2003 TOYOTA TUNDRA vehicle weight rating

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
If towing a trailer and cargo weigh-
ing over 907 kg (2000 lb.), it is
necessary to use a sway control
device with sufficient capacity. The
combination of the gross trailer
weight added to the total weight of
the vehicle, occupants and vehicle
cargo must never exceed a total of
the following.
5VZFE engine
Twowheel drive models 4173 kg (9200 lb.)
Fourwheel drive models
4309 kg (9500 lb.)
2UZFE engine
Without towing package 4536 kg (10000 lb.)
With towing package
5352 kg (11800 lb.)
Exceeding the maximum weight of
the trailer, the vehicle, or the ve-
hicle and trailer combination, can
cause an accident resulting in seri-
ous personal injuries.
Trailer hitch assemblies have differ-
ent weight capacities established by
the hitch manufacturer. Even though
the vehicle may be physically capa-
ble of towing a higher weight, the
operator must determine the maxi-
mum weight rating of the particular
hitch assembly and never exceed
the maximum weight rating speci-
fied for the trailerhitch. Exceeding
the maximum weight rating set by
the trailer hitch manufacturer can
cause an accident resulting in seri-
ous personal injuries.
The gross vehicle weight must not
exceed the Gross Vehicle Weight
Rating (GVWR) indicated on the
Certification Label. The gross ve-
hicle weight is the sum of weights
of the unloaded vehicle, driver, pas-
sengers, luggage, hitch and trailer
tongue load. It also includes the
weight of any special equipment
installed on your vehicle.
The load on either the front or rear
axle resulting from distribution of
the gross vehicle weight on both
axles must not exceed the Gross
Axle Weight Rating (GAWR) listed
on the Certification Label.

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1 Trailer ball load rating
2 Ball diameter
3 Shank length
4 Shank diameter
TRAILER BALL
Follow these easy steps to properly deter-
mine the correct trailer ball for your ap-
plication:
1. Determine the correct trailer ball size for the trailer coupler. Most couplers
are stamped with the required trailer
ball size. The sizes you will most likely
find stamped on the coupler are:
Trailer class
Typical trailer ball size
III and IV2 5/16 in.
II2 in.
I1 7/8 in.
2. Select the appropriate trailer ball to match or exceed the gross trailer
weight rating of the trailer. The trailer
ball load rating should be printed on
the top of the ball.
3. When mounted in the ball mount, the threaded ball shank must protrude be-
yond the bottom of the lock washer
and nut at least 2 threads. The trailer
ball shank must be matched to the ball
mount hole diameter size.
NOTICE
Vehicles with 2UZFE engine (with
towing package)—Only use a ball
mount attachment specified for the
Toyota Tundra.

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MATCHING TRAILER BALL HEIGHT TO
TRAILER COUPLER HEIGHT
No matter which class of tow hitch ap-
plies, for a safe trailer hookup, the trailer
ball setup on must be the proper height
for the coupler on the trailer.
BRAKES AND SAFETY CHAINS
Toyota recommends trailers with
brakes that conform to any applica-
ble federal and state/provincial regu-
lations.
A safety chain must always be used
between the towing vehicle and the
trailer. Leave sufficient slack in the
chain for turns. The chain should
cross under the trailer tongue to
prevent the tongue from dropping to
the ground in case it becomes dam-
aged or separated. For correct safety
chain procedures, follow the hitch or
trailer manufacturer ’s recommenda-
tions.
CAUTION
If the total trailer weight exceeds
453 kg (1000 lb.), trailer brakes are
required.
Never tap into your vehicle’s hy-
draulic system as it would lower its
braking effectiveness.
Never tow a trailer without using a
safety chain securely attached to
both the trailer and the vehicle. If
damage occurs to the coupling unit
or hitch ball, there is danger of the
trailer wandering over into another
lane.
SERVICE CONNECTOR FOR TOWING
BRAKE CONTROLLER (with towing
package)
Your vehicle is equipped with a service
connector for the towing brake controller
as shown. Link the connector to the tow-
ing brake controller via the sub wire har-
ness stored in the glove box. The detailed
explanation of the sub wire harness circuit
is packed together with the sub wire har-
ness.
Be sure to position the towing brake con-
troller where it does not prevent the driver
from operating the pedal.
Toyota recommends that the sub wire har-
ness be stored in the glove box when it
is not in use.

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Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine lugging or overrev-
ving. Use a gear position suitable for
the road on which you are travelling.
Avoid continuous speeding up and
slowing down. Stop−and− go driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the clutch
or brake pedal. This causes premature
wear, overheating and poor fuel econo-
my.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
Keep the front wheels in proper
alignment. Avoid hitting the curb and
slow down on rough roads. Improper
alignment not only causes faster tire
wear but also puts an extra load on
the engine, which, in turn, wastes fuel.
Keep the bottom of your vehicle free
from mud, etc. This not only lessens
weight but also helps prevent corro-
sion.
Keep your vehicle tunedup and in
top shape. A dirty air cleaner,
improper valve clearance, dirty plugs,
dirty oil and grease, brakes not
adjusted, etc. all lower engine
performance and contribute to poor fuel
economy. For longer life of all parts
and lower operating costs, keep all
maintenance work on schedule, and if
you often drive under severe
conditions, see that your vehicle
receives more frequent maintenance.
(For scheduled maintenance informa-
tion, please refer to the “Scheduled
Maintenance Guide” or “Owner ’s
Manual Supplement”.)
CAUTION
Never turn off the engine to coast
down hills. Your power steering and
brake booster will not function with-
out the engine running. Also, the
emission control system operates
properly only when the engine is run-
ning.

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This information has been prepared in ac-
cordance with regulation issued by the Na-
tional Highway Traffic Safety Administra-
tion of the U.S. Department of
Transportation. It provides the purchasers
and/or prospective purchasers of Toyota
vehicles with information on truck −camper
loading. Your Toyota dealer will help an-
swer any questions you may have as you
read this information.Rear end of truck bed
Recommended location
for cargo center of
gravity for cargo weight
rating
Standard cab models
Rear end of truck bed
Recommended location
for cargo center of
gravity for cargo weight
rating
Access cab models (standard bed)
Rear end of truck bed
Recommended location
for cargo center of
gravity for cargo weight
rating
Access cab models (StepSide bed)
The figures given in the illustration indi-
cate the recommended center of gravity
zone.
Standard cab models A: 1186 mm (46.7 in.)
B: 1058 mm (41.7 in.)
Access cab models Standard bedA: 1186 mm (46.7 in.)
B: 1058 mm (41.7 in.)
StepSide bed A: 1158 mm (45.6 in.)
B: 1030 mm (40.6 in.)
Camper information— —Center of gravity location

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When the truck is used to carry a slide −in
camper, the total cargo load of the truck
consists of the manufacturer ’s camper
weight figure, the weight of installed addi-
tional camper equipment not included in
the manufacturer ’s camper weight figure,
the weight of camper cargo, and the
weight of passengers in the camper.
The total cargo load should not exceed
the truck’s cargo weight rating and the
camper ’s center of gravity should fall with-
in the truck’s recommended center of
gravity zone when installed.
CAUTION
Be careful—overloading can cause
dangerous braking and handling prob-
lems, and can damage your vehicle
and its tires.
Gross axle weight rating
Front GAWR Rear GAWR
Secure loose items to prevent weight
shifts that could affect the balance of your
vehicle. When the truck camper is loaded,
drive to a scale and weigh on the front
and on the rear wheels separately to de-
termine axle loads. Individual axle loads
should not exceed either of the Gross
Axle Weight Ratings (GAWR). The total of
the axle loads should not exceed the
Gross Vehicle Weight Rating (GVWR).
These ratings are given on the vehicle
Certification Label which is located on the
door latch post on the left side of the
vehicle. See “Your Toyota’s identification”
in Section 2 for the Certification Label
location. If weight ratings are exceeded,
move or remove items to bring all weights
below the ratings.
Gross vehicle weight rating
Not exceed GVWR
GAWRFront 1433 kg (3160 lb.)
RearP245/70R16 tires
1706 kg (3760 lb.)
P265/70R16 or P265/65R17 tires 1796 kg (3960 lb.)
—Gross axle and vehicle
weight ratings