Toyota Tundra (2023 year). Manual in english

175

4-1. Before driving

ing

4-1.Before driving

■

Starting the engine



P.202

■

Driving

With the brake pedal
depressed, shift the shift
lever to D.

If the parking brake is set,
release the parking brake.
(



P.211)

If the parking brake is in automatic

mode, the parking brake is release

automatically when shifting the shift

lever to any position other than P.

(



P.212)

Gradually release the brake
pedal and gently depress the
accelerator pedal to acceler-
ate the vehicle.

■

Stopping

With the shift lever in D,
depress the brake pedal.

If the Stop & Start system is

enabled, depressing the brake

pedal will stop the engine.

(



P.275)

If necessary, set the parking
brake.

If the vehicle is to be stopped for an

extended period of time, shift the

shift lever to P. (



P.206)

■

Parking the vehicle

With the shift lever in D,
depress the brake pedal to
stop the vehicle completely.

Set the parking brake
(



P.211), and shift the shift

lever to P. (



P.206)

Check the parking brake indicator

is illuminated.

Turn the engine switch to
OFF to stop the engine.

Lock the door, making sure
that you have the electronic
key on your person.

If parking on a hill, block the wheels

as needed.

■

Starting off on a steep
uphill

With the brake pedal
depressed, shift the shift
lever to D.

The hill-start assist control will be

activated.

Pull the parking brake switch
and parking brake is set man-
ually. (



P.211)

Release the brake pedal and
gently depress the accelera-
tor pedal to accelerate the
vehicle.

Press the parking brake
switch and parking brake is
released manually. (



P.211)

Parking brake automatic release

function. (



P.213)

■

Driving in the rain

●

Drive carefully when it is raining,

because visibility will be reduced,

Driving the vehicle

The following procedures
should be observed to
ensure safe driving:

Driving procedure

176

4-1. Before driving

the windows may become fogged-

up, and the road will be slippery.

●

Drive carefully when it starts to

rain, because the road surface will

be especially slippery.

●

Refrain from high speeds when

driving on an expressway in the

rain, because there may be a

layer of water between the tires

and the road surface, preventing

the steering and brakes from

operating properly.

■

Engine speed while driving

In the following conditions, the

engine speed may become high

while driving.
This is due to automatic up-shifting

control or down-shifting implementa-

tion to meet driving conditions. It

does not indicate sudden accelera-

tion.

●

The vehicle is judged to be driving

uphill or downhill

●

When the accelerator pedal is

released

●

When the brake pedal is

depressed while “TOW HAUL”

mode or “TOW+” mode is selected

(if equipped)

■

Restraining the engine output

(Brake Override System)

●

When the accelerator and brake

pedals are depressed at the same

time, the engine output may be

restrained.

●

A warning message is displayed

on the multi-information display

while the system is operating.

(



P.515)

■

Breaking in your new Toyota

To extend the life of the vehicle,

observing the following precautions

is recommended:

●

For the first 200 miles (300 km):

Avoid sudden stops.

●

For the first 500 miles (800 km):

Do not tow a trailer.

●

For the first 1000 miles (1600 km):

• Do not drive at extremely high

speeds.

• Avoid sudden acceleration.

• Do not drive continuously in low

gears.

• Do not drive at a constant speed

for extended periods.

■

Operating your vehicle in a for-

eign country

Comply with the relevant vehicle

registration laws and confirm the

availability of the correct fuel.

(



P.549)

■

Idling time before engine stop

To prevent damage to the turbo-

charger, allow the engine to idle

immediately after high-speed driving

or hill climbing.
To allow the engine to idle when the

vehicle is stopped, disable the Stop

& Start cancel switch. (



P.276)

(With the Stop & Start system

enabled, the engine will be stopped

by the Stop & Start system when the

vehicle is stopped.)

Driving condition

Idling time

Normal city driving Not necessary

High-speed driv-

ing (Constant

speed of approx.

50 mph [80 km/h])

Not necessary

Steep hill driving or

continuous driving

at 62 mph (100

km/h) or more

(race track driving,

etc.)

Approximately

1 minute

WARNING

Observe the following precau-

tions.

Failure to do so may result in

death or serious injury.

177

4-1. Before driving

ing

WARNING

■

When starting the vehicle

Always keep your foot on the

brake pedal while stopped with

the engine running. This prevents

the vehicle from creeping.

■

When driving the vehicle

●

Do not drive if you are unfamil-

iar with the location of the brake

and accelerator pedals to avoid

depressing the wrong pedal.

• Accidentally depressing the

accelerator pedal instead of the

brake pedal will result in sudden

acceleration that may lead to an

accident.

• When backing up, you may twist

your body around, leading to dif-

ficulty in operating the pedals.

Make sure to operate the pedals

properly.

• Make sure to keep a correct

driving posture even when mov-

ing the vehicle only slightly. This

allows you to depress the brake

and accelerator pedals properly.

• Depress the brake pedal using

your right foot. Depressing the

brake pedal using your left foot

may delay response in an emer-

gency, resulting in an accident.

●

Do not drive the vehicle over or

stop the vehicle near flammable

materials.

The exhaust system and

exhaust gases can be

extremely hot. These hot parts

may cause a fire if there is any

flammable material nearby.

●

During normal driving, do not

turn off the engine. Turning the

engine off while driving will not

cause loss of steering or brak-

ing control, but the power assist

to these systems 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.

However, in the event of an

emergency, such as if it

becomes impossible to stop the

vehicle in the normal way:



P.502

●

Use engine braking (downshift)

to maintain a safe speed when

driving down a steep hill.

Using the brakes continuously

may cause the brakes to over-

heat and lose effectiveness.

(



P.206)

●

Do not adjust the positions of

the steering wheel, the seat, or

the inside or outside rear view

mirrors while driving.

Doing so may result in a loss of

vehicle control.

●

Always check that all passen-

gers’ arms, heads or other parts

of their body are not outside the

vehicle.

●

Do not drive in excess of the

speed limit. Even if the legal

speed limit permits it, do not

drive over 85 mph (140 km/h)

unless your vehicle has high-

speed capability tires. Driving

over 85 mph (140 km/h) may

result in tire failure, loss of con-

trol and possible injury. Be sure

to consult a tire dealer to deter-

mine whether the tires on your

vehicle are high-speed capabil-

ity tires or not before driving at

such speeds.

178

4-1. Before driving

WARNING

●

On vehicles with electronically

modulated air suspension, if

you drive through deep water

over about 20 in. (500 mm) in

depth, put the vehicle height in

the “HI” mode using the height

control switch and then change

to manual mode by pushing the

height control mode select

switch. Drive your vehicle at 18

mph (30 km/h) or less. Do not

drive through water deeper than

about 28 in. (700 mm) even if

the vehicle height is in “HI”

mode. (



P.371)

■

When driving on slippery

road surfaces

●

Sudden braking, acceleration

and steering may cause tire

slippage and reduce your ability

to control the vehicle.

●

Sudden acceleration, engine

braking due to shifting, or

changes in engine speed could

cause the vehicle to skid.

●

After driving through a puddle,

lightly depress the brake pedal

to make sure that the brakes

are functioning properly. Wet

brake pads may prevent the

brakes from functioning prop-

erly. If the brakes on only one

side are wet and not functioning

properly, steering control may

be affected.

■

When shifting the shift lever

●

Do not let the vehicle roll back-

ward while a forward driving

position is selected, or roll for-

ward while the shift lever is in R.

Doing so may cause the engine

to stall or lead to poor brake and

steering performance, resulting

in an accident or damage to the

vehicle.

●

Do not shift the shift lever to P

while the vehicle is moving.

Doing so can damage the trans-

mission and may result in a loss

of vehicle control.

●

Do not shift the shift lever to R

while the vehicle is moving for-

ward.

Doing so can damage the trans-

mission and may result in a loss

of vehicle control.

●

Do not shift the shift lever to a

driving position while the vehicle

is moving backward.

Doing so can damage the trans-

mission and may result in a loss

of vehicle control.

●

Moving the shift lever to N while

the vehicle is moving will disen-

gage the engine from the trans-

mission. Engine braking is not

available when N is selected.

●

Be careful not to shift the shift

lever with the accelerator pedal

depressed. Shifting the shift

lever to any positions other than

P or N may lead to unexpected

rapid acceleration of the vehicle

that may cause an accident and

result in death or serious injury.

■

If you hear a squealing or

scraping noise (brake pad

wear indicators)

Have the brake pads checked and

replaced by your Toyota dealer, or

any reliable repairer as soon as

possible.

Rotor damage may result if the

pads are not replaced when

needed.

It is dangerous to drive the vehicle

when the wear limits of the brake

pads and/or those of the brake

discs are exceeded.

179

4-1. Before driving

ing

WARNING

■

When the vehicle is stopped

●

Do not race the engine.

If the vehicle is in any gear other

than P or N, the vehicle may

accelerate suddenly and unex-

pectedly, causing an accident.

●

In order to prevent accidents

due to the vehicle rolling away,

always keep depressing the

brake pedal while the engine is

running, and apply the parking

brake as necessary.

●

If the vehicle is stopped on an

incline, in order to prevent acci-

dents caused by the vehicle roll-

ing forward or backward, always

depress the brake pedal and

securely apply the parking

brake as needed.

●

Avoid revving or racing the

engine.

Running the engine at high

speed while the vehicle is

stopped may cause the exhaust

system to overheat, which could

result in a fire if combustible

material is nearby.

■

When the vehicle is parked

●

Do not leave glasses, cigarette

lighters, spray cans, or soft

drink cans in the vehicle when it

is in the sun.

Doing so may result in the fol-

lowing:

• Gas may leak from a cigarette

lighter or spray can, and may

lead to a fire.

• The temperature inside the

vehicle may cause the plastic

lenses and plastic material of

glasses to deform or crack.

• Soft drink cans may fracture,

causing the contents to spray

over the interior of the vehicle,

and may also cause a short cir-

cuit in the vehicle’s electrical

components.

●

Do not leave cigarette lighters in

the vehicle. If a cigarette lighter

is in a place such as the glove

box or on the floor, it may be lit

accidentally when luggage is

loaded or the seat is adjusted,

causing a fire.

●

Do not attach adhesive discs to

the windshield or windows. Do

not place containers such as air

fresheners on the instrument

panel or dashboard. Adhesive

discs or containers may act as

lenses, causing a fire in the

vehicle.

●

Do not leave a door or window

open if the curved glass is

coated with a metallized film

such as a silver-colored one.

Reflected sunlight may cause

the glass to act as a lens, caus-

ing a fire.

●

Always apply the parking brake,

shift the shift lever to P, stop the

engine and lock the vehicle.

Do not leave the vehicle unat-

tended while the engine is run-

ning.

If the vehicle is parked with the

shift lever in P but the parking

brake is not set, the vehicle may

start to move, possibly leading

to an accident.

●

Do not touch the exhaust pipes

while the engine is running or

immediately after turning the

engine off.

Doing so may cause burns.

180

4-1. Before driving

WARNING

●

4WD models: If the shift lever is

moved before the “4L” indicator

turns on/off, the transfer mode

may not be shifted completely.

The transfer mode disengages

both the front and rear drivesh-

afts from the powertrain and

allows the vehicle to move

regardless of the shift position.

(At this time, the indicator blinks

and the buzzer sounds.)

Therefore, the vehicle is free to

roll even if the automatic trans-

mission is in P. You or someone

else could be seriously injured.

You must complete the shifting

of the transfer mode. (



P.377)

■

When taking a nap in the vehi-

cle

Always turn the engine off. Other-

wise, if you accidentally move the

shift lever or depress the acceler-

ator pedal, this could cause an

accident or fire due to engine

overheating. Additionally, if the

vehicle is parked in a poorly venti-

lated area, exhaust gases may

collect and enter the vehicle, lead-

ing to death or a serious health

hazard.

■

When braking

●

When the brakes are wet, drive

more cautiously.

Braking distance increases

when the brakes are wet, and

this may cause one side of the

vehicle to brake differently than

the other side. Also, the parking

brake may not securely hold the

vehicle.

●

If the brake booster device does

not operate, do not follow other

vehicles closely and avoid hills

or sharp turns that require brak-

ing.

In this case, braking is still pos-

sible, but the brake pedal

should be depressed more

firmly than usual. Also, the brak-

ing distance will increase. Have

your brakes fixed immediately.

●

Do not pump the brake pedal if

the engine stalls.

Each push on the brake pedal

uses up the reserve for the

power-assisted brakes.

●

The brake system consists of 2

individual hydraulic systems; if

one of the systems fails, the

other will still operate. In this

case, the brake pedal should be

depressed more firmly than

usual and the braking distance

will increase. Have your brakes

fixed immediately.

■

If the vehicle becomes stuck

Do not spin the wheels exces-

sively when a driven wheel is up

in the air, or the vehicle is stuck in

sand, mud, etc. This may damage

the driveline components or pro-

pel the vehicle forward or back-

ward, causing an accident.

NOTICE

■

When driving the vehicle

●

Do not depress the accelerator

and brake pedals at the same

time during driving, as this may

restrain the engine output.

●

Do not use the accelerator

pedal or depress the accelera-

tor and brake pedals at the

same time to hold the vehicle on

a hill.

181

4-1. Before driving

ing

When the following unusual
operation is performed with the
accelerator pedal depressed,
the engine output may be
restrained.
• When the shift lever is shifted

to R

• When the shift lever is shifted

from P or R to forward drive
shift position such as D

When the system operates, a mes-

NOTICE

■

When parking the vehicle

Always set the parking brake and

shift the shift lever to P. Failure to

do so may cause the vehicle to

move or the vehicle may acceler-

ate suddenly if the accelerator

pedal is accidentally depressed.

■

Avoiding damage to vehicle

parts

●

Do not turn the steering wheel

fully in either direction and hold

it there for an extended period

of time.

Doing so may damage the

power steering motor.

●

When driving over bumps in the

road, drive as slowly as possible

to avoid damaging the wheels,

underside of the vehicle, etc.

●

Make sure to idle the engine

immediately after high-load driv-

ing. Stop the engine only after

the turbocharger has cooled

down. Failure to do so may

cause damage to the turbo-

charger

■

If you get a flat tire while driv-

ing

A flat or damaged tire may cause

the following situations. Hold the

steering wheel firmly and gradu-

ally depress the brake pedal to

slow down the vehicle.

●

It may be difficult to control your

vehicle.

●

The vehicle will make abnormal

sounds or vibrations.

●

The vehicle will lean abnor-

mally.

Information on what to do in case

of a flat tire (



P.523)

■

When encountering flooded

roads

Do not drive on a road that has

flooded after heavy rain, etc.

Doing so may cause the following

serious damage to the vehicle:

●

Engine stalling

●

Short in electrical components

●

Engine damage caused by

water immersion

In the event that you drive on a

flooded road and the vehicle

becomes flooded or stuck in mud

or sand, be sure to have your Toy-

ota dealer check the following:

●

Brake function

●

Changes in quantity and quality

of oil and fluid used for the

engine, transmission, transfer

(4WD vehicles), differential, etc.

●

Lubricant condition for the pro-

peller shaft, bearings and sus-

pension joints (where possible),

and the function of all joints,

bearings, etc.

Sudden start restraint
control (Drive-Start Con-
trol [DSC])

182

4-1. Before driving

sage appears on the multi-informa-
tion display. Read the message and
follow the instruction.

: Depending on the situation, the

shift position may not be
changed.

■

Drive-Start Control (DSC)

When the TRAC is turned off

(



P.391), sudden start restraint

control also does not operate. If

your vehicle have trouble escaping

from the mud or fresh snow due to

sudden start restraint operation,

deactivate TRAC (



P.391) so that

the vehicle may become able to

escape from the mud or fresh snow.
Also, sudden start restraint control

will not operate in the following con-

ditions:

●

When the front-wheel drive control

switch is in “4H” or “4L” position.

(4WD models only)

●

When AUTO LSD mode, the drive

start control does not operate. (if

equipped)

●

When Multi-terrain Select is

selected. (if equipped)

Cargo capacity depends on the
total weight of the occupants.
(Cargo capacity) = (Total load
capacity) — (Total weight of
occupants)
Steps for Determining Correct
Load Limit —
(1) Locate the statement “The
combined weight of occupants
and cargo should never exceed
XXX kg or XXX lbs.” on your
vehicle’s placard.
(2) Determine the combined
weight of the driver and passen-
gers that will be riding in your
vehicle.
(3) Subtract the combined
weight of the driver and passen-
gers from XXX kg or XXX lbs.
(4) The resulting figure equals
the available amount of cargo
and luggage load capacity.
For example, if the “XXX”
amount equals 1400 lbs. and
there will be five 150 lb passen-
gers in your vehicle, the amount
of available cargo and luggage
load capacity is 650 lbs. (1400 −

Cargo and luggage

Take notice of the following
information about storage
precautions, cargo capacity
and load:

Capacity and distribution

183

4-1. Before driving

ing

750 (5



150) = 650 lbs.)

(5) Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo and
luggage load capacity calcu-
lated in Step 4.
(6) If your vehicle will be towing
a trailer, load from your trailer
will be transferred to your vehi-
cle. Consult this manual to
determine how this reduces the
available cargo and luggage
load capacity of your vehicle.
(



P.185)

Cargo capacity

Total load capacity (vehicle
capacity weight) (



P.547)

When 2 people with the com-
bined weight of A lb. (kg) are rid-
ing in your vehicle, which has a
total load capacity (vehicle
capacity weight) of B lb. (kg),
the available amount of cargo
and luggage load capacity will

be C lb. (kg) as follows:

lb. (kg) - A

lb. (kg) = C

lb.

(kg)

:A =Weight of people

:B =Total load capacity

:C =Available cargo and luggage

load

In this condition, if 3 more passen-
gers with the combined weight of D
lb. (kg) get on, the available cargo
and luggage load will be reduced E
lb. (kg) as follows:

C lb. (kg) - D

lb. (kg) = E

lb.

(kg)

:D =Additional weight of people

:E =Available cargo and luggage

load

As shown in the example above,
if the number of occupants
increases, the cargo and lug-
gage load will be reduced by an
amount that equals the
increased weight due to the
additional occupants. In other
words, if an increase in the num-
ber of occupants causes an
excess of the total load capacity
(combined weight of occupants
plus cargo and luggage load),
you must reduce the cargo and
luggage on your vehicle.

Calculation formula for
your vehicle

WARNING

■

Things that must not be car-

ried in the luggage compart-

ment

The following things may cause a

fire if loaded in the luggage com-

partment:

184

4-1. Before driving

WARNING

●

Receptacles containing gaso-

line

●

Aerosol cans

■

Storage precautions

Observe the following precau-

tions.

Failure to do so may prevent the

pedals from being depressed

properly, may block the driver’s

vision, or may result in items hit-

ting the driver or passengers, pos-

sibly causing an accident.

●

Do not stack anything behind

the front seats higher than the

seatbacks.

●

Do not place cargo or luggage

in or on the following locations.

• At the feet of the driver

• On the front passenger or rear

seats (when stacking items)

• On the instrument panel

• On the dashboard

• On the auxiliary box or tray that

has no lid

●

Secure all items in the occupant

compartment.

●

Never allow anyone to ride in

the rear deck. It is not designed

for passengers. They should

ride in their seats with their seat

belts properly fastened. Other-

wise, they are much more likely

to suffer death or serious bodily

injury, in the event of sudden

braking, sudden swerving or an

accident.

■

Capacity and distribution

●

Do not exceed the maximum

axle weight rating or the total

vehicle weight rating.

●

Even if the total load of occu-

pant’s weight and the cargo

load is less than the total load

capacity, do not apply the load

unevenly. Improper loading may

cause deterioration of steering

or braking control which may

cause death or serious injury.

185

4-1. Before driving

ing

■

Total load capacity and seating

capacity

These details are also described on

the tire and loading information

label. (



P.553)

Vehicle load limits

Vehicle load limits include
total load capacity, seating
capacity, TWR (Trailer
Weight Rating) and cargo
capacity.



Total load capacity (vehicle
capacity weight):



P.547

Total load capacity means the
combined weight of occu-
pants, cargo and luggage.



Seating capacity:



P.548

Seating capacity means the
maximum number of occu-
pants whose estimated aver-
age weight is 150 lb. (68 kg)
per person.
Even if the number of occu-
pants are within the seating
capacity, do not exceed the
total load capacity.



TWR (Trailer Weight Rat-
ing):



P.191

TWR means the maximum
gross trailer weight (trailer
weight plus its cargo weight)
that your vehicle is able to tow.



Cargo capacity

Cargo capacity may increase
or decrease depending on the
weight and the number of
occupants.

WARNING

■

Overloading the vehicle

Do not overload the vehicle.

It may not only cause damage to

the tires, but also degrade steer-

ing and braking ability, resulting in

an accident.

186

4-1. Before driving

■

Trailer brake controller (if

equipped)



P.395

■

Before towing

Check that the following conditions

are met:

●

Ensure that your vehicle’s tires

are properly inflated. (



P.553)

●

Trailer tires are inflated according

to the trailer manufacturer’s rec-

ommendation.

●

All trailer lights work as required

by law.

●

All lights work each time you con-

nect them.

●

The trailer ball is set at the proper

height for the coupler on the

trailer.

●

The trailer is level when it is

hitched. Do not drive if the trailer

is not level, and check for

improper tongue weight, overload-

ing, worn suspension, or other

possible causes.

●

The trailer cargo is securely

loaded.

●

The rear view mirrors conform to

all applicable federal, state/provin-

cial or local regulations. If they do

not, install rear view mirrors

appropriate for towing purposes.

Trailer towing

Your vehicle is designed pri-
marily as a passenger-and-
load-carrying vehicle. Tow-
ing a trailer can have an
adverse impact on handling,
performance, braking, dura-
bility, and fuel consumption.
For your safety and the
safety of others, you must
not overload your vehicle or
trailer. You must also
ensure that you are using
appropriate towing equip-
ment, that the towing equip-
ment has been installed
correctly and used prop-
erly, and that you employ
the requisite driving habits.

Vehicle-trailer stability and
braking performance are
affected by trailer stability,
brake performance and set-
ting, trailer brakes, the hitch
and hitch systems (if
equipped).

To tow a trailer safely, use
extreme care and drive the
vehicle in accordance with
your trailer’s characteris-
tics and operating condi-
tions.

Toyota warranties do not
apply to damage or mal-
function caused by towing a
trailer for commercial pur-
poses.

Contact your Toyota dealer for
further information about addi-
tional requirements such as a
towing kit, etc.

187

4-1. Before driving

ing

WARNING

■

Trailer towing precautions

To tow a trailer safely, use

extreme care and drive the vehi-

cle in accordance with the trailer’s

characteristics and operating con-

ditions. Failure to do so could

cause an accident resulting in

death or serious injury. Vehicle

stability and braking performance

are affected by trailer stability,

brake setting and performance,

and the hitch. Your vehicle will

handle differently when towing a

trailer.

■

To avoid accident or injury

●

Do not exceed the TWR,

unbraked TWR, GCWR, GVWR

or GAWR.

●

If the gross trailer weight is over

2000 lb. (900 kg), a sway con-

trol device with sufficient capac-

ity is required.

●

If the gross trailer weight is over

5000 lb. (2200 kg), a weight dis-

tributing hitch with sufficient

capacity is required.

●

Adjust the tongue weight within

the appropriate range. Place

heavier loads as close to the

trailer axle as possible.

●

Do not exceed 65 mph (104

km/h), the posted towing speed

limit or the speed limit for your

trailer as set forth in your trailer

owner’s manual, whichever is

lowest. Slow down sufficiently

before making a turn, in cross

winds, on wet or slippery sur-

face, etc., to help avoid an acci-

dent. If you experience a

vehicle-trailer instability from

reducing a certain speed, slow

down and make sure you keep

your vehicle speed under the

speed of which you experience

the instability.

●

Do not make jerky, abrupt or

sharp turns.

●

Do not apply the brakes sud-

denly as you may skid, resulting

in jackknifing and loss of vehicle

control. This is especially true

on wet or slippery surfaces.

●

Do not exceed the trailer hitch

assembly weight, gross vehicle

weight, gross axle weight and

trailer tongue weight capacities.

●

Do not use the following sys-

tems when your vehicles is tow-

ing a trailer or another vehicle.

• PCS (Pre-Collision System) (if

equipped)

• Dynamic radar cruise control

with full-speed range (if

equipped)

Except when the following condi-

tions are all met,

• When the other vehicle is a

trailer properly attached and

connected to Toyota’s official

TBC ECU.

• When the vehicle is not being

driven on a slippery surface

such as an icy road or a very

wet road.

●

Do not use the following sys-

tems when your vehicles is tow-

ing a trailer or another vehicle.

• Cruise control (if equipped)

• LTA (Lane Tracing Assist) (if

equipped)

If the vehicle detects that a trailer

is being towed, the lane centering

function of LTA is automatically

turned off.

188

4-1. Before driving

■

GCWR (Gross Combination
Weight Rating)

The maximum allowable gross
combination weight. The gross
combination weight is the sum
of the total vehicle weight
(including the occupants, cargo
and any optional equipment
installed on the vehicle) and the
weight of the trailer being towed
(including the cargo in the
trailer).

■

GVWR (Gross Vehicle
Weight Rating)

The maximum allowable gross
vehicle weight. The gross vehi-
cle weight is the total weight of
the vehicle. When towing a
trailer, it is the sum of the vehicle
weight (including the occu-
pants, cargo and any optional
equipment installed on the vehi-
cle) and the tongue weight.

WARNING

●

Slow down and downshift

before descending steep or long

downhill grades. Do not make

sudden downshifts while

descending steep or long down-

hill grades.

●

Vehicle-trailer instability is more

likely on steep long downhills.

Before descending steep or

long downhill grades, slow

down and downshift. Do not

make sudden downshifts when

descending steep or long down-

hill grades. Avoid holding the

brake pedal down too long or

applying the brakes too fre-

quently. This could cause the

brakes to overheat and result in

reduced braking efficiency.

●

Do not tow a trailer when the

temporary spare tire is installed

on your vehicle.

■

When towing a trailer

Toyota recommends trailers with

brakes that conform to any appli-

cable federal and state/provincial

regulations.

●

If the gross trailer weight

exceeds unbraked TWR, trailer

brakes are required. Toyota rec-

ommends trailers with brakes

that conform to all applicable

federal and state/provincial reg-

ulations.

●

Never tap into your vehicle’s

hydraulic system, as this will

lower the vehicle’s braking

effectiveness.

●

Never tow a trailer without using

a safety chain securely attached

to both the trailer and the vehi-

cle. If damage occurs to the

coupling unit or hitch ball, there

is danger of the trailer wander-

ing into another lane.

Towing related terms

189

4-1. Before driving

ing

■

GAWR (Gross Axle Weight
Rating)

The maximum allowable gross
axle weight. The gross axle
weight is the load placed on
each axle (front and rear).

Front GAWR

Rear GAWR

■

TWR (Trailer Weight Rating)

The maximum allowable gross
trailer weight. The gross trailer
weight is the sum of the trailer
weight and the weight of the
cargo in the trailer.
TWR is calculated assuming
base vehicle with one driver,
one front passenger, towing

package (if available), hitch and
hitch systems (if required).

Additional optional equipment, pas-
sengers and cargo in the vehicle
will reduce the trailer weight rating
so as not to exceed GCWR, GVWR
and GAWR.
If the gross trailer weight exceeds
3000 lb. (1360 kg), it is recom-
mended to use a trailer with 2 or
more axles.

With brakes

■

Unbraked TWR (Unbraked
Trailer Weight Rating)

The trailer weight rating for tow-
ing a trailer without a trailer ser-
vice brake system.

Without brakes

■

Tongue Weight

The load placed on the trailer
hitch ball. (



P.192)