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 ex-
ceed the Gross Axle Weight Rating (GAWR)
shown on the F.M.V.S.S./C.M.V.S.S. certifica-
tion label.Towing capacities are calculated assum-
ing a base vehicle with driver and any op-
tions required to achieve the rating. Addi-
tional 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 mea-
sured 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
available maximum tongue load. To determine the available towing capacity,
use the following procedure.
1. Find the GCWR for your vehicle on the
"Towing Load/Specification" chart found
in this section.
2. Subtract the actual vehicle weight from the GCWR. The remaining amount is the
available maximum towing capacity.
To determine the Gross Trailer Weight,
weigh your trailer on a scale with all equip-
ment 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 ratings.
Example:
• Gross Vehicle Weight (GVW) as weighed on a scale- including passengers, cargo
and hitch - 5,185 lbs. (2352 kg).
CA0036
• Gross Vehicle Weight Rating (GVWR) fromF.M.V.S.S./C.M.V.S.S. certification label -
5,815 lbs. (2638 kg).
• Gross Combined Weight Rating (GCWR) from “Towing Load/Specification" chart -
11,133 lbs. (5050 kg).
• Maximum Trailer towing capacity from “Towing Load/Specification" chart - 6,100
lbs. (2767 kg).
5,815 lbs. (2638 kg) GVWR
– 5,185 lbs. (2352 kg) GVW = 630 lbs. (286 kg) Available for tongue weight
11,133 lbs. (5050 kg) GCWR
– 5,185 lbs. (2352 kg) GVW
= 5,948 lbs. (2698 kg) Capacity available for towing
630 lbs. (286 kg) Available tongue weight
/ 5,948 lbs. (2698 kg) Available capacity = 10 % tongueweight The available towing capacity may be less
than the maximum towing capacity due to
the passenger and cargo load in the ve-
hicle.
Remember to keep trailer tongue weight
between 10 - 15 percent of the trailer weight
or within the trailer tongue load specifica-
tion recommended by the trailer manufac-
turer. If the tongue load becomes exces-
sive, rearrange the cargo to obtain 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 percent. If
the calculated tongue weight is less than
10 percent, reduce the total trailer weight to
match the available tongue weight.
Always verif y that available capacities are
within the required ratings.
Trailer frontal area
