2018 Ram 3500 Chassis Cab tire pressure

Life Of Tire
The service life of a tire is dependent upon varying factors
including, but not limited to:
•Driving style.
• Tire pressure - Improper cold tire inflation pressures can
cause uneven wear patterns to develop across the tire
tread. These abnormal wear patterns will reduce tread
life, resulting in the need for earlier tire replacement.
• Distance driven.
• Performance tires, tires with a speed rating of V or
higher, and Summer tires typically have a reduced tread
life. Rotation of these tires per the vehicle scheduled
maintenance is highly recommended.
WARNING!
Tires and the 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 a collision 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 pressures. The manu-
facturer strongly recommends that you use tires equivalent
to the originals in size, quality and performance when
replacement is needed. Refer to the paragraph on “Tread
Wear Indicators” in this section. Refer to the Tire and
Loading Information placard or the Vehicle Certification
Label for the size designation of your tire. The Load Index
and Speed Symbol for your tire will be found on the
original equipment tire sidewall.
See the Tire Sizing Chart example found in the “Tire Safety
Information” section of this manual for more information
relating to the Load Index and Speed Symbol of a tire.
It is recommended to replace the two front tires or two rear
tires as a pair. Replacing just one tire can seriously affect
your vehicle’s handling. If you ever replace a wheel, make
sure that the wheel’s specifications match those of the
original wheels.
406 SERVICING AND MAINTENANCE

Summer Or Three Season Tires — If Equipped
Summer tires provide traction in both wet and dry condi-
tions, and are not intended to be driven in snow or on ice.
If your vehicle is equipped with Summer tires, be aware
these tires are not designed for Winter or cold driving
conditions. Install Winter tires on your vehicle when am-
bient temperatures are less than 40°F (5°C) or if roads are
covered with ice or snow. For more information, contact an
authorized dealer.
Summer tires do not contain the all season designation or
mountain/snowflake symbol on the tire sidewall. Use
Summer tires only in sets of four; failure to do so may
adversely affect the safety and handling of your vehicle.
WARNING!
Do not use Summer tires in snow/ice conditions. You
could lose vehicle control, resulting in severe injury or
death. Driving too fast for conditions also creates the
possibility of loss of vehicle control.
Snow Tires
Some areas of the country require the use of snow tires
during the Winter. Snow tires can be identified by a
“mountain/snowflake” symbol on the tire sidewall.If you need snow tires, select tires
equivalent in size and type to the origi-
nal equipment tires. Use snow tires only
in sets of four; failure to do so may
adversely affect the safety and handling
of your vehicle.
Snow tires generally have lower speed ratings than what
was originally equipped with your vehicle and should not
be operated at sustained speeds over 75 mph (120 km/h).
For speeds above 75 mph (120 km/h) refer to original
equipment or an authorized tire dealer for recommended
safe operating speeds, loading and cold tire inflation
pressures.
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 prohibit stud-
ded tires; therefore, local laws should be checked before
using these tire types.
408 SERVICING AND MAINTENANCE

Limited Use Spare — If Equipped
The limited use spare tire is for temporary emergency use
only. This tire is identified by a label located on the limited
use spare wheel. This label contains the driving limitations
for this spare. This tire may look like the original equipped
tire on the front or rear axle of your vehicle, but it is not.
Installation of this limited use spare tire affects vehicle
handling. Since it is not the same as your original equip-
ment tire, replace (or repair) the original equipment tire
and reinstall on the vehicle at the first opportunity.
WARNING!
Limited use spares are for emergency use only. Instal-
lation of this limited use spare tire affects vehicle
handling. With this tire, do not drive more than the
speed listed on the limited use spare wheel. Keep
inflated to the cold tire inflation pressures listed on
your Tire and Loading Information Placard located on
the driver ’s side B-Pillar or the rear edge of the driver ’s
side door. Replace (or repair) the original equipment
tire at the first opportunity and reinstall it on your
vehicle. Failure to do so could result in loss of vehicle
control.
Wheel And Wheel Trim Care
All wheels and wheel trim, especially aluminum and
chrome plated wheels, should be cleaned regularly using
mild (neutral Ph) soap and water to maintain their luster
and to prevent corrosion. Wash wheels with the same soap
solution recommended for the body of the vehicle.
Your wheels are susceptible to deterioration caused by salt,
sodium chloride, magnesium chloride, calcium chloride,
etc., and other road chemicals used to melt ice or control
dust on dirt roads. Use a soft cloth or sponge and mild soap
to wipe away promptly. Do not use harsh chemicals or a
stiff brush. They can damage the wheel’s protective coating
that helps keep them from corroding and tarnishing.
CAUTION!
Avoid products or automatic car washes that use acidic
solutions or strong alkaline additives or harsh brushes.
Many aftermarket wheel cleaners and automatic car
washes may damage the wheel’s protective finish.
Such damage is not covered by the New Vehicle
Limited Warranty. Only car wash soap, Mopar Wheel
Cleaner or equivalent is recommended.
8
SERVICING AND MAINTENANCE 411

Dual Rear Wheels
The tires used on dual wheel assemblies should be
matched for wear to prevent overloading one tire in a set.
To check if tires are even, lay a straight edge across all four
tires. The straight edge should touch all the tires.
NOTE:If your vehicle is equipped with a Tire Pressure
Information System (TPIS):
• The Tire Pressure Information System (TPIS) uses
unique sensors in the inner rear wheels to help identify
them from the outer rear wheels, because of this, the
inner and outer wheel locations can’t be switched. •
After a tire rotation is completed, as shown below, the
system can auto learn the locations of each sensor ID.
Auto learning/localization occurs when the vehicle ig-
nition status is changed from Off to On and speeds of
greater than 5 mph (8km/h) are obtained and remain
over 5mph (8km/h) for at about a 15 minute period. You
may need to drive for 20 minutes to account slower
speeds and stops.
• If the tires are rotated incorrectly, the Auto localization of
the TPIS sensors will fail to locate correctly resulting in
incorrect locations for the pressure values displayed in
the Instrument Cluster.
CAUTION!
• 4500/5500 Dual Rear Tires may only have one ap-
proved direction of rotation. This is to accommodate
the asymmetrical design (tread pattern) of the On/
Off road tire.
• When replacing a flat, the spare tire may have to be
remounted on the rim or installed at a different
location to maintain the correct placement of the tire
on the wheel relative to the tire/wheel position on
the vehicle. For example, if the spare is used to
(Continued)
Tire Rotation
8
SERVICING AND MAINTENANCE 415

Adding Engine Coolant (Antifreeze).............383
Adding Fuel ............................. .287
Additives, Fuel ........................ .288, 428
Adjust Down .............................. .45, 46
Forward ............................ .44, 46
Rearward ........................... .44, 46
Up ................................ .45, 46
Adjustable Pedals ...........................57
Air Bag Air Bag Operation ....................... .196
Air Bag Warning Light .....................193
Enhanced Accident Response .............203, 353
Event Data Recorder (EDR) .................353
If A Deployment Occurs ....................201
Knee Impact Bolsters ..................... .197
Maintaining Your Air Bag System .............203
Transporting Pets ....................... .230
Air Bag Light ...................... .147, 193, 232
Air Bag Maintenance ....................... .203
Air Cleaner, Engine (Engine Air Cleaner Filter) ......366
Air Conditioner Maintenance ..................369
Air Conditioning ............................80
Air Conditioning Filter ....................94, 370
Air Conditioning, Operating Tips ................93Air Conditioning Refrigerant
...............369, 370
Air Conditioning System ...................92, 369
Air Filter ............................... .366
Air Pressure, Tires ......................... .403
Alarm, Panic ...............................22
Alarm (Security Alarm) ....................33, 148
Alarm System (Security Alarm) .................33
Alterations/Modifications, Vehicle ................7
Antifreeze (Engine Coolant) ...................382
Capacities ............................. .432
Disposal .............................. .385
Anti-Lock Brake System (ABS) .................160
Anti-Lock Warning Light .....................153
Ashtray ................................ .123
Assist,

Hill Start .......................... .162
Audio Systems (Radio) ...................... .439
Auto Down Power Windows ...................96
Automatic Door Locks ........................39
Automatic Headlights ........................70
Automatic High Beams .......................69
Automatic Temperature Control (ATC) ............92
Automatic Transmission Adding Fluid .......................... .389
Fluid And Filter Changes ...................390
Fluid Level Check .....................387, 388
510 INDEX

Fluid Type......................... .387, 435
Shifting .............................. .247
Special Additives ........................ .388
Axle Fluid ........................ .390, 391, 435
Axle Lubrication ....................... .390, 391
Back-Up ................................ .284
Back-Up Camera .......................... .284
Battery .............................. .149, 363
Charging System Light ....................149
Keyless Key Fob Replacement ................22
Belts, Seat ............................... .232
Body Builders Guide ..........................7
Body Mechanism Lubrication ..................376
B-Pillar Location .......................... .398
Brake Assist System ........................ .162
Brake Control System, Electronic ................161
Brake Fluid .......................... .386, 435
Brake System ......................... .386, 424
Fluid Check ........................... .386
Master Cylinder ........................ .386
Parking .............................. .243
Warning Light .......................... .147
Brake/Transmission Interlock ..................246
Bulb Replacement ......................... .323Bulbs, Light
.......................... .234, 323
Cab Top Clearance Lights .....................328
Camera ................................ .284
Camera, Rear ............................ .284
Capacities, Antifreeze (Engine Coolant) ...........432
Capacities, Fluid .......................... .432
Caps, Filler Oil (Engine) ........................ .362, 366
Power Steering ......................... .267
Radiator (Coolant Pressure) .................384
Carbon Monoxide Warning ................231, 431
Cargo Light ...............................
73
Car Washes .............................. .418
Cellular Phone ........................... .483
Center High Mounted Stop Light ...............326
Center Seat Storage Compartment ...............109
Changing A Flat Tire ....................... .337
Chart, Tire Sizing .......................... .394
Check Engine Light (Malfunction Indicator Light). . . .157
Checking Your Vehicle For Safety ...............231
Checks, Safety ............................ .231
Child Restraint ........................... .204
Child Restraints Booster Seats ........................... .209
12
INDEX 511

Child Restraints........................ .204
Child Seat Installation ..................220, 221
How To Stow An Unused ALR Seat Belt ........218
Infants And Child Restraints ................207
Locating The LATCH Anchorages .............215
Lower Anchors And Tethers For Children .......211
Older Children And Child Restraints ...........208
Seating Positions ........................ .210
Cigar Lighter ............................ .123
Clean Air Gasoline ........................ .428
Cleaning Wheels ................................411
Climate Control ............................80
Manual ................................80
Cold Weather Operation ..................... .242
Compact Disc (CD) Maintenance ................501
Compact Spare Tire ........................ .409
Contract, Service .......................... .506
Coolant Pressure Cap (Radiator Cap) .............384
Cooling System ........................... .382
Adding Coolant (Antifreeze) .................383
Coolant Capacity ........................ .432
Coolant Level ....................... .382, 385
Disposal Of Used Coolant ..................385
Drain, Flush, And Refill ....................382 Inspection
............................. .385
Points To Remember ..................... .385
Pressure Cap ........................... .384
Radiator Cap .......................... .384
Selection Of Coolant (Antifreeze) ..........382, 433
Corrosion Protection ....................... .417
Cruise Light ............................. .156
Cupholders ...............................118
Customer Assistance ....................... .504
Customer Programmable Features ...............461
Daytime Running Lights ......................69
Dealer Service ............................ .364
Defr

oster, Rear Window .......................80
Defroster, Windshield .....................80, 232
Delay (Intermittent) Wipers ....................77
Diagnostic System, Onboard ...................156
Differential, Limited-Slip .....................263
Dipsticks Automatic Transmission ....................388
Power Steering ......................... .267
Disabled Vehicle Towing .....................350
Disposal Antifreeze (Engine Coolant) .................385
Door Ajar ............................... .150
512 INDEX

Passing................................70
Seat Belt Reminder ...................... .147
Security Alarm ......................... .148
Service ............................... .323
Tire Pressure Monitoring (TPMS) ..........152, 172
Traction Control ........................ .168
Transfer Case .......................... .258
Turn Signal ....................73, 155, 234, 324
Warning (Instrument Cluster Description) . . . .148, 155
Limited-Slip Differential ..................263, 391
Loading Vehicle ........................... .288
Tires................................. .398
Load Shed Battery Saver Mode ...................... .145
Battery Saver On ........................ .145
Electrical Load Reduction ...................145
Intelligent Battery Sensor ...................145
Locks Automatic Door ..........................39
Child Protection ..........................40
Power Door .............................36
Low Tire Pressure System .....................172
Lubrication, Body ......................... .376
Lug Nuts ............................ .341, 425Maintenance Free Battery
.....................363
Maintenance Schedule ...................... .357
Malfunction Indicator Light (Check Engine) . . . .150, 157
Manual, Service ........................... .508
Manual Transmission Fluid Level Check ....................... .391
Memory Feature (Memory Seat) .................41
Memory Seat ........................... .41, 47
Memory Seats And Radio .....................41
Methanol ............................... .429
Mirrors ..................................59
Electric Powered ..........................62
Heated .................................65
Memory ................................47
Outside ................................61
Rearview ........................ .59, 60, 318
Trailer Towing ...........................65
Modifications/Alterations,
Vehicle................7
Monitor, Tire Pressure System ..................172
Mopar Parts ............................. .507
Multi-Function Control Lever ...................69
Navigation System (Uconnect GPS) ..............284
New Vehicle Break-In Period ..................242
12
INDEX 517