2023 RAM CHASSIS CAB tires

SERVICING AND MAINTENANCE405
(Continued)
TIRE ROTATION RECOMMENDATIONS
Tires on the front and rear axles of vehicles
operate at different loads and perform different
steering, driving, and braking functions. For these
reasons, they wear at unequal rates.
These effects can be reduced by timely rotation of
tires. The benefits of rotation are especially
worthwhile with aggressive tread designs such as
those on On/Off Road type tires. Rotation will
increase tread life, help to maintain mud, snow,
and wet traction levels, and contribute to a
smooth, quiet ride. For the proper maintenance intervals
Úpage 344.
More frequent rotation is permissible if desired.
The reasons for any rapid or unusual wear should
be corrected prior to rotation being performed.

Tire Rotation (Rearward Cross)
NOTE:On Canadian vehicles only, if your vehicle is
equipped with All-Season type tires on the front
and On/Off Road type tires mounted on the rear,
do not use a front to back rotation pattern. Instead,
rotate your tires side to side at the recommended
intervals.
WARNING!
Using tires of different size and type (M+S,
Snow) between front and rear axles can cause
unpredictable handling. You could lose control
and have a collision.
CAUTION!
To avoid damage to your vehicle or tires, observe
the following precautions:
Because of restricted traction device clear -
ance between tires and other suspension
components, it is important that only traction
devices in good condition are used. Broken
devices can cause serious damage. Stop the
vehicle immediately if noise occurs that could
indicate device breakage. Remove the
damaged parts of the device before further
use.
Install device as tightly as possible and then
retighten after driving about 0.5 mile
(0.8 km). Autosock devices do not require
retightening.
Do not exceed 30 mph (48 km/h).
Drive cautiously and avoid severe turns and
large bumps, especially with a loaded vehicle.
Do not drive for a prolonged period on dry
pavement.
Observe the traction device manufacturer’s
instructions on the method of installation,
operating speed, and conditions for use.
Always use the suggested operating speed of
the device manufacturer’s if it is less than
30 mph (48 km/h).
Do not use traction devices on a compact
spare tire.
CAUTION!
8

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406SERVICING AND MAINTENANCE
Dual Rear Wheels

Tire Rotation

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 loca -
tions 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 ignition status is
changed from Off to On and speeds of greater
than 5 mph (8 km/h) are obtained and remain
over 5 mph (8 km/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 local
-
ization of the TPIS sensors will fail to locate
correctly resulting in incorrect locations for the
pressure values displayed in the Instrument
Cluster.
DEPARTMENT OF TRANSPORTATION
UNIFORM TIRE QUALITY GRADES
The following tire grading categories
were established by the National
Highway Traffic Safety Administration.
The specific grade rating assigned by the
tire's manufacturer in each category is
shown on the sidewall of the tires on
your vehicle.
All passenger vehicle tires must conform
to Federal safety requirements in
addition to these grades.
TREADWEAR
The Treadwear grade is a comparative
rating, based on the wear rate of the tire
when tested under controlled conditions
on a specified government test course.
For example, a tire graded 150 would
wear one and one-half times as well on
the government course as a tire graded
100. The relative performance of tires
depends upon the actual conditions of
their use, however, and may depart
CAUTION!
4500/5500 Dual Rear Tires may only have
one approved 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 replace an
outer rear tire it will have to be remounted on
the rim so that the wheel is dished inward.
That way the tread design of asymmetrical
tires will maintain proper position.

23_DPF_OM_EN_USC_t.book Page 406

SERVICING AND MAINTENANCE407
significantly from the norm due to
variations in driving habits, service
practices, and differences in road
characteristics and climate.
TRACTION GRADES
The Traction grades, from highest to
lowest, are AA, A, B, and C. These grades
represent the tire's ability to stop on wet
pavement, as measured under
controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have poor
traction performance.
TEMPERATURE GRADES
The Temperature grades are A (the
highest), B, and C, representing the tire's
resistance to the generation of heat and
its ability to dissipate heat, when tested
under controlled conditions on a
specified indoor laboratory test wheel.
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden tire
failure. The grade C corresponds to a
level of performance, which all
passenger vehicle tires must meet
under the Federal Motor Vehicle Safety
Standard No. 109. Grades B and A
represent higher levels of performance
on the laboratory test wheel, than the
minimum required by law.
STORING THE VEHICLE
If you are storing your vehicle for more than three
weeks, we recommend that you take the following
steps to minimize the drain on your vehicle's
battery:
Disconnect the negative cable from battery.
Any time you store your vehicle or keep it out of
service (i.e., vacation) for two weeks or more,
run the air conditioning system at idle for about
five minutes in the fresh air and high blower
setting. This will ensure adequate system lubri-
cation to minimize the possibility of compressor
damage when the system is started again.
BODYWORK
PROTECTION FROM ATMOSPHERIC
A
GENTS
Vehicle body care requirements vary according to
geographic locations and usage. Chemicals that
make roads passable in snow and ice and those
that are sprayed on trees and road surfaces during
other seasons are highly corrosive to the metal in
your vehicle. Outside parking, which exposes your
vehicle to airborne contaminants, road surfaces on
which the vehicle is operated, extreme hot or cold
weather and other extreme conditions will have an
adverse effect on paint, metal trim, and underbody
protection.
WARNING!
The traction grade assigned to this tire is based
on straight-ahead braking traction tests, and
does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
WARNING!
The temperature grade for this tire is
established for a tire that is properly inflated and
not overloaded. Excessive speed, underinflation,
or excessive loading, either separately or in
combination, can cause heat buildup and
possible tire failure.
8

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412TECHNICAL SPECIFICATIONS
Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.
NOTE:Dual wheels are flat mounted, center piloted. The
lug nuts are a two-piece assembly. When the tires
are being rotated or replaced, clean these lug nuts
at the interface between the lug nut/bolt and the
washer. Do not oil wheel studs.

Two-Piece Lug Nut

Inspect the wheel mounting surface prior to
mounting the tire and remove any corrosion or
loose particles.
Wheel Mounting Surface

Retighten the wheel nuts, in the same pattern, to
the torques listed in the Torque Specifications
table. Go through the sequence a second time to
verify that specific torque has been achieved.
Retighten to specifications after 25 miles (40 km)
and check the lug nut/bolt torque to be sure that
all the lug nuts/bolts are properly tightened.
8/10 Lug Nuts/Bolts Torque Patterns

It is recommended that wheel stud nuts be kept
torqued to specifications at all times. Torque wheel
stud nuts to specifications at each lubrication
interval.
1 — 10 Bolt Pattern
2 — 8 Bolt Pattern

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428
INDEX
A
Adaptive Cruise Control (ACC)
(Cruise Control)
.................................... 148, 150Adding Engine Coolant (Antifreeze)............... 369Adding Fuel.................................................... 177Additives, Fuel............................................... 413AdjustDown........................................................... 33Forward....................................................... 33Rearward..................................................... 33Up................................................................ 33Adjustable Pedals............................................ 38Advance Phone Connectivity......................... 242Air BagAir Bag Operation...................................... 299Air Bag Warning Light................................ 297Enhanced Accident Response......... 302, 341Event Data Recorder (EDR)....................... 341If Deployment Occurs................................ 302Knee Impact Bolsters................................ 299Maintaining Your Air Bag System.............. 303Maintenance............................................. 303Redundant Air Bag Warning Light.............297Transporting Pets...................................... 322
Air Bag Light................................ 103, 297, 322Air Cleaner, Engine
(Engine Air Cleaner Filter).................... 355, 375Air Conditioner Maintenance........................ 357Air Conditioner Refrigerant........................... 357Air Conditioner System................................. 357Air Conditioning................................................ 62Air Conditioning Filter....................................... 65Air Conditioning System................................... 64Air Conditioning, Operating Tips....................... 64Air Filter........................................................ 355Air PressureTires......................................................... 397AlarmPanic........................................................... 16Security Alarm....................................23, 104Alterations/ModificationsVehicle......................................................... 10Antifreeze (Engine Coolant).......................... 368Capacities................................................. 418Disposal................................................... 370Anti-Lock Brake System (ABS)...................... 270Anti-Lock Warning Light................................ 108
Assist, Hill Start............................................. 276Audio Settings............................................... 230Audio Systems (Radio).................................. 199Auto Down Power Windows..............................75Automatic Door Locks......................................27Automatic Folding Mirrors................................44Automatic Headlights.......................................52Automatic Temperature Control (ATC)..............64Automatic Transmission....................... 132, 373Adding Fluid.............................................. 373Fluid And Filter Change............................. 373Fluid Change............................................. 373Fluid Level Check...................................... 372Fluid Type........................................ 373, 421Shifting..................................................... 135Special Additives...................................... 372Automatic Transmission Limp Home Mode... 133AutoPark....................................................... 113AUX Camera......................................... 173, 176Auxiliary Driving Systems.............................. 277Axle Fluid.............................................. 374, 421Axle Lubrication............................................ 374

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432 HomeLink® (Garage Door Opener)
.................. 47Hood Prop........................................................ 77Hood Release.................................................. 77Hub Caps....................................................... 332
I
Idle-Up Feature.............................................. 124Ignition............................................................ 18Switch......................................................... 18Inside Rearview Mirror............................ 39, 326Instrument Cluster........ 83, 84, 85, 86, 87, 89Descriptions.............................................. 110Display........................................................ 89Engine Oil Reset.......................................... 92Instrument Panel Lens Cleaning.................... 410Integrated Trailer Brake Control.................... 188Interior Appearance Care............................... 409Interior Lights.................................................. 55Intermittent Wipers (Delay Wipers).................. 57Intervention Regeneration Strategy........ 98, 364Inverter Outlet (115V)...................................... 72
J
Jack Location................................................ 329Jack Operation.............................................. 329Jacking And Tire Changing............................ 329Jacking And Tire Changing
b
...................... 329Jump Starting............................................... 333
K
Key Fob Panic Alarm
................................................. 16Programming Additional Key Fobs............... 17Key Fob Battery Service
(Remote Keyless Entry).................................... 16
Key Fob Programming (Remote Keyless Entry).. 17
Keyless Enter 'n Go™.................... 25, 115, 117Passive Entry............................................... 25Keys................................................................. 15
L
Lane Change And Turn Signals........................ 54Lane Change Assist......................................... 54LaneSense.................................................... 163Latches......................................................... 324Hood............................................................ 77
Lead Free Gasoline....................................... 413Leaks, Fluid................................................... 324Life Of Tires................................................... 399Light Bulbs........................................... 324, 384LIghtsElectrinic Power Steering Pump................ 105Oil Temperature........................................ 104Lights............................................................ 324Air Bag.................................... 103, 297, 322Automatic High Beam..................................52Brake Assist Warning................................ 274Brake Warning.......................................... 103Bulb Replacement.................................... 384Cab Top Clearance................................... 388Cargo...........................................................54Center Mounted Stop............................... 388Courtesy/Reading........................................55Cruise....................................................... 110Daytime Running.........................................52
Electronic Stability Program (ESP) Indicator.... 104
Exterior.............................................. 51, 324Fog............................................................ 387Four Wheel Drive Indicator....................... 147

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433
Hazard Warning Flasher
............................ 325Headlights............................................ 51, 52High Beam.................................................. 52Hill Descent Control Indicator.................... 274Interior........................................................ 55Lights On Reminder..................................... 54Low Fuel.................................................... 107Malfunction Indicator (Check Engine).......105Park........................................................... 110Passing........................................................ 52Seat Belt Reminder................................... 103Security Alarm........................................... 104Service...................................................... 384Traction Control......................................... 274Transfer Case............................................ 147Turn Signals.................... 54, 110, 324, 386Warning Instrument Cluster Descriptions................................ 104, 110Limited-Slip Differential....................... 147, 374Load Shed Battery Saver Mode..................... 101Load Shed Battery Saver On.......................... 101Load Shed Electrical Load Reduction............ 101Load Shed Intelligent Battery Sensor............ 101Loading Vehicle............................................. 180Tires.......................................................... 394
LocksAutomatic Door............................................ 27Child Protection........................................... 27Power Door.................................................. 24Low Tire Pressure System............................. 280Lubrication, Body.......................................... 364Lug Nuts/Bolts..................................... 332, 411
M
Maintenance Free Battery............................ 352Maintenance Plan......................................... 346Maintenance Schedule........................ 342, 346Malfunction Indicator Light (Check Engine).. 105ManualPark Release............................................ 337Service..................................................... 426Media Hub....................................................... 70Media Mode.................................................. 232Memory Seat................................................... 30Memory Settings.............................................. 30Methanol...................................................... 414Midline Instrument Cluster — Gasoline
b
...... 79Mirror, Digital Rearview................................... 39Mirror, Digital Trailer Camera........................... 39
Mirrors.............................................................39Electric Powered..........................................43Heated.........................................................46Memory.......................................................30Outside........................................................42Rearview............................................ 39, 326Trailer Towing..............................................42Mobile App.................................................... 246Modifications/AlterationsVehicle.........................................................10Monitor, Tire Pressure System...................... 280Mopar Parts.................................................. 425MP3 Control.....................................................70Multi-Function Control Lever............................51
N
New Vehicle Break-In Period................ 127, 128Noise ControlMaintenance............................................ 375Tampering Prohibited............................... 375Noise Emission Warranty..................... 374, 375
11

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434 O
Occupant Restraints
...................................... 288Octane Rating, Gasoline (Fuel)...................... 413Oil Filter, Change........................................... 354Oil Filter, Selection......................................... 354Oil life Reset
b
............................................... 92Oil Pressure Light.......................................... 104Oil Reset.......................................................... 92Oil, Engine........................................... 353, 419Capacity.................................................... 418Dipstick..................................................... 352Disposal.................................................... 354Filter................................................ 354, 419Filter Disposal........................................... 354Identification Logo..................................... 354Materials Added To................................... 354Pressure Warning Light............................. 104Recommendation............................ 353, 354Synthetic................................................... 354Onboard Diagnostic System.......................... 111Operating Precautions................................... 111Operator Manual Owner's Manual........................................ 426Outside Rearview Mirrors................................ 42Overdrive....................................................... 138Overdrive OFF Switch..................................... 138Overheating, Engine...................................... 335
P
Paint Care..................................................... 407Pair (link) Uconnect Phone To A
mobile Phone
b
.......................................... 236Panic Alarm...................................................... 16Parking Brake............................................... 128ParkSenseFront And Rear......................................... 159ParkSense System, Rear.............................. 159Passive Entry................................................... 25Pedals, Adjustable........................................... 38Pedestrian Warning System.......................... 280Pets.............................................................. 322Phone Mode................................................. 234Placard, Tire And Loading Information.......... 394PowerDistribution Center (Fuses)....................... 377Door Locks.................................................. 24Mirrors......................................................... 43Outlet (Auxiliary Electrical Outlet)......... 71, 72Outside Mirror Lights................................... 46Seats........................................................... 33Sliding Rear Window.................................... 76Steering.................................................... 148Take-Off Adapter...................................... 147Take-Off Operation................................... 147Windows...................................................... 74
Power SeatsDown...........................................................33Forward.......................................................33Rearward.....................................................33Recline.........................................................33Tilt................................................................33Up................................................................33Power Steering Fluid..................................... 421Pregnant Women And Seat Belts.................. 294Preparation For Jacking................................ 329Presets.......................................................... 230Profile Settings.............................................. 202Programmable Features............................... 199PTO (Power Take-Off).................................... 147
R
Radial Ply Tires.............................................. 398Radiator Cap (Coolant Pressure Cap)... 368, 369RadioPresets..................................................... 230Settings.................................................... 199Radio Controls.............................................. 224Radio Mode................................................... 224Radio Operation................................... 224, 263Radio Remote Controls................................. 224Rain Sensitive Wiper System...........................58

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