2023 TOYOTA TUNDRA HYBRID towing

1784-1. Before driving
Owners Manual_USA_M0C052_en
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 − 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.180)
Cargo capacity
Total load capacity (vehicle
capacity weight) ( P.541)
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
Cargo and luggage
Take notice of the following
information about storage
precautions, cargo capacity
and load:
Capacity and distribution
Calculation formula for
your vehicle

1814-1. Before driving
Owners Manual_USA_M0C052_en
4
Driving
■Total load capacity and seating
capacity
These details are also described on
the tire and loading information
label. ( P.547)
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.
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.
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.

1824-1. Before driving
Owners Manual_USA_M0C052_en
■Trailer brake controller
 P. 3 8 0
■Before towing
Check that the following conditions
are met:
●Ensure that your vehicle’s tires
are properly inflated. ( P.547)
●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 dri ve 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 regu lations. If they do
not, install rear view mirrors
appropriate for towing purposes.
Contact your Toyota dealer for
further information about addi-
tional requirements such as a
towing kit, etc.WARNING
■Trailer towing precautions
To tow a traile r 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 brak ing 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 spee d 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 hel p 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.

1834-1. Before driving
Owners Manual_USA_M0C052_en
4
Driving
WARNING
●Do not make jerk y, 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 th e 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 a nother vehicle.
• PCS (Pre-Collision System)
• Dynamic radar cruise control with full-speed range
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 a nother vehicle.
• Cruise control (if equipped)
• LTA (Lane Tracing Assist)
If the vehicle detects that a trailer
is being towed, the lane centering
function of LTA is automatically
turned off.
●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 s tate/provincial
regulations.
●If the gross tr ailer 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 traile r 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.

1844-1. Before driving
Owners Manual_USA_M0C052_en
■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.
■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
Towing related terms

1864-1. Before driving
Owners Manual_USA_M0C052_en
Certification Label. (P.541)
 If the gross trailer weight is
over the unbraked TWR,
trailer service brakes are
required.
 If the gross trailer weight is
over 2000 lb. (907 kg), a sway control device with sufficient
capacity is required.
 If the gross trailer weight is
over 5000 lb. (2268 kg), a
weight distributing hitch with
sufficient capacity is required.
Confirm that the gross trailer we ight, gross combination weight,
gross vehicle weight, gross axle weight and tongue weight are all
within the limits.
■GCWR* and TWR*
*1: The model code is indicated o n the Certification Label. (P.541)
■Unbraked TWR*
1000 lb. (453 kg)
*: These models meet the tow-vehicle trailering requirement of SA E Interna-
tional per SAE J2807.
GCWR, TWR, Unbraked TWR, Fifth wheel and Goose-
neck towing TWR
Model code*1GCWRTWR
VXKH70L-PSVLZA17770 lb. (8030 kg)11450 lb. (5190 kg)
VXKH70L-PSVZZA17770 lb. (8030 kg)11380 lb. (5160 kg)
VXKH71L-PRVLZA17770 lb. (8030 kg)11350 lb. (5145 kg)
VXKH71L-PRVZZA17770 lb. (8030 kg)11290 lb. (5120 kg)
VXKH75L-PSVLZA17770 lb. (8030 kg)11170 lb. (5065 kg)
VXKH75L-PSVUZA17000 lb. (7710 kg)10340 lb. (4690 kg)
VXKH75L-PSVZZA17600 lb. (7980 kg)11020 lb. (4995 kg)
VXKH76L-PRVLZA17770 lb. (8030 kg)11040 lb. (5005 kg)
VXKH76L-PRVZZA17770 lb. (8030 kg)10960 lb. (4970 kg)

1874-1. Before driving
Owners Manual_USA_M0C052_en
4
Driving
 A recommended tongue
weight or kingpin weight var-
ies in accordance with the
types of trailers or towing as
described below.
 To ensure the recommended
values shown below, the
trailer must be loaded by
referring to the following
instructions.
1.Conventional Towing
The gross trailer weight should
be distributed so that the tongue
weight is 9% to 11%. (Tongue
Weight/Gross trailer weight x
100 = 9% to 11%)
Gross trailer weight
Tongue Weight
If using a weight d istributing hitch
when towing, return the front axle to
the same weight as before the
trailer connection.
If front axle weight cannot be mea-
sured directly, measure the front
fender height above the front axle
before connection. Adjust weight
distributing hitch torque until front fender is returned to the same
height as before connection.
Do not reduce front fender height
below original measurement.
The gross trailer weight, gross axle
weight and tongue weight can be
measured with platform scales
found at a highway weighing sta-
tion, building supply company,
trucking company, junk yard, etc.
2.Fifth wheel Towing or Goose-
neck Towing
The gross trailer weight should
be distributed so that the kingpin
weight is 14% to 16%. (Kingpin
weight/Gross trailer weight x
100 = 14% to 16%)
Gross trailer weight
Kingpin weight
The gross trailer weight and kingpin
weight can be measured with plat-
form scales found at a highway
weighing station, building supply
company, trucking company, junk
yard, etc.
Current fifth whee l trailer designs
are not compatible with short bed.
Trailer Tongue Weight and
Trailer Kingpin Weight

1884-1. Before driving
Owners Manual_USA_M0C052_en
Trailer hitch assemblies have
different weight capacities. Toy-
ota recommends the use of Toy-
ota hitch/bracket for your
vehicle. For details, contact your
Toyota dealer.
If you wish to install a trailer
hitch, contact your Toyota
dealer.
 Use only a hitch that con-
forms to the gross trailer
weight requirement of your
vehicle.
 Follow the directions supplied
by the hitch manufacturer.
 Lubricate the hitch ball and
kingpin with a light coating of
grease.
 Remove the hitch ball when-
ever you are not towing a
trailer. Remove the trailer
hitch if you do not need it.
After removing the hitch, seal any mounting holes in the
vehicle body to prevent entry
of any substances into the
vehicle.
Use the correct trailer ball for
your application.
NOTICE
■When towing a fifth wheel
trailer
Be careful not to hit the cabin or
bed with the trailer while making a
sharp turn.
Hitch
WARNING
■Hitch
Trailer hitch assemblies have dif-
ferent weight capacities estab-
lished by the hitch manufacturer.
Even though the vehicle may be
physically capable of towing a
higher weight, the operator must
determine the maximum weight
rating of the particular hitch
assembly and never exceed the
maximum weight rating specified
for the trailer-hitch. Exceeding the
maximum weight rating set by the
trailer-hitch manufacturer can
cause an accident resulting in
death or serious personal injuries.
NOTICE
■When installing a trailer hitch
Use only the position recom-
mended by your Toyota dealer.
Do not install the trailer hitch on
the bumper; this may cause body
damage.
Selecting trailer ball