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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 GrossTrailer 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, cargoand
hitch - 4,103 lb. (1861 kg).
● Gross Vehicle Weight Rating (GVWR) from
F.M.V.S.S./C.M.V.S.S. certification label -
4,203 lb. (1906 kg).
● Maximum Towing Load from “Towing
Load/SpecificationЉ chart - 1,000 lb.
(454 kg).
4,203 lb. (1906 kg) GVWR
– 4,103 lb. (1861 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% ofthe trailer weight. If the tongue
load becomes excessive, rearrange the cargo to
obtain the proper tongue load. Do not exceed the
10 - 15% tongue weight specification 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.
9-18 Technical and consumer information
੬ REVIEW COPY—
2008 Altima (alt)
Owners Manual—USA_English (nna)
02/15/08—tbrooks
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