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Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the
front and rear axles. The load must be distributed in the
cargo area so that the GAWR of each axle is not
exceeded.
Each axle GAWR is determined by the components in
the system with the lowest load carrying capacity (axle,
springs, tires or wheels). Heavier axles or suspension
components sometimes specified by purchasers for
increased durability do not necessarily increase the
vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label repre-
sents the actual tire size on your vehicle. Replacement
tires must be equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size
listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle
for all loading conditions up to full GAWR.
Curb Weight
The curb weight of a vehicle is defined as the total
weight of the vehicle with all fluids, including vehicle
fuel, at full capacity conditions, and with no occupants
or cargo loaded into the vehicle. The front and rear curb
weight values are determined by weighing your vehicle
on a commercial scale before any occupants or cargo
are added.
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The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be deter-
mined by weighing it when it is loaded and ready for
operation.
The entire vehicle should first be weighed on a commer-
cial scale to ensure that the GVWR has not been
exceeded. The weight on the front and rear of the
vehicle should then be determined separately to be
sure that the load is properly distributed over the front
and rear axle. Weighing the vehicle may show that the
GAWR of either the front or rear axles has been
exceeded but the total load is within the specified
GVWR and maximum Payload. If so, weight must be
shifted from front to rear or rear to front as appropriate
until the specified weight limitations are met. Store the
heavier items down low and be sure that the weight is
distributed equally. Stow all loose items securely before
driving.
Improper weight distributions can have an adverse
effect on the way your vehicle steers and handles and
the way the brakes operate.
WARNING!
Do not load your vehicle any heavier than the GVWR,
maximum payload or the maximum front and rear
GAWR. If you do, parts on your vehicle can break, or it
can change the way your vehicle handles. This could
cause you to lose control. Overloading can shorten
the life of your vehicle.
TRAILER TOWING
In this section you will find safety tips and information
on limits to the type of towing you can reasonably do
with your vehicle. Before towing a trailer, carefully
review this information to tow your load as efficiently
and safely as possible.
To maintain the New Vehicle Limited Warranty cover-
age, follow the requirements and recommendations in
this manual concerning vehicles used for trailer towing.
COMMON TOWING DEFINITIONS
The following trailer towing related definitions will assist
you in understanding the following information:
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle.
This includes driver, passengers, cargo and tongue
weight. The total load must be limited so that you do
not exceed the GVWR
page 120.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of
all cargo, consumables and equipment (permanent or
temporary) loaded in or on the trailer in its "loaded and
ready for operation" condition.
The recommended way to measure GTW is to put your
fully loaded trailer on a vehicle scale. The entire weight
of the trailer must be supported by the scale.
STARTING AND OPERATING 121
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