Maximum Gross Vehicle Weight
(GVW)/maximum Gross Axle Weight
(GAW)
The GVW of the towing vehicle must not exceed
the Gross Vehicle Weight Rating (GVWR)
shown on the F.M.V.S.S./C.M.V.S.S. certification
label. The GVW equals the combined weight of
the unloaded vehicle, passengers, luggage,
hitch, trailer tongue load and any other optional
equipment. In addition, front or rear GAW must
not exceed the Gross Axle Weight Rating
(GAWR) shown on the F.M.V.S.S./C.M.V.S.S.
certification label.Towing capacities are calculated assuming a
base vehicle with driver and any options required
to achieve the rating. Additional passengers,
cargo and/or optional equipment, such as the
trailer hitch, will add weight to the vehicle and
reduce your vehicle’s maximum towing capacity
and trailer tongue load.
The vehicle and trailer need to be weighed to
confirm the vehicle is within the GVWR, Front
GAWR, Rear GAWR, Gross Combined Weight
Rating (GCWR) and Towing capacity.
All vehicle and trailer weights can be measured
using platform type scales commonly found at
truck stops, highway weigh stations, building
supply centers or salvage yards.
To determine the available payload capacity for
tongue load, use the following procedure.
1. Locate the GVWR on the F.M.V.S.S./C.M.V.S.S. certification label.
2. Weigh your vehicle on the scale with all of the passengers and cargo that are normally
in the vehicle when towing a trailer.
3. Subtract the actual vehicle weight from the GVWR. The remaining amount is the avail-
able maximum tongue load. To determine the Gross Trailer Weight, weigh
your trailer on a scale with all equipment and
cargo, that are normally in the trailer when it is
towed. Make sure the Gross Trailer Weight is not
more than the Gross Trailer Weight Rating shown
on the trailer and is not more than the calculated
available maximum towing capacity.
Also weigh the front and rear axles on the scale to
make sure the Front Gross Axle Weight and Rear
Gross Axle Weight are not more than Front
Gross Axle Weight and Rear Gross Axle Weight
on the F.M.V.S.S./C.M.V.S.S. certification label.
The cargo in the trailer and vehicle may need to
be moved or removed to meet the specified rat-
ings.
Example:
● Gross Vehicle Weight (GVW) as weighed
on a scale - including passengers, cargo and
hitch - 4,446 lb. (2016 kg) .
● Gross Vehicle Weight Rating (GVWR) from
F.M.V.S.S./C.M.V.S.S. certification label -
4,546 lb. (2062 kg) .
● Maximum Towing Load from “Towing
Load/Specification chart - 1,000 lb.
(454 kg) .
TI1012M
9-18Technical and consumer information
4,546 lb. (2062 kg) GVWR
– 4,446 lb. (2016 kg) GVW
= 100 lb. (45 kg) Available for tongue weight
1,000 lb. (454 kg) Capacity available for towing
100 lb. (45 kg) Available tongue weight
/ 1,000 lb. (454 kg) Available capacity
= 10 % tongue weight
The available towing capacity may be less than
the maximum towing capacity due to the passen-
ger and cargo load in the vehicle.
Remember to keep trailer tongue weight be-
tween 10 - 15% of the trailer weight or within the
trailer tongue load specification recommended
by the trailer manufacturer. If the tongue load
becomes excessive, rearrange the cargo to ob-
tain the proper tongue load. Do not exceed the
maximum tongue weight specification shown in
the “Towing load/specification” chart even if the
calculated available tongue weight is greater
than 15%. If the calculated tongue weight is less
than 10% , reduce the total trailer weight to
match the available tongue weight. Always verify that available capacities are within
the required ratings.
TOWING LOAD/SPECIFICATION
TOWING LOAD / SPECIFICATION
UNIT: lb (kg)
MAXIMUM TOWING LOAD *1 1,000 (454)
MAXIMUM TONGUE LOAD 100 (45)
*1: The towing capacity values are calculated
assuming a base vehicle with driver and any
options required to achieve the rating. Additional
passengers, cargo and/or optional equipment
will add weight to the vehicle and reduce your
vehicle’s maximum towing capacity.
TOWING SAFETY
Trailer hitch
Choose a proper hitch for your vehicle and trailer.
Make sure the trailer hitch is securely attached to
the vehicle, to help avoid personal injury or prop-
erty damage due to sway caused by crosswinds,
rough road surfaces or passing trucks.
WARNING
Trailer hitch components have specific
weight ratings. Your vehicle may be ca-
pable of towing a trailer heavier than the
weight rating of the hitch components.
Never exceed the weight rating of the
hitch components. Doing so can cause
serious personal injury or property
damage.
Hitch ball
Choose a hitch ball of the proper size and weight
rating for your trailer:
● The required hitch ball size is stamped on
most trailer couplers. Most hitch balls also
have the size printed on the top of the ball.
● Choose the proper class hitch ball based on
the trailer weight.
● The diameter of the threaded shank of the
hitch ball must be matched to the ball mount
hole diameter. The hitch ball shank should
be no more than 1/16” smaller than the hole
in the ball mount.
● The threaded shank of the hitch ball must be
long enough to be properly secured to the
ball mount. There should be at least 2
threads showing beyond the lock washer
and nut.
Technical and consumer information9-19
