tire pressure RAM CHASSIS CAB 2011 Owners Manual

Periodic Safety Checks You Should Make Outside
the Vehicle
Tires
Examine tires for excessive tread wear and uneven wear
patterns. Check for stones, nails, glass, or other objects
lodged in the tread. Inspect the tread and sidewall for
cuts and cracks. Check the wheel nuts for tightness.
Check the tires (including spare) for proper pressure.
Lights
Have someone observe the operation of exterior lights
while you work the controls. 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,
engine coolant, oil, or other fluid leaks. Also, if gasoline
fumes are detected or if fuel, power steering fluid, or
brake fluid leaks are suspected, the cause should be
located and corrected immediately.76 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE

Electronic Vehicle Information Center (EVIC)
Displays
When the appropriate conditions exist, the EVIC displays
the following messages:
• Left front turn signal lamp out
• Right front turn signal lamp out
• Left rear turn signal lamp out
• Right rear turn signal lamp out
• Service air filter
• Check Tire Pressure
• Perform service
• ESP Off
• Service Tire Pressure System
• Coolant Low • Check Trailer Brake Wiring
• Service Trailer Brake System
• Trailer Brake Connected
• Trailer Brake Disconnected
• Lights On
• Keyfob Battery Low
• ECO (Fuel Saver Indicator) — If Equipped
• Door(s) Ajar (with a single chime, if vehicle is in
motion)
• Wrong Key
• Damaged Key
• Key not programmed
• Key In Ignition 4 UNDERSTANDING YOUR INSTRUMENT PANEL 195

▫ Electronically Shifted Transfer Case
(Four-Position Switch) – If Equipped ....... 278
▫ Shifting Procedure ................... 282
 Limited-Slip Differential ................. 284
 Driving On Slippery Surfaces ............. 285
 Driving Through Water ................. 285
▫ Flowing/Rising Water ................. 286
▫ Shallow Standing Water ............... 286
 Power Steering ....................... 288
▫ Power Steering Fluid Check ............. 289
 Parking Brake ........................ 289
 Brake System ........................ 292
▫ Dual Rear Wheel Models Only ........... 292 ▫ Four-Wheel Anti-Lock Brake System ....... 292
 Tire Safety Information ................. 294
▫ Tire Markings ....................... 294
▫ Tire Identification Number (TIN) ......... 298
▫ Tire Terminology And Definitions ......... 299
▫ Tire Loading And Tire Pressure .......... 300
 Tires — General Information ............. 304
▫ Tire Pressure ....................... 304
▫ Tire Inflation Pressures ................ 305
▫ Radial Ply Tires ..................... 309
▫ Tire Spinning ....................... 309
▫ Tread Wear Indicators ................. 310
▫ Life Of Tire ........................ 310260 STARTING AND OPERATING

▫ Replacement Tires .................... 311
 Supplemental Tire Pressure Information —
If Equipped .......................... 313
 Tire Chains .......................... 313
 Snow Tires .......................... 315
 Tire Rotation Recommendations ........... 315
▫ Dual Rear Wheels .................... 316
 Fuel Requirements ..................... 317
▫ Reformulated Gasoline ................ 318
▫ Gasoline/Oxygenate Blends ............. 318
▫ E-85 Usage In Non-Flex Fuel Vehicles ...... 319
▫ MMT In Gasoline .................... 319
▫ Materials Added To Fuel ............... 320 ▫ Fuel System Cautions ................. 320
▫ Carbon Monoxide Warnings ............ 321
 Adding Fuel ......................... 322
▫ Loose Fuel Filler Cap Message ........... 323
 Vehicle Loading ...................... 324
▫ Certification Label ................... 324
 Trailer Towing ........................ 326
▫ Common Towing Definitions ............ 326
▫ Trailer Hitch Classification .............. 329
▫ Trailer Towing Weights
(Maximum Trailer Weight Ratings) ........ 330
▫ Trailer And Tongue Weight ............. 330
▫ Towing Requirements ................. 331
5 STARTING AND OPERATING 261

Because four-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. For additional information on the appropriate use of each
transfer case mode position, see the information below:
2H
Rear-Wheel Drive High Range - This range is for normal
street and highway driving on dry hard surfaced roads.
4H
Four-Wheel Drive High Range - This range locks the
front and rear driveshafts together forcing the front and
rear wheels to rotate at the same speed. Additional
traction for loose, slippery road surfaces only.
N
Neutral - This range disengages the front and rear
driveshafts from the powertrain. To be used for flat
towing behind another vehicle. Refer to “Recreational
Towing” in “Starting and Operating” for further
information.276 STARTING AND OPERATING

WARNING! (Continued)• The Anti-Lock Brake System (ABS) cannot prevent
the natural laws of physics from acting on the
vehicle, nor can it increase braking or steering
efficiency beyond that afforded by the condition
of the vehicle brakes and tires or the traction
afforded.
• The ABS cannot prevent accidents, including
those resulting from excessive speed in turns,
following another vehicle too closely, or hydro-
planing.
• 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. TIRE SAFETY INFORMATION
Tire Markings
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 Grades294 STARTING AND OPERATING

NOTE:
• 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  P  is 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”
molded into the sidewall preceding the size designa-
tion. Example: T145/80D18 103M.
• High flotation tire sizing is based on U.S. design
standards and it begins with the tire diameter molded
into the sidewall. Example: 31x10.5 R15 LT.
5 STARTING AND OPERATING 295

EXAMPLE:
Service Description:
95 = Load Index
— A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
— A symbol indicating the range of speeds at which a tire can carry a load corresponding
to its load index under certain operating conditions
— The maximum speed corresponding to the speed symbol should only be achieved under
specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and
posted speed limits)
Load Identification:
 ....blank....  = Absence of any text on the sidewall of the tire indicates a Standard Load (SL) tire
Extra Load (XL) = Extra load (or reinforced) tire
Light Load = Light load tire
C, D, E = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load — Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure — Maximum pressure indicates the maximum permissible cold tire inflation pressure for
this tire
5 STARTING AND OPERATING 297

Tire Terminology and Definitions
Term Definition
B-Pillar The vehicle B-Pillar is a structural member of the body located
between the front and rear door (of a four-door vehicle) running
from the sill to the roof.
Cold Tire Pressure Cold tire inflation pressure is defined as the tire pressure after the
vehicle has not been driven for at least 3 hours, or driven less
than 1 mile (1.6 km) after sitting for a three hour period. Inflation
pressure is measured in units of PSI (pounds per square inch) or
KPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold
tire inflation pressure for this tire. The max inflation pressure is
molded into the sidewall.
Recommended Inflation Pressure Vehicle manufacturer’s recommended tire inflation pressure as
shown on the tire placard.
Tire Placard A paper label permanently attached to the vehicle showing the
vehicle’s loading capacity, the original equipment tire size and the
recommended inflation pressure.
5 STARTING AND OPERATING 299

Tire Loading and Tire Pressure
Tire Placard Location
NOTE: The proper cold tire inflation pressure is listed
on the driver’s side B-Pillar. Tire and Loading Information Placard
Tire Placard Location Tire and Loading Information Placard300 STARTING AND OPERATING