in an adjacent lane or on

the roadside, such as when

changing the course of travel or

driving on a winding road

• When rapidly closing on a detect-

able object, etc.

• When approaching objects on the

roadside, such as detectable

objects, guardrails, utility poles,

trees, or walls

• When there is a detectable object

or other object by the roadside at

the entrance of a curve

• When there are patterns or paint

in front of your vehicle that may be

mistaken for a detectable object

• When the front of your vehicle is

hit by water, snow, dust, etc.

• When overtaking a detectable

object that is changing lanes or

making a right/left turn

Detect-

able

objects

Vehicle speed

Oncoming vehicle

speed

Relative speed

between your vehi-

cle and object

Vehicles

Approx. 10 to 15

mph (15 to 25 km/h)

Approx. 20 to 28

mph (30 to 45 km/h)

Approx. 28 to 43

mph (45 to 70 km/h)

Pedestri-

ans

Approx. 7 to 15 mph

(10 to 25 km/h)

Approx. 7 to 15 mph

(10 to 25 km/h)

238

4-5. Using the driving support systems

• When passing a detectable object

in an oncoming lane that is

stopped to make a right/left turn

• When a detectable object

approaches very close and then

stops before entering the path of

your vehicle

• If the front of your vehicle is raised

or lowered, such as when on an

uneven or undulating road surface

• When driving on a road sur-

rounded by a structure, such as in

a tunnel or on an iron bridge

• When there is a metal object

(manhole cover, steel plate, etc.),

steps, or a protrusion in front of

your vehicle

• When passing under an object

(road sign, billboard, etc.)

• When approaching an electric toll

gate barrier, parking area barrier,

or other barrier that opens and

closes

• When using an automatic car

wash

• When driving through or under

objects that may contact your

vehicle, such as thick grass, tree

branches, or a banner

• When driving through steam or

smoke

• When driving near an object that

reflects radio waves, such as a

large truck or guardrail

• When driving near a TV tower,

broadcasting station, electric

power plant, radar equipped vehi-

cles, etc., or other location where

strong radio waves or electrical

noise may be present

• When there are many things

which can reflect the radio waves

of the radar in the vicinity (tunnels,

truss bridges, gravel roads, snow

covered road that have tracks,

etc.)

• While making a right/left turn,

when an oncoming vehicle or a

crossing pedestrian has already

exited the path of your vehicle

• While making a right/left turn,

closely in front of an oncoming

vehicle or a crossing pedestrian.

• While making a right/left turn,

when an oncoming vehicle or a

crossing pedestrian stops before

entering the path of your vehicle

• While making a right/left turn,

when an oncoming vehicle turns

right/left in front of your vehicle

• While steering into the direction of

239

4-5. Using the driving support systems

ing

oncoming traffic

• When the vehicle is lifted up using

an aftermarket lift kit

• When the vehicle is lifted up more

than 4 in. (101 mm)

■

Situations in which the system

may not operate properly

●

In some situations such as the fol-

lowing, an object may not be

detected by the radar sensor and

front camera, preventing the sys-

tem from operating properly:

• When a detectable object is

approaching your vehicle

• When your vehicle or a detectable

object is wobbling

• If a detectable object makes an

abrupt maneuver (such as sudden

swerving, acceleration or deceler-

ation)

• When your vehicle approaches a

detectable object rapidly

• When a detectable object is not

directly in front of your vehicle

• When a detectable object is near

a wall, fence, guardrail, manhole

cover, vehicle, steel plate on the

road, etc.

• When a detectable object is under

a structure

• When part of a detectable object

is hidden by an object, such as

large baggage, an umbrella, or

guardrail

• When there are many things

which can reflect the radio waves

of the radar in the vicinity (tunnels,

truss bridges, gravel roads, snow

covered road that have tracks,

etc.)

• When there is an effect on the

radio waves to the radar that is

installed on another vehicle

• When multiple detectable objects

are close together

• If the sun or other light is shining

directly on a detectable object

• When a detectable object is a

shade of white and looks

extremely bright

• When a detectable object appears

to be nearly the same color or

brightness as its surroundings

• If a detectable object cuts or sud-

denly emerges in front of your

vehicle

• When the front of your vehicle is

hit by water, snow, dust, etc.

• When a very bright light ahead,

such as the sun or the headlights

of oncoming traffic, shines directly

into the front camera

• When approaching the side or

front of a vehicle ahead

• If a vehicle ahead is a motorcycle

• If a vehicle ahead is narrow, such

as a personal mobility vehicle

• If a preceding vehicle has a small

rear end, such as an unloaded

truck

• If a preceding vehicle has a low

rear end, such as a low bed trailer

• If a vehicle ahead has extremely

high ground clearance

• If a vehicle ahead is carrying a

load which protrudes past its rear

bumper

• If a vehicle ahead is irregularly

Toyota Tundra Hybrid (2023 year). Manual in english - page 14