Toyota Tundra Hybrid (2023 year). Manual in english

192

4-1. Before driving

sway) increases as speed
increases. Exceeding speed
limits may cause loss of con-
trol.



Before starting out, check the
trailer lights, tires and the
vehicle-trailer connections.
Recheck after driving a short
distance.



Practice turning, stopping and
reversing with the trailer
attached in an area away
from traffic until you become
accustomed to the feel of the
vehicle-trailer combination.



Reversing with a trailer
attached is difficult and
requires practice. Grip the
bottom of the steering wheel
and move your hand to the
left to move the trailer to the
left. Move your hand to the
right to move the trailer to the
right. (This is generally oppo-
site to reversing without a
trailer attached.) Avoid sharp
or prolonged turning. Have
someone guide you when
reversing to reduce the risk of
an accident.



As stopping distance is
increased when towing a
trailer, vehicle-to-vehicle dis-
tance should be increased.
For each 10 mph (16 km/h) of
speed, allow at least one
vehicle and trailer length.



Avoid sudden braking as you
may skid, resulting in the

trailer jackknifing and a loss of
vehicle control. This is espe-
cially true on wet or slippery
surfaces.



Avoid jerky starts or sudden
acceleration.



Avoid jerky steering and
sharp turns, and slow down
before making a turn.



Note that when making a turn,
the trailer wheels will be
closer than the vehicle wheels
to the inside of the turn. Com-
pensate by making a wider
than normal turning radius.



Slow down before making a
turn, in crosswinds, on wet or
slippery surfaces, etc.
Increasing vehicle speed can
destabilize the trailer.



Take care when passing other
vehicles. Passing requires
considerable distance. After
passing a vehicle, do not for-
get the length of your trailer,
and be sure you have plenty
of room before changing
lanes.



Instability happens more fre-
quently when descending
steep or long downhill grades.
Before descending, slow
down and downshift. Do not
make sudden downshifts
while descending steep or
long downhill grades.



Avoid holding the brake pedal
down too long or applying the

193

4-1. Before driving

ing

brakes too frequently. This
could cause the brakes to
overheat and result in
reduced braking efficiency.



Due to the added load of the
trailer, your vehicle’s hybrid
system may overheat on hot
days (at temperatures over
85°F [30°C]) when driving up
a long or steep grade. If the
engine coolant temperature
gauge indicates overheating,
immediately turn off the air
conditioning (if in use), pull
your vehicle off the road and
stop in a safe spot. (



P.535)



Always place wheel blocks
under both the vehicle’s and
the trailer’s wheels when
parking. Apply the parking
brake firmly, and put the
transmission in P. Avoid park-
ing on a slope, but if unavoid-
able, do so only after
performing the following:

Apply the brakes and keep
them applied.

Have someone place wheel
blocks under both the vehi-
cle’s and trailer’s wheels.

When the wheel blocks are in
place, release the brakes
slowly until the blocks absorb
the load.

Apply the parking brake
firmly.

Shift into P and turn off the
hybrid system.



When restarting after parking
on a slope:

With the transmission in P,
start the hybrid system. Be
sure to keep the brake pedal
pressed.

Shift into a forward gear. If
reversing, shift into R.

If the parking brake is in man-
ual mode, release the park-
ing brake. (



P.205)

Release the brake pedal, and
slowly pull or back away from
the wheel blocks. Stop and
apply the brakes.

Have someone retrieve the
blocks.

■

Break-in schedule

If your vehicle is new or equipped

with any new power train compo-

nents (such as an engine, transmis-

sion, transfer [4WD models], rear

differential or wheel bearing), Toyota

recommends that you do not tow a

trailer until the vehicle has been

driven for over 500 miles (800 km).
After the vehicle has been driven for

over 500 miles (800 km), you can

start towing. However, for the next

500 miles (800 km), drive the vehi-

cle at a speed of less than 50 mph

(80 km/h) when towing a trailer, and

avoid full throttle acceleration.

■

Maintenance

●

If you tow a trailer, your vehicle

will require more frequent mainte-

nance due to the additional load.

(See “Owner’s Warranty Informa-

tion Booklet” or “Scheduled Main-

tenance Guide” / “Owner’s Manual

Supplement”.)

●

Retighten the fixing bolts of the

towing ball and bracket after

194

4-1. Before driving

approximately 600 miles (1000

km) of trailer towing.

■

If trailer sway occurs

One or more factors (crosswinds,

passing vehicles, rough roads, etc.)

can adversely affect handling of

your vehicle and trailer, causing

instability.

●

If trailer swaying occurs:

• Firmly grip the steering wheel.

Steer straight ahead. Do not try to

control trailer swaying by turning

the steering wheel.

• Begin releasing the accelerator

pedal immediately but very gradu-

ally to reduce speed. Do not

increase speed. Do not apply

vehicle brakes.

If you make no extreme correction

with the steering or brakes, your

vehicle and trailer should stabilize.

(if enabled, Trailer Sway Control can

also help to stabilize the vehicle and

trailer.)

●

After the trailer swaying has

stopped:

• Stop in a safe place. Get all occu-

pants out of the vehicle.

• Check the tires of the vehicle and

the trailer.

• Check the load in the trailer. Make

sure the load has not shifted.

Make sure the tongue weight is

appropriate, if possible.

• Check the load in the vehicle.

Make sure the vehicle is not over-

loaded after occupants get in.

If you cannot find any problems, the

speed at which trailer swaying

occurred is beyond the limit of your

particular vehicle-trailer combina-

tion. Drive at a lower speed to pre-

vent instability. Remember that

swaying of the towing vehicle-trailer

increases as speed increases.

Dinghy towing

Your vehicle is not designed
to be dinghy towed (with 4
wheels on the ground)
behind a motor home.

NOTICE

■

To avoid serious damage to

your vehicle

Do not tow your vehicle with the

four wheels on the ground.

195

4-2. Driving procedures

ing

4-2.Driving procedures

Pull the parking brake switch
to check that the parking
brake is set. (



P.205)

The parking brake indicator will

come on.

Check that the shift lever is in
P.

Firmly depress the brake
pedal.

and a message will be dis-

played on the multi-information dis-

play.

If it is not displayed, the hybrid sys-

tem cannot be started.

Press the power switch
shortly and firmly.

When operating the power switch,

one short, firm press is enough. It is

not necessary to press and hold the

switch.
If the “READY” indicator turns on,

the hybrid system will operate nor-

mally.
Continue depressing the brake

pedal until the “READY” indicator is

illuminated.
The hybrid system can be started

from any power switch mode.

Check that the “READY” indi-
cator is illuminated.

The vehicle cannot be driven if the

“READY” indicator is off.

■

If the hybrid system does not

start

●

The immobilizer system may not

have been deactivated. (



P.81)

Contact your Toyota dealer.

●

If a message related to start-up is

shown on the multi-information

display, read the message and fol-

low the instructions.

■

When the ambient temperature

is low, such as during winter

driving conditions

●

When starting the hybrid system,

the flashing time of the “READY”

indicator may be long. Leave the

vehicle as it is until the “READY”

indicator is steady on, as steady

means the vehicle is able to move.

●

When the hybrid battery (traction

battery) is extremely cold (below

approximately -31°F [-35°C])

under the influence of the outside

temperature, it may not be possi-

ble to start the hybrid system. In

this case, try to start the hybrid

system again after the tempera-

ture of the hybrid battery

increases due to the outside tem-

perature increase, etc.

●

When the outside temperature is

extremely cold, the hybrid system

may be started by starter motor.

Power (ignition)

switch

Performing the following
operations when carrying
the electronic key on your
person starts the hybrid
system or changes power
switch modes.

Starting the hybrid sys-
tem

196

4-2. Driving procedures

■

Starting the hybrid system by

starter motor

●

When the fuel lid is opened and

closed (such as re-fueling)

●

When the outside temperature is

extremely cold (the hybrid system

may be started by starter motor)

■

Sounds and vibrations specific

to a Hybrid Electric Vehicle



P.75

■

If the 12-volt battery is dis-

charged

The hybrid system cannot be started

using the smart key system. Refer

to P.529 to restart the hybrid sys-

tem.

■

Electronic key battery depletion



P.110

■

Conditions affecting operation



P.130

■

Notes for the entry function



P.130

■

If “Smart Key System Malfunc-

tion See Owner’s Manual” is

displayed on the multi-informa-

tion display

The system may be malfunctioning.

Have the vehicle inspected by your

Toyota dealer immediately.

■

When “Check Fuel Cap” is dis-

played on the multi-information

display



P.223

■

If the “READY” indicator does

not come on

In the event that the “READY” indi-

cator does not come on even after

performing the proper procedures

for starting the vehicle, contact your

Toyota dealer immediately.

■

If the hybrid system is malfunc-

tioning



P.511

■

Electronic key battery



P.484

■

Operation of the power switch

●

If the switch is not pressed shortly

and firmly, the power switch mode

may not change or the hybrid sys-

tem may not start.

●

If attempting to restart the hybrid

system immediately after turning

the power switch to OFF, the

hybrid system may not start in

some cases. After turning the

power switch to OFF, please wait

a few seconds before restarting

the hybrid system.

■

Customization

If the smart key system has been

deactivated in a customized setting,

refer to P.527.

WARNING

■

When starting the hybrid sys-

tem

Always start the hybrid system

while sitting in the driver’s seat.

Do not depress the accelerator

pedal while starting the hybrid

system under any circumstances.

Doing so may cause an accident

resulting in death or serious injury.

197

4-2. Driving procedures

ing

Stop the vehicle completely.

Set the parking brake
(



P.205), and shift the shift

lever to P.

Check the parking brake indicator

is illuminated.

Press the power switch
shortly and firmly.

The hybrid system will stop, and the

meter display will be extinguished.

Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the meter.

■

Automatic hybrid system shut

off feature

●

The vehicle is equipped with a

feature that automatically shuts off

the hybrid system when the shift

lever is in P with the hybrid system

operating for an extended period.

●

The hybrid system will automati-

cally shut off after approximately 1

hour if it has been left running

while the shift lever is in P.

●

The timer for the automatic hybrid

system shut off feature will reset if

the brake pedal is depressed or if

the shift lever is in a position other

than P.

●

After the vehicle is parked, if the

door is locked with the door lock

switch (



P.116) from the inside or

the mechanical key (



P.112) from

the outside, the automatic hybrid

system shut off feature will be dis-

abled. The timer for the automatic

hybrid system shut off feature will

be re-enabled if the driver’s door

is opened.

NOTICE

■

When starting the hybrid sys-

tem

If the hybrid system becomes diffi-

cult to start, have your vehicle

checked by your Toyota dealer

immediately.

■

Symptoms indicating a mal-

function with the power

switch

If the power switch seems to be

operating somewhat differently

than usual, such as the switch

sticking slightly, there may be a

malfunction. Contact your Toyota

dealer immediately.

Stopping the hybrid sys-
tem

WARNING

■

Stopping the hybrid system

in an emergency

●

If you want to stop the hybrid

system in an emergency while

driving the vehicle, press and

hold the power switch for more

than 2 seconds, or press it

briefly 3 times or more in suc-

cession. (



P.494)

However, do not touch the

power switch while driving

except in an emergency. Turn-

ing the hybrid system off while

driving will not cause loss of

steering or braking control, but

the power assist to these sys-

tems will be lost. This will make

it more difficult to steer and

brake, so you should pull over

and stop the vehicle as soon as

it is safe to do so.

●

If the power switch is operated

while the vehicle is running, a

warning message will be shown

on the multi-information display

and a buzzer sounds.

198

4-2. Driving procedures

Modes can be changed by
pressing the power switch with
the brake pedal released. (The
mode changes each time the
switch is pressed.)

“ACCESSORY”

“IGNITION ON”

OFF

The emergency flashers can be
used.
The multi-information display will
not be displayed.

ACC

Some electrical components such
as the audio system can be used.
“ACCESSORY” will be displayed
on the meter.

All electrical components can be
used.
“IGNITION ON” will be displayed on
the meter.

: If the shift lever is in a position

other than P when turning off the
hybrid system, the power switch
will be remained to ON, not to
OFF.

■

Auto power off function

If the vehicle is left in ACC for more

than 20 minutes or ON (the hybrid

system is not operating) for more

than an hour with the shift lever in P,

WARNING

●

To restart the hybrid system

after performing an emergency

shutdown, shift the shift lever to

N and then press the power

switch.

■

When parking

Exhaust gases include harmful

carbon monoxide (CO), which is

colorless and odorless. Observe

the following precautions.
Failure to do so may cause

exhaust gases to enter the vehicle

and may lead to an accident

caused by light-headedness, or

may lead to death or a serious

health hazard.

●

If the vehicle is in a poorly venti-

lated area or a closed area,

such as a garage, stop the

hybrid system.

●

Do not leave the vehicle with

the hybrid system operating for

a long time. If such a situation

cannot be avoided, park the

vehicle in an open space and

ensure that exhaust fumes do

not enter the vehicle interior.

●

Do not leave the hybrid system

operating in an area with snow

build-up, or where it is snowing.

If snowbanks build up around

the vehicle while the hybrid sys-

tem is operating, exhaust gases

may collect and enter the vehi-

cle.

Changing power switch
modes

199

4-2. Driving procedures

ing

the power switch will automatically

turn to OFF. However, this function

cannot entirely prevent the 12-volt

battery discharge. Do not leave the

vehicle with the power switch in

ACC or ON for long periods of time

when the hybrid system is not oper-

ating.

If the hybrid system is stopped
with the shift lever in a position
other than P, the power switch
will not be turned to OFF. Per-
form the following procedure to
turn the switch to OFF:

Check that the parking brake
is set.

Shift the shift lever to P.

Check that “IGNITION ON” is
displayed on the multi-infor-
mation display and press the
power switch shortly and
firmly.

Check that “ACCESSORY”
or “IGNITION ON” on the
multi-information display is
off.

NOTICE

■

To prevent 12-volt battery dis-

charge

●

Do not leave the power switch

in ACC or ON for long periods of

time without the hybrid system

on.

●

If “ACCESSORY” or “IGNITION

ON” is displayed on the meter,

the power switch is not off. Exit

the vehicle after turning the

power switch off.

When stopping the hybrid
system with the shift lever
in a position other than P

NOTICE

■

To prevent 12-volt battery dis-

charge

Do not stop the hybrid system

when the shift lever is in a position

other than P. If the hybrid system

is stopped in another shift lever

position, the power switch will not

be turned OFF and remained to

ON. If the vehicle is left in ON, 12-

volt battery discharge may occur.

200

4-2. Driving procedures

:Shifting to the D position allows

the system to select a gear suit-
able for the driving conditions.
Setting the shift lever to the D
position is recommended for nor-
mal driving.

:Selecting shift ranges using S

mode restricts the upper limit of
the possible gear ranges, con-
trols engine braking force, and
prevents unnecessary upshifting.

■

Driving on a downhill

On declines, there may be case

where the vehicle shifts down auto-

matically to obtain engine braking.

As a result of the downshifting, the

engine speed may increase.

■

To protect the automatic trans-

mission

●

If the tires spin continually when

the vehicle becomes stuck in mud,

dirt or snow, or if the accelerator

pedal is depressed and released

repeatedly while driving, the auto-

matic transmission temperature

may become too high and the

automatic transmission may be

damaged.

To avoid damaging the automatic

transmission, the system may

temporarily lock the gear. If the

automatic transmission tempera-

ture falls, the gear locking is can-

celed and the automatic

transmission is returned to the

normal operation.

●

If the automatic transmission fluid

temperature is high, “Transmis-

sion Oil Temp. High Stop in a Safe

Place and See Owner’s Manual”

will be displayed on the multi-

information display. Immediately

stop the vehicle in a safe place,

shift the shift lever to P and wait

until the warning message go off.

If the warning message go off, you

may start the vehicle again. If the

warning message do not go off,

contact your Toyota dealer.

■

When driving with dynamic

radar cruise control with full-

speed range activated

Even when performing the following

actions with the intent of enabling

engine braking, engine braking will

not activate because dynamic radar

cruise control with full-speed range

will not be canceled.

●

While driving in S mode, down-

shifting to 9, 8, 7, 6, 5 or 4.

(



P.202)

■

Restraining sudden start (Drive-

Start Control)



P.177

■

AI-SHIFT

The AI-SHIFT automatically selects

Automatic transmis-

sion

Select the shift position
depending on your pur-
pose and situation.

Shift position purpose
and functions

Shift posi-

tion

Objective or function

Parking the vehi-

cle/starting the hybrid

system

Reversing

Neutral (Condition in

which the power is not

transmitted)

Normal driving

S mode driving

(



P.202)

201

4-2. Driving procedures

ing

the suitable gear according to driver

operation and driving conditions.

AI-SHIFT automatically operates

when the shift lever is in D or S.

While the power switch is in

ON and the brake pedal
depressed

, shift the shift lever

while pushing the shift release
button on the shift knob.

Shift the shift lever while

pushing the shift release button
on the shift knob.

Shift the shift lever normally.

When shifting the shift lever
between P and D, make sure that
the vehicle is completely stopped.

: For the vehicle to be able to be

shifted from P, the brake pedal
must be depressed before the
shift release button is pushed. If
the shift release button is pushed
first, the shift lock will not be
released.

■

Shift lock system

The shift lock system is a system to

prevent accidental operation of the

shift lever in starting.

The shift lever can be shifted from P

only when the power switch is in

ON, the brake pedal is depressed

and the shift release button is

pushed.

■

If the shift lever cannot be

shifted from P

First, check whether the brake pedal

is being depressed.

If the shift lever cannot be shifted

even though the brake pedal is

depressed and the shift release but-

ton is pushed, there may be a prob-

lem with the shift lock system. Have

the vehicle inspected by your Toyota

dealer immediately.

The following steps may be used as

an emergency measure to ensure

that the shift lever can be shifted.
Releasing the shift lock:

Set the parking brake.

Turn the power switch off.

Depress the brake pedal.

Pry the cover up with a flathead

screwdriver or equivalent tool.

To prevent damage to the cover,

cover the tip of the screwdriver

with a rag.

WARNING

■

When driving on slippery

road surfaces

Do not accelerate or shift gears

suddenly.

Sudden changes in engine brak-

ing may cause the vehicle to spin

or skid, resulting in an accident.

Shifting the shift lever

202

4-2. Driving procedures

Press and hold the shift lock

override button and then push

the button on the shift knob.

The shift lever can be shifted

while both buttons are pressed.

■

Drive mode



P.358

When the shift lever is in the S
position, the shift lever can be
operated as follows:

Upshifting

Downshifting

The selected shift range, from S1 to
S10 will be displayed on the multi-
information display.
The initial shift range in S mode is
set automatically to 4, 5, 6, 7 or 8
according to vehicle speed.
However, the initial shift range may
be set to 4 if AI-SHIFT has oper-
ated while the shift lever was in the
D position. (



P.200)

■

S mode

●

You can choose from 10 levels of

accelerating force and engine

braking force.

●

A lower shift range will provide

greater accelerating force and

engine braking force than a higher

shift range, and the engine revolu-

tions will also increase.

●

To prevent the engine from over-

revving, upshifting may automati-

cally occur.

●

To protect the automatic transmis-

sion, a function is adopted that

automatically selects a higher shift

WARNING

■

To prevent an accident when

releasing the shift lock

Before pressing the shift lock

override button, make sure to set

the parking brake and depress the

brake pedal.

If the accelerator pedal is acci-

dentally depressed instead of the

brake pedal when the shift lock

override button is pressed and the

shift lever is shifted out of P, the

vehicle may suddenly start, possi-

bly leading to an accident result-

ing in death or serious injury.

Selecting the driving
mode

Changing shift ranges in
S mode

203

4-2. Driving procedures

ing

range when the fluid temperature

is high.

●

When the shift range is 9 or lower,

holding the shift lever toward “+”

sets the shift range to 10.

■

Downshifting restriction warn-

ing buzzer

To help ensure safety and driving

performance, downshifting opera-

tion may sometimes be restricted. In

some circumstances, downshifting

may not be possible even when the

shift lever is operated. (A buzzer will

sound twice.)

■

If the S indicator does not come

on even after shifting the shift

lever to S

This may indicate a malfunction in

the automatic transmission system.

Have the vehicle inspected by your

Toyota dealer immediately.

Use “TOW HAUL” or “TOW+”
mode when pulling a trailer or
hauling a heavy load. Activating
“TOW HAUL” or “TOW+” mode
is changes engine, transmis-
sion, and steering to be more
suitable when pulling a trailer.

“TOW HAUL” indicator

“TOW+” indicator

“TOW HAUL” switch

Mode select switch

Press the “TOW HAUL”
switch

The “TOW HAUL” indicator will

come on.
Press the switch once more to can-

cel the mode.

Turn the mode select switch
to change between “TOW
HAUL” or “TOW+” modes.

When more towing power is

needed than is available in “TOW

HAUL” mode, use “TOW+” mode.

(



P.204)

The “TOW+” indicator will come on.

■

Automatic deactivation of

“TOW HAUL” and “TOW+”

mode

“TOW HAUL” and “TOW+” mode is

deactivated the following conditions:

●

When the front-wheel drive control

switch is in “4L”

●

When driving mode select or

Multi-terrain Select (if equipped) is

“TOW HAUL” switch (if
equipped)

204

4-2. Driving procedures

selected

■

Differences with “TOW HAUL”

mode and “TOW+” mode

It is recommended to use each

mode according to the weight of the

trailer to be towed.

●

“TOW HAUL” mode is used when

towing trailers that weigh less than

5000 lb. (2268 kg).

●

“TOW+” mode is used when tow-

ing trailers that weigh more than

5000 lb. (2268 kg).

Right turn

Lane change to the right
(move the lever partway and
release it)

The right hand signals will flash 3
times.

Lane change to the left
(move the lever partway and
release it)

The left hand signals will flash 3
times.

Left turn

■

Turn signals can be operated

when

The power switch is in ON.

■

If the indicator flashes faster

than usual

Check that the front or rear turn sig-

nal lights has not burned out.

Turn signal lever

Operating instructions

205

4-2. Driving procedures

ing

■

If the turn signals stop flashing

before a lane change has been

performed

Operate the lever again.

■

Customization

Some functions can be customized.

(



P.561)

■

Using the manual mode

The parking brake can be set
and released manually.

U.S.A.

Canada

Pull the switch to set the
parking brake.

The parking brake indicator light
will turn on.
Pull and hold the parking brake

Parking brake

The parking brake can be
set or released automati-
cally or manually. In auto-
matic mode, the parking
brake can be set or released
automatically according to
shift lever operation.

Also, even in automatic
mode, the parking brake can
be set or released manually.

Operating instructions

206

4-2. Driving procedures

switch if an emergency occurs and
it is necessary to operate the park-
ing brake while driving.

Push the switch to release
the parking brake.

• Operate the parking brake switch

while depressing the brake pedal
or the accelerator pedal. When
using this function, slowly
depress the accelerator pedal.

• Parking brake automatic release

function (



P.207)

Make sure that the parking brake
indicator light turn off.

If the parking brake indicator
light flashes, operate the switch
again. (



P.506)

■

Turning the automatic
mode on

While the vehicle is stopped,
pull and hold the parking brake
switch until a buzzer sounds and
message is displayed on the
multi-information display.

“EPB Shift Interlock Function
Activated”

When the automatic mode is
turned on, the parking brake
operates as follows.



When the shift lever is shifted

from P, the parking brake will
be released, and the parking
brake indicator light will turn
off.



When the shift lever is shifted
to P, the parking brake will be
set, and the parking brake
indicator light will turn on.

Operate the shift lever with the
vehicle stopped and the brake
pedal depressed.

■

Turning the automatic
mode off

While the vehicle is stopped and
depressing the brake pedal,
press and hold the parking
brake switch until a buzzer
sounds and message is dis-
played on the multi-information
display.

“EPB Shift Interlock Function
Deactivated”

■

Parking brake operation

●

When the power switch is not in

ON, the parking brake cannot be

released using the parking brake

switch.

●

When the power switch is not in

ON, automatic mode (automatic

brake setting and releasing) is not

207

4-2. Driving procedures

ing

available.

■

Parking brake automatic

release function

The parking brake will be released

automatically when the accelerator

pedal is slowly depressed under the

following conditions:

●

The driver’s door is closed

●

The driver is wearing the seat belt

●

The shift lever is in a forward or

reverse position.

●

The malfunction indicator lamp or

brake system warning light is not

illuminated

If the automatic release function

does not operate, release the park-

ing brake manually.

■

Parking brake automatic lock

function

The parking brake will be set auto-

matically under the following condi-

tions:

●

The driver does not operate the

brake pedal

●

The driver’s door is not closed

●

The driver is not wearing the seat

belt

●

The shift lever position is not in P

or N

●

The malfunction indicator lamp or

brake system warning light is not

illuminated

■

If “Parking Brake Temporarily

Unavailable” is displayed on

the multi-information display

If the parking brake is operated

repeatedly over a short period of

time, the system may restrict opera-

tion to prevent overheating. If this

happens, refrain from operating the

parking brake. Normal operation will

return after about 1 minute.

■

If “Parking Brake Unavailable”

is displayed on the multi-infor-

mation display

Operate the parking brake switch. If

the message does not disappear

after operating the switch several

times, the system may be malfunc-

tioning. Have the vehicle inspected

by your Toyota dealer.

■

Parking brake operation sound

When the parking brake operates, a

motor sound (whirring sound) may

be heard. This does not indicate a

malfunction.

■

Parking brake indicator light

●

Depending on the power switch

mode, the parking brake indicator

light will turn on and stay on as

described below:

ON: Comes on until the parking

brake is released.

Not in ON: Stays on for approxi-

mately 15 seconds.

●

When the power switch is turned

to OFF with the parking brake set,

the parking brake indicator light

will stay on for about 15 seconds.

This does not indicate a malfunc-

tion.

■

When the parking brake switch

malfunctions

Automatic mode (automatic brake

setting and releasing) will be turned

on automatically.

■

Parking the vehicle



P.171

■

Parking brake engaged warning

buzzer

A buzzer will sound if the vehicle is

driven with the parking brake

engaged. “Parking Brake ON” is dis-

played on the multi-information dis-

play (with the vehicle reaching a

speed of 3 mph [5 km/h]).

■

If the brake system warning

light comes on



P.501

■

Usage in winter time



P.396

Toyota Tundra Hybrid (2023 year). Manual in english - page 12