2009 RAM CHASSIS CAB inflation pressure

These indicators are molded into the bottom of the tread
grooves. They will appear as bands when the tread depth
becomes 1/16 in (2 mm). When the tread is worn to the
tread wear indicators, the tire should be replaced.
Many states have laws requiring tire replacement at this
point.
Life of Tire
The service life of a tire is dependent upon varying
factors including, but not limited to:
•Driving style
•Tire pressure
•Distance driven
WARNING!
Tires and spare tire should be replaced after six years,
regardless of the remaining tread. Failure to follow
this warning can result in sudden tire failure. You
could lose control and have an accident resulting in
serious injury or death.
Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (refer to the paragraph on
“Tread Wear Indicators”). Refer to the Tire and Loading
274 STARTING AND OPERATING

WARNING! (Continued)
•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 an accident result-
ing in serious injury or death.
•Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control resulting in
serious injury or death.
CAUTION!
Replacing original tires with tires of a different size
may result in false speedometer and odometer read-
ings.
SUPPLEMENTAL TIRE PRESSURE INFORMATION
— IF EQUIPPED
A light load vehicle condition is defined as two passen-
gers [150 lbs (68 kg) each] plus 200 lbs (91 kg) of cargo.
Cold tire inflation pressures for a lightly loaded vehicle
will be found on the face of the driver’s door.
TIRE CHAINS
Use “Class U” chains or other traction aids that meet SAE
Type “U” specifications.
NOTE:Chains must be the proper size for the vehicle,
as recommended by the chain manufacturer.
CAUTION!
To avoid damage to your vehicle, tires or chains,
observe the following precautions:
(Continued)
276 STARTING AND OPERATING

•On 4X2 vehicles, class “U” snow chains are permitted
on the rear wheels only of vehicles equipped with
LT245/70R17, LT265/70R17, and LT235/80R17 size
tires.
•On 4X4 Single Rear Wheel (SRW) vehicles, class “U”
snow chains are permitted on the rear wheels only on
vehicles equipped with LT265/70R17.
CAUTION!
Do not use tire chains on the 4X2 front wheels of
SRW (Single Rear Wheels) equipped with LT245/
70R17, LT265/70R17 tires or 4X4 front tires of vehicles
equipped with LT265/70R17tires. There may not be
adequate clearance for the chains and you are risking
structural or body damage to your vehicle.
SNOW TIRES
Snow tires should be of the same size and type construc-
tion as the front tires. Consult the manufacturer of the
snow tire to determine any maximum vehicle speed
requirement associated with the tire. These tires should
always be operated at the vehicle maximum capacity
inflation pressures under any load condition.
While studded tires improve performance on ice, skid
and traction capability on wet or dry surfaces may be
poorer than that of non-studded tires. Some states pro-
hibit studded tires; therefore, local laws should be
checked before using these tire types.
278 STARTING AND OPERATING

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.
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.
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 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. 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.
288 STARTING AND OPERATING

•When hauling cargo or towing a trailer, do not over-
load your vehicle or trailer. Overloading can cause a
loss of control, poor performance or damage to brakes,
axle, engine, transmission, steering, suspension, chas-
sis structure or tires.
•Safety chains must always be used between your
vehicle and trailer. Always connect the chains to the
frame or hook retainers of the vehicle hitch. Cross the
chains under the trailer tongue and allow enough
slack for turning corners.
•Vehicles with trailers should not be parked on a grade.
When parking, apply the parking brake on the tow
vehicle. Put the tow vehicle automatic transmission in
PARK. With 4-wheel drive vehicles, make sure the
transfer case is not in NEUTRAL. Always, block or
\6chock\6the trailer wheels.
•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 utilized
(This requirement may limit the ability to always
achieve the 10% to 15% range of tongue weight as a
percentage of total trailer weight.)
Towing Requirements — Tires
\25
Do not attempt to tow a trailer while using a compact
spare tire.
\25Proper tire inflation pressures are essential to the safe
and satisfactory operation of your vehicle. Refer to
“Tires–General Information” in this section.
296 STARTING AND OPERATING

\25Also, check the trailer tires for proper tire inflation
pressures before trailer usage.
\25Check for signs of tire wear or visible tire damage
before towing a trailer. Refer to “Tires–General Infor-
mation” in this section.
\25When replacing tires, refer to “Tires–General Informa-
tion” in this section. Replacing tires with a higher load
carrying capacity will not increase the vehicle’s GVWR
and GAWR limits.
Towing Requirements — Trailer Brakes
\25
Do not interconnect the hydraulic brake system or
vacuum system of your vehicle with that of the trailer.
This could cause inadequate braking and possible
personal injury.
\25An 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.
\25Trailer brakes are recommended for trailers over
1,000 lbs (454 kg) and required for trailers in excess of
2,000 lbs (907 kg).
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.
STARTING AND OPERATING 297
5

HitchesTrailer Towing ........................ 292
Hoisting .............................. 326
Hood Release .......................... 121
Hub Caps ............................. 321
Ignition ............................... 12
Key ................................ 12
Ignition Key Removal ..................... 12
Illuminated Entry ........................ 20
Immobilizer (Sentry Key) ................... 15
Infant Restraint .......................... 60
Inflation Pressure Tires .................... 276
Inside Rearview Mirror .................... 81
Instrument Cluster .................... 161,162
Instrument Panel and Controls .............. 160
Instrument Panel Lens Cleaning ............. 363
Integrated Power Module (Fuses) ............ 364
Interior Appearance Care .................. 362 Interior Lights
.......................... 123
Intermittent Wipers (Delay Wipers) ........... 129
Introduction ............................. 4
Jack Location ........................... 315
Jump Starting .......................... 326
Key, Programming ........................ 17
Key, Replacement ........................ 16
Key, Sentry (Immobilizer) ................... 15
Keyless Entry System ...................... 21
Keys ................................. 12
Lane Change and Turn Signals .............. 127
Lap Belts .............................. 45
Lap/Shoulder Belts ....................... 36
LATCH (Lower Anchors and
Tether for CHildren) ...................... 64
Life of Tires ............................ 274
416 INDEX

Tether Anchor, Child Restraint.............64,67
Tilt Steering Column ..................... 130
Tip Start .............................. 222
Tire and Loading Information Placard ......262,276
Tire Identification Number (TIN) ............. 261
Tire Markings .......................... 258
Tire Safety Information .................... 258
Tires ............................ 75,266,406
Aging (Life of Tires) .................... 274
Air Pressure .......................... 266
Chains .............................. 276
Dual ............................ 280,322
General Information .................... 266
High Speed .......................... 271
Inflation Pressures ..................... 267
Life of Tires .......................... 274
Load Capacity ........................ 262
Quality Grading ....................... 406
Radial .............................. 272 Replacement
......................... 274
Rotation ............................ 279
Safety ........................... 258,266
Sizes ............................... 259
Snow Tires ........................... 278
Spinning ............................ 273
Steel Carcass Ply ...................... 269
Tread Wear Indicators ................... 273
Wheel Nut Torque ..................... 320
Tongue Weight/Trailer Weight .............. 294
Torque Converter Clutch .................. 229
Tow Hooks, Emergency ................... 330
Towing ............................... 289
24-Hour Towing Assistance ............... 100
Disabled Vehicle ....................... 331
Guide .............................. 293
Recreational .......................... 304
Weight .............................. 293
Towing Assistance ....................... 100
INDEX 423
10