tires RAM CHASSIS CAB 2009 Owners Manual

Airbag Warning Light
The airbag warning light should come on, and remain on,
for six to eight seconds as a bulb check when the ignition
switch is first turned ON. If the light is not lit during
starting, see your authorized dealer. If the light stays on,
flickers or comes on while driving, have the system
checked by an authorized dealer. If there is a problem
with the airbag warning light, the seat belt light will
flash.
Safety Checks You Should Make Outside The
Vehicle
Tires
Examine tires for tread wear or uneven wear patterns.
Check for stones, nails, glass or other objects lodged in
the tread.
Inspect for tread cuts or sidewall cracks. Check wheel
nuts for tightness and tires for proper pressure.
Lights
Check the operation of all exterior lights. Check turn
signal and high beam indicator lights on the instrument
panel.
Door Latches
Check for positive closing, latching and locking.
Fluid Leaks
Check area under vehicle after overnight parking for fuel,
water, oil, or other fluid leaks. Also, if fuel fumes are
detected the cause should be located and corrected.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 75
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\4Electronically Shifted Transfer Case
Operating Information/Precautions (4
Position Switch) — If Equipped .......... 242
\4 Shifting Procedure — Electronically Shifted
Transfer Case ....................... 246
\2 Limited-Slip Differential – If Equipped ...... 249
\2 Driving On Slippery Surfaces ............. 250
\2 Driving Through Water ................. 250
\4 Flowing/Rising Water ................. 250
\4 Shallow Standing Water ............... 251
\2 Power Steering ....................... 252
\4 Power Steering Fluid Check ............. 253
\2 Parking Brake ........................ 254
\2 Brake System ........................ 255 \4
Four-Wheel Anti-Lock Brake System ....... 256
\2 Tire Safety Information ................. 258
\4 Tire Markings ....................... 258
\4 Tire Identification Number (TIN) ......... 261
\4 Tire Loading And Tire Pressure .......... 262
\2 Tires — General Information ............. 266
\4 Tire Pressure ....................... 266
\4 Tire Inflation Pressures ................ 267
\4 Radial Ply Tires ..................... 272
\4 Tire Spinning ....................... 273
\4 Tread Wear Indicators ................. 273
\4 Life Of Tire ........................ 274
\4 Replacement Tires .................... 274
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\2Supplemental Tire Pressure Information —
If Equipped .......................... 276
\2 Tire Chains .......................... 276
\2 Snow Tires .......................... 278
\2 Tire Rotation Recommendations ........... 279
\4 Dual Rear Wheels .................... 280
\2 Fuel Requirements ..................... 281
\4 5.7L Gas Engine ..................... 281
\2 Adding Fuel ......................... 285
\4 Loose Fuel Filler Cap (Gas Cap) Message . . . 286
\2 Vehicle Loading ...................... 287
\4 Certification Label ................... 287
\2 Trailer Towing ........................ 289 \4
Common Towing Definitions ............ 289
\4 Trailer Hitch Classification .............. 292
\4 Trailer Towing Weights (Maximum Trailer
Weight Ratings) ..................... 293
\4 Trailer And Tongue Weight ............. 294
\4 Towing Requirements ................. 295
\4 Towing Tips ........................ 299
\2 Snowplow .......................... 300
\4 Before Plowing ...................... 301
\4 Snowplow Prep Package Model Availability . 302
\4 Over The Road Operation With Snowplow
Attached .......................... 303
\4 Operating Tips ...................... 303
\4 General Maintenance .................. 303
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at a given road speed. Take care not to overspeed the
engine and do not exceed 25 mph (40 km/h).
Proper operation of 4-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference will adversely affect shifting and can
cause damage to the transfer case.
NOTE:Do not attempt to make a shift while only the
front or rear wheels are spinning. The transfer case is not
equipped with a synchronizer and therefore the front and
rear driveshaft speeds must be equal for the shift to take
place. Shifting while only the front or rear wheels are
spinning can cause damage to the transfer case.
Because 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit. NOTE:
Delayed shifts out of four-wheel drive may be
experienced due to uneven tire wear, low or uneven tire
pressures, excessive vehicle loading, or cold tempera-
tures.
WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
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Proper operation of 4-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference in tire size can cause damage to the
transfer case.
Because 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit.
WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.For additional information on the appropriate use of each
transfer case mode position see the information below:
2WD
Rear-Wheel Drive High Range - Normal street and
highway driving. Dry hard surfaced roads.
4WD AUTO
Automatic 4–wheel drive sends power to the rear wheels.
4–wheel drive will be automatically engaged when the
vehicle senses a loss of traction. Additional traction for
varying road conditions.
4WD LOCK
4-Wheel Drive Lock Range - Locks the front and rear
driveshafts together. Forces the front and rear wheels to
rotate at the same speed. Additional traction for loose,
slippery road surfaces only.
238 STARTING AND OPERATING

4WD LOCK positions at a given road speed. Take care
not to overspeed the engine and do not exceed 25 mph
(40 km/h).
Proper operation of 4-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference in tire size can cause damage to the
transfer case.
Because 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit.WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.
For additional information on the appropriate use of each
transfer case mode position see the information below:
2WD
Rear Wheel Drive High Range - Normal street and
highway driving. Dry, hard surfaced roads.
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DRIVING ON SLIPPERY SURFACES
When driving on wet or slushy roads, it is possible for a
wedge of water to build up between the tire and road
surface. This is known as hydroplaning and may cause
partial or complete loss of vehicle control and stopping
ability. To reduce this possibility, the following precau-
tions should be observed:
1. Slow down during rainstorms or when roads are
slushy.
2. Slow down if the road has standing water or puddles.
3. Replace tires when tread wear indicators first become
visible.
4. Keep tires properly inflated.
5. Maintain sufficient distance between your vehicle and
the car in front of you to avoid a collision in a sudden
stop.DRIVING THROUGH WATER
Driving through water more than a few inches/
centimeters deep will require extra caution to ensure
safety and prevent damage to your vehicle.
Flowing/Rising Water
WARNING!
Do not drive on or cross a road or a path where water
is flowing and/or rising (as in storm run-off). Flow-
ing water can wear away the road or path’s surface
and cause your vehicle to sink into deeper water.
Furthermore, flowing and/or rising water can carry
your vehicle away swiftly. Failure to follow this
warning may result in injuries that are serious or
fatal to you, your passengers, and others around you.
250 STARTING AND OPERATING

Four-Wheel Anti-Lock Brake System
WARNING!
•Anti-Lock Brake Systems (ABS) contain sophisti-
cated electronic equipment. It may be susceptible
to interference caused by improperly installed or
high output radio transmitting equipment. This
interference can cause possible loss of anti-lock
braking capability. Installation of such equipment
should be performed by qualified professionals.
•ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase
braking or steering efficiency beyond that af-
forded by the condition of the vehicle brakes and
tires or the traction afforded.(Continued)
WARNING! (Continued)
•The ABS cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful driver
can prevent accidents.
•The capabilities of an ABS equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety
or the safety of others.
This ABS is designed to aid the driver in maintaining
vehicle control under adverse braking conditions. The
system operates with a separate computer to modulate
hydraulic pressure to prevent wheel lockup and help
avoid skidding on slippery surfaces.
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TIRE SAFETY INFORMATION
Tire MarkingsNOTE:
•P (Passenger) - Metric tire sizing is based on U.S.
design standards. P-Metric tires have the letter “P”
molded into the sidewall preceding the size designa-
tion. Example: P215/65R15 95H.
•European-Metric tire sizing is based on European
design standards. Tires designed to this standard have
the tire size molded into the sidewall beginning with
the section width. The letter\6P\6is absent from this tire
size designation. Example: 215/65R15 96H.
•LT (Light Truck) - Metric tire sizing is based on U.S.
design standards. The size designation for LT-Metric
tires is the same as for P-Metric tires except for the
letters “LT” that are molded into the sidewall preced-
ing the size designation. Example: LT235/85R16.
•Temporary spare tires are high-pressure compact
spares designed for temporary emergency use only.
Tires designed to this standard have the letter “T”
1 — U.S. DOT Safety Stan-
dards Code (TIN) 4 — Maximum Load
2 — Size Designation 5 — Maximum Pressure
3 — Service Description 6 — Treadwear, Traction and Temperature Grades
258 STARTING AND OPERATING

Tire Identification Number (TIN)
The TIN may be found on one or both sides of the tire,
however, the date code may only be on one side. Tires
with white sidewalls will have the full TIN, including the
date code, located on the white sidewall side of the tire.Look for the TIN on the outboard side of black sidewall
tires as mounted on the vehicle. If the TIN is not found on
the outboard side, then you will find it on the inboard
side of the tire.
EXAMPLE:
DOT MA L9 ABCD 0301
DOT = Department of Transportation
— This symbol certifies that the tire is in compliance with the U.S. Department of Transportation tire
safety standards and is approved for highway use
MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)
03 = Number representing the week in which the tire was manufactured (two digits)
—03 means the 3rd week.
01 = Number representing the year in which the tire was manufactured (two digits)
—01 means the year 2001
— Prior to July 2000, tire manufacturers were only required to have one number to represent the year
in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991
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