2012 Ram 5500 Chassis Cab inflation pressure

Hour of manufacture. The bar code that appears on the
bottom of the label is your Vehicle Identification Number
(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 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 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.
348 STARTING AND OPERATING

Towing Requirements – Tires
•
Do not attempt to tow a trailer with less than the full
size 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 tirereplacement procedures. Replacing tires with a higher
load carrying capacity will not increase the vehicle’s
GVWR and GAWR limits.
Towing Requirements – Trailer Brakes
•
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.
•Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
2,000 lbs (907 kg).
5
STARTING AND OPERATING 357

Grocery Bag Retainer..................... 180
Gross Axle Weight Rating.................. 351
Gross Vehicle Weight Rating................ 350
Guide, Body Builders...................... 6
GVWR ............................... 348
Hands-Free Phone (Uconnect™).............. 93
Hazard
Driving Through Flowing, Rising, or Shallow
Standing Water...................... 306
Hazard Warning Flasher................... 380
Head Restraints......................... 139
Headlights............................ 447
Automatic......................... 148
Cleaning........................... 439
High Beam......................... 154
High Beam/Low Beam Select Switch...... 154
Lights On Reminder.................. 152
Passing............................ 154Switch ............................ 148
Heated Mirrors....................... 91,180
Heated Seats........................... 133
Heater............................... 263
Heater, Engine Block..................... 281
High Beam/Low Beam Select (Dimmer) Switch . . 154
Hitches
TrailerTowing ....................... 353
Hoisting .............................. 392
Hood Release.......................... 145
Hub Caps............................. 387
Ignition............................... 14
Key ............................. 12,14
Ignition Key Removal..................... 14
Illuminated Entry........................ 20
Immobilizer (Sentry Key)................... 16
Infant Restraint.......................... 65
Inflation Pressure Tires.................... 336
492 INDEX

Supplemental Tire Pressure Information........ 336
Synthetic Engine Oil...................... 412
System, Remote Starting.................... 26
Tachometer............................ 190
Temperature Control, Automatic (ATC)........ 267
Temperature Gauge, Engine Coolant.......... 190
Tether Anchor, Child Restraint............. 69,74
Tilt Steering Column..................... 157
Tip Start.............................. 280
Tire and Loading Information Placard......320,336
Tire Identification Number (TIN)............. 318
Tire Markings.......................... 315
Tire Safety Information.................... 315
Tires ............................ 82,324,483
Aging(LifeofTires) .................. 334
Air Pressure........................ 324
Chains............................ 336
Compact Spare...................... 331Dual...........................340,388
General Information.................. 324
High Speed......................... 329
Inflation Pressures.................... 325
LifeofTires ........................ 334
Load Capacity....................320,321
Quality Grading..................... 483
Radial............................ 330
Replacement........................ 334
Rotation........................... 339
Safety..........................315,324
Sizes ............................. 316
Snow Tires......................... 338
Spinning ........................... 333
Steel Carcass Ply..................... 327
Tread Wear Indicators................. 333
Wheel Nut Torque.................... 386
Tongue Weight/Trailer Weight.............. 354
Torque Converter Clutch.................. 293
500 INDEX