WARNING!
•Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspen-
sion dimensions and performance characteristics,
resulting in changes to steering, handling, and brak-
ing of your vehicle. This can cause unpredictable
handling and stress to steering and suspension com-
ponents. You could lose control and have a collision
resulting in serious injury or death. Use only the tire
and wheel sizes with load ratings approved for your
vehicle.
• Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have a collision.
• Failure to equip your vehicle with tires having ad-
equate speed capability can result in sudden tire
failure and loss of vehicle control.
CAUTION!
Replacing original tires with tires of a different size may
result in false speedometer and odometer readings.
TIRE CHAINS (TRACTION DEVICES)
Use of traction devices require sufficient tire-to-body clear-
ance. Follow these recommendations to guard against
damage.
• Traction device must be of proper size for the tire, as
recommended by the traction device manufacturer.
528 STARTING AND OPERATING
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 and
rear 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.
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 weight values 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.
550 STARTING AND OPERATING
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tempo-
rary) loaded in or on the trailer in itsloaded 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.
WARNING!
If the gross trailer weight is 5,000 lbs (2 267 kg) or more,
it is recommended to use a weight-distributing hitch to
ensure stable handling of your vehicle. If 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 infor-
mation.
WARNING!
It is important that you do not exceed the maximum
front or rear GAWR. A dangerous driving condition
can result if either rating is exceeded.
Tongue Weight (TW)
The tongue weight is the downward force exerted on the
hitch ball by the trailer. You must consider this as part of
the load on your vehicle.
Frontal Area
The frontal area is the maximum height multiplied by the
maximum width of the front of a trailer.
552 STARTING AND OPERATING
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 Operat-
ing” for proper tire inflation procedures.
• Check the trailer tires for proper tire inflation pressures
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 Informa-
tion” in “Starting And Operating” for proper tire re-
placement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements — Trailer Brakes
WARNING!
• Do not connect trailer brakes to your vehicle’s hy-
draulic brake lines. It can overload your brake sys-
tem 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 dis-
tance. When towing you should allow for additional
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 (453 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.
5
STARTING AND OPERATING 561
Snowplow Prep Package Model Availability
For Information about snowplow applications visit
www.ramtrucks.com or refer to the current Body Builders
Guide.
1. The maximum number of occupants in the truck shouldnot 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 sys-
tem, all aftermarket accessories, driver, passengers, op-
tions, and cargo, must not exceed either the Gross Vehicle
Weight (GVWR) or Gross Axle Weight (GAWR) ratings.
These weights are specified on the Safety Compliance
Certification Label on the driver’s side door opening.
NOTE: Detach the snowplow when transporting passen-
gers. Vehicle front end wheel alignment was set to specifications
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.
Maintain and operate your vehicle and snowplow equip-
ment following the recommendations provided by the
specific snowplow manufacturer.
Over The Road Operation With Snowplow Attached
The blade restricts air flow to the radiator and causes the
engine to operate at higher than normal temperatures.
Therefore, when transporting the plow, angle the blade
completely and position it as low as road or surface
conditions permit. Do not exceed 40 mph (64 km/h). The
operator should always maintain a safe stopping distance
and allow adequate passing clearance.
570 STARTING AND OPERATING
Enhanced Accident Response Feature..........66, 630
Entry System, Illuminated .....................21
Ethanol ............................. .542, 545
Exhaust Gas Caution .....................95, 545
Exhaust System ........................ .95, 660
Exterior Lighting .......................... .139
Exterior Lights .............................98
Filters Air Cleaner ............................ .643
Air Conditioning .....................347, 650
Engine Oil ......................... .642, 698
Engine Oil Disposal ...................... .642
Flashers Turn Signal ...................... .98, 146, 263
Flat Tire Stowage ...................... .596, 613
Flexible Fuel Vehicles Cruising Range ......................... .547
Engine Oil ............................ .546
Fuel Requirements ....................545, 546
Maintenance ........................... .547
Replacement Parts ....................... .547
Starting .............................. .547
Flooded Engine Starting ..................... .384
Fluid, Brake ............................. .701Fluid Capacities
........................... .697
Fluid Leaks ...............................98
Fluid Level Checks Brake ................................ .667
Power Steering ......................... .492
Fluids, Lubricants And Genuine Parts ............698
Fog Lights ........................ .142, 256, 691
Fold Flat Load Floor ....................... .202
Four-Way Hazard Flasher .....................580
Four Wheel Drive ......................... .414
Freeing A Stuck Vehicle ..................... .621
Front Axle (Differential) ..................... .668
Fuel ................................... .541
Adding .............................. .548
Additives ............................. .544
Clean
Air ............................. .542
Ethanol ........................... .542, 545
Filler Cap (Gas Cap) ..................... .549
Gasoline .............................. .541
Light ................................ .254
Materials Added ........................ .544
Methanol ............................. .542
Octane Rating ....................... .541, 698
Requirements ....................... .541, 697
Tank Capacity .......................... .697
720 INDEX
SteeringPower ......................... .490, 491, 492
Wheel, Heated ......................... .151
Wheel, Tilt ............................ .150
Steering Wheel Audio Controls .................327
Steering Wheel Mounted Sound System Controls . . . .327
Storage Compartment, Center Seat ..............195
Storage, Vehicle ....................... .346, 688
Storing Your Vehicle ....................... .688
Sun Roof ............................... .182
Suspension, Air ....................... .438, 444
Sway Control, Trailer ....................... .504
Synthetic Engine Oil ....................... .642
System, Remote Starting ......................29
Tailgate ................................ .220
Temperature Control, Automatic (ATC) ...........345
Tilt Down .................................119
Up ...................................119
Tilt Steering Column ....................... .150
Tip Start ................................ .382
Tire And Loading Information Placard ........513, 514
Tire Markings ............................ .508
Tires.......................... .98, 518, 523, 533Aging (Life Of Tires)
..................... .526
Air Pressure ........................ .513, 518
Chains ............................... .528
Compact Spare ......................... .523
Dual ............................. .532, 581
General Information ...................518, 523
High Speed ............................ .520
Inflation Pressures ....................... .519
Life Of Tires ........................... .526
Load Capacity ...................... .513, 515
Pressure Monitor System (TPMS) .............535
Pressure Warning Light ....................252
Quality Grading ........................ .533
Radial ............................... .520
Replacement ........................... .527
Rotation .............................. .530
Safety ............................ .508,
518
Sizes ................................ .509
Snow Tires ............................ .522
Spare Tire ...................... .523, 524, 525
Spinning .............................. .525
Tread Wear Indicators .....................526
Tire Safety Information ...................... .508
Tongue Weight/Trailer Weight .................559
Tonneau Cover ........................... .678
728 INDEX