VEHICLE LOADING
Certification Label
As required by National Highway Traffic Safety Admin-
istration regulations, your vehicle has a certification label
affixed to the driver’s side door or pillar.
This label contains the month and year of manufacture,
Gross Vehicle Weight Rating (GVWR), Gross Axle Weight
Rating (GAWR) front and rear, and Vehicle Identification
Number (VIN). A Month-Day-Hour (MDH) number is
included on this label and indicates the Month, Day and
Hour of manufacture. The bar code that appears on the
bottom of the label is your VIN.
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your vehicle
including driver, passengers, vehicle, options and cargo.
The label also specifies maximum capacities of front andrear axle systems (GAWR). Total load must be limited so
GVWR and front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the
driver, all passengers, options and cargo.
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 in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
686 STARTING AND OPERATING
Tire Size
The tire size on the Vehicle Certification Label represents
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 weightvalues are determined by weighing your vehicle on a
commercial scale before any occupants or cargo are
added.
Loading
The actual total weight and the weight of the front and
rear of your vehicle at the ground can best be determined
by weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commer-
cial scale to insure 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. Weigh-
ing 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. 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
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STARTING AND OPERATING 687
exceed the GVWR. Refer to “Vehicle Loading/Vehicle
Certification Label” in “Starting And Operating” for
further information.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tem-
porary) loaded in or on the trailer in itsloaded and
ready for operationcondition.
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.
WARNING!
If the gross trailer weight is 5,000 lbs (2 267 kg) or
more, it is mandatory to use a weight-distributing
hitch to ensure stable handling of your vehicle. If
(Continued)
WARNING!(Continued)
you use a standard weight-carrying hitch, you could
lose control of your vehicle and cause a collision.
Gross Combination Weight Rating (GCWR)
The GCWR is the total permissible weight of your vehicle
and trailer when weighed in combination.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front and rear
axles. Distribute the load over the front and rear axles
evenly. Make sure that you do not exceed either front or
rear GAWR. Refer to “Vehicle Loading/Vehicle Certifica-
tion Label” in “Starting And Operating” for further
information.
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STARTING AND OPERATING 689
WARNING!(Continued)
•GCWR must not be exceeded.
•Total weight must be distributed between the tow
vehicle and the trailer such that the following four
ratings are not exceeded:
1. GVWR
2. GTW
3. GAWR
4. Tongue weight rating for the trailer hitch uti-
lized.
Towing Requirements — Tires
•Do not attempt to tow a trailer while using a compact
spare tire.•Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires – General Information” in “Starting And Oper-
ating” for proper tire inflation procedures.
•Check the trailer tires for proper tire inflation pres-
sures before trailer usage.
•Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires – General
Information” in “Starting And Operating” for the
proper inspection procedure.
•When replacing tires, refer to “Tires – General Infor-
mation” in “Starting And Operating” for proper tire
replacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
700 STARTING AND OPERATING
Towing Requirements — Trailer Brakes
WARNING!
•Do not connect trailer brakes to your vehicle’s
hydraulic brake lines. It can overload your brake
system and cause it to fail. You might not have
brakes when you need them and could have an
accident.
•Towing any trailer will increase your stopping
distance. When towing you should allow for addi-
tional space between your vehicle and the vehicle
in front of you. Failure to do so could result in an
accident.
CAUTION!
If the trailer weighs more than 1,000 lbs (454 kg)
loaded, it should have its own brakes and they
should be of adequate capacity. Failure to do this
could lead to accelerated brake lining wear, higher
brake pedal effort, and longer stopping distances.
•Donotinterconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
•An electronically actuated trailer brake controller is
required when towing a trailer with electronically
actuated brakes. When towing a trailer equipped with
a hydraulic surge actuated brake system, an electronic
brake controller is not required.
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STARTING AND OPERATING 701
•Check the runners and cutting edge for excessive wear.
The cutting edge should be ¼ to ½ in (6 cm to 1.2 cm)
above ground in snow plowing position.
•Check that snowplow lighting is connected and func-
tioning properly.
Snowplow Prep Package Model Availability
For Information about snowplow applications visit
www.ramtrucks.com or refer to the current Body Build-
ers Guide.
1. The maximum number of occupants in the truck
should not exceed two.
2. The total GVWR or the Front GAWR or the Rear
GAWR should never be exceeded.
3. Cargo capacity will be reduced by the addition of
options or passengers, etc.The loaded vehicle weight, including the snowplow
system, all aftermarket accessories, driver, passengers,
options, and cargo, must not exceed either the Gross
Vehicle Weight (GVWR) or Gross Axle Weight (GAWR)
ratings. These weights are specified on the Safety Com-
pliance Certification Label on the driver’s side door
opening.
NOTE:Detach the snowplow when transporting pas-
sengers.
Vehicle front end wheel alignment was set to specifica-
tions at the factory without consideration for the weight
of the plow. Front end toe-in should be checked and reset
if necessary at the beginning and end of the snowplow
season. This will help prevent uneven tire wear.
The blade should be lowered whenever the vehicle is
parked.
712 STARTING AND OPERATING
Flashers
Turn Signal.....................121, 183, 329
Flat Tire Stowage......................743, 764
Flexible Fuel Vehicles
Cruising Range.........................682
Engine Oil............................681
Fuel Requirements...................680, 681
Maintenance...........................683
Replacement Parts.......................682
Starting..............................682
Flooded Engine Starting....................480
Fluid, Brake.............................867
Fluid Capacities..........................861
Fluid Leaks.............................121
Fluid Level Checks
Brake................................823
Power Steering.........................615
Fluids, Lubricants And Genuine Parts...........863
Fog Lights........................178, 320, 853Fold Flat Load Floor.......................251
Four-Way Hazard Flasher...................725
Four Wheel Drive.........................522
Freeing A Stuck Vehicle.....................775
Front Axle (Differential).....................825
Fuel...................................674
Adding..............................683
Additives.............................678
Clean Air.............................676
Ethanol...........................676, 680
Filler Cap (Gas Cap).....................685
Gasoline..............................674
Light................................317
Materials Added........................678
Methanol.............................676
Octane Rating......................674, 863
Requirements......................
.674, 861
Tank Capacity..........................861
Fuel, Flexible............................680
898 INDEX
Dual.............................663, 726
General Information..................647, 653
High Speed...........................650
Inflation Pressures.......................648
Life Of Tires...........................657
Load Capacity......................642, 643
Pressure Monitor System (TPMS)............665
Pressure Warning Light...................314
Quality Grading........................887
Radial...............................650
Replacement...........................657
Rotation..............................662
Safety............................636, 647
Sizes................................637
Snow Tires............................652
Spare Tire.........................653, 655
Spinning.............................656
Tread Wear Indicators....................656
Tire Safety Information.....................636Tongue Weight/Trailer Weight................697
Tonneau Cover...........................837
Tonneau Cover Cleaning....................837
Torque Converter Clutch.................510, 521
Tow Hooks, Emergency.....................776
Towing.............................688, 781
Disabled Vehicle........................781
Guide...............................697
Recreational...........................714
Weight...............................697
Towing Vehicle Behind A Motorhome...........714
Traction................................588
Traction Control..........................625
Trailer Sway Control (TSC)..................632
Trailer Towing..........................
.688
Cooling System Tips.....................709
Hitches..............................696
Minimum Requirements..................698
Mirrors..............................144
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INDEX 909