rotation Ram 4500 Chassis Cab 2020 Owner's Manual

7
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GAS ENGINE ....... 329Maintenance Plan......................................330
Heavy Duty Use Of The Vehicle ................. 333
SCHEDULED SERVICING — DIESEL ENGINE .. 334
Oil Change Indicator System —
Cummins Diesel .........................................335 Perform Service Indicator —
Cummins Diesel ........................................335 Maintenance Plan — Cummins
Diesel Engine ............................................336
ENGINE COMPARTMENT ................................ 343
6.4L Engine ...............................................3436.7L Engine ................................................344
Checking Oil Level — Gas Engine .............345
Checking Oil Level — Diesel Engine ..........345
Adding Washer Fluid ................................345Maintenance-Free Battery .......................346
Pressure Washing ......................................346
DEALER SERVICE .............................................. 347
Engine Oil .................................................. 347Engine Oil Filter ........................................349
Engine Air Cleaner Filter .........................349
Air Conditioner Maintenance ................. 351
Accessory Drive Belt Inspection................354Draining Fuel/Water Separator Filter .....354
Engine Mounted Fuel Filter
Replacement ..............................................356 Underbody Mounted Fuel Filter
Replacement ..............................................357 Priming If The Engine Has Run
Out Of Fuel ................................................ 358 Intervention Regeneration Strategy —
Message Process Flow ............................. 359 Diesel Exhaust Fluid .................................. 359Body Lubrication ...................................... 360
Windshield Wiper Blades ........................ 360
Exhaust System ........................................ 362
Cooling System ......................................... 363
Charge Air Cooler — Inter-Cooler .............. 366
Brake System ............................................ 367Automatic Transmission............................ 368
Rear Axle And 4x4 Front Driving Axle Fluid
Level ....................................................... 370 Transfer Case ............................................ 371Noise Control System Required
Maintenance & Warranty ......................... 371
HOISTING ............................................................374
TIRES....................................................................374
Tire Safety Information ........................... 374
Tires — General Information .................... 382
Tire Types ................................................... 386
Spare Tires — If Equipped ....................... 387
Wheel And Wheel Trim Care .................. 389Tire Chains and Traction Devices ............ 390
Tire Rotation Recommendations .............. 391 DEPARTMENT OF TRANSPORTATION UNIFORM
TIRE QUALITY GRADES .................................... 392
Treadwear .................................................. 392
Traction Grades ......................................... 392Temperature Grades ................................. 393
STORING THE VEHICLE .................................. 393
BODYWORK ........................................................ 393 Protection From Atmospheric Agents ..... 393
Body And Underbody Maintenance .......... 394Preserving The Bodywork.......................... 394
INTERIORS ......................................................... 395
Seats And Fabric Parts .............................. 395
Plastic And Coated Parts........................... 396
Leather Parts ............................................. 396
Glass Surfaces .......................................... 396
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA ...................................... 397Vehicle Identification Number ................. 397
BRAKE SYSTEM ................................................ 397
Hydraulic Brake Assist — If Equipped....... 397
WHEEL AND TIRE TORQUE
SPECIFICATIONS .............................................. 397
Torque Specifications .............................. 398

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40GETTING TO KNOW YOUR VEHICLE
MIRRORS
Inside Day/Night Mirror — If Equipped
The mirror head can be adjusted up, down, left,
and right for various drivers. The mirror should
be adjusted to center on the view through the
rear window.
Headlight glare from vehicles behind you can be
reduced by moving the small control under the
mirror to the night position (toward the rear of
the vehicle). The mirror should be adjusted
while set in the day position (toward the wind -
shield).

Adjusting Rearview Mirror

Automatic Dimming Mirror — If Equipped
The mirror head can be adjusted up, down, left,
and right for various drivers. The mirror should
be adjusted to center on the view through the
rear window.
This mirror automatically adjusts for headlight
glare from vehicles behind you.
NOTE:
The Automatic Dimming feature is disabled
when the vehicle is in REVERSE to improve rear
view viewing.
The Automatic Dimming feature can be turned
on or off through the touchscreen.
Automatic Dimming Mirror

Automatic Dimming Mirror With Rear View
Camera Display — If Equipped
A single ball joint mirror is provided in the
vehicle. It is a twist on mirror that has a fixed
position at the windshield. The mirror installs on
the windshield button with a counterclockwise
rotation and requires no tools for mounting. The
mirror head can be adjusted up, down, left, and
right for various drivers. The mirror should be
adjusted to center on the view through the rear
window.
This mirror automatically adjusts for headlight
glare from vehicles behind you.
CAUTION!
To avoid damage to the mirror during
cleaning, never spray any cleaning solution
directly onto the mirror. Apply the solution
onto a clean cloth and wipe the mirror clean.

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IN CASE OF EMERGENCY317
5. Remove the lug nuts and pull the wheel off.
Install the spare wheel and lug nuts with the
cone shaped end of the nuts toward the
wheel on Single Rear-Wheel (SRW) models.
On Dual Rear-Wheel models (DRW) the lug
nuts are a two-piece assembly with a flat
face. Lightly tighten the nuts. To avoid risk
of forcing the vehicle off the jack, do not
fully tighten the nuts until the vehicle has
been lowered.
6. Using the lug wrench, finish tightening the nuts using a crisscross pattern. For the
proper lug nut torque specifications refer to
“Wheel And Tire Torque Specifications” in
“Technical Specifications.” If in doubt about
the correct tightness, have them checked
with a torque wrench by an authorized
dealer or at a service station. 7. Install wheel center cap (if equipped) and
remove wheel blocks. Do not install chrome
or aluminum wheel center caps on the
spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the jack will not lower by turning the dial
(thumbwheel) by hand, it may be necessary
to use the jack driver in order to lower the
jack. Stow the replaced tire, jack, and tools
as previously described.
9. Adjust the tire pressure when possible.
10. After 25 miles (40 km), check the lug nut torque with a torque wrench to ensure that
all lug nuts are properly seated against the
wheel.
Dual Rear Wheels
Slots in the wheels will assist in properly
orienting the inner and outer wheels. Align
these slots when assembling the wheels for
best access to the tire valve on the inner wheel.
The tires of both dual wheels must be
completely off the ground when tightening to
insure wheel centering and maximum wheel
clamping.
Dual wheel models require a special heavy-duty
lug nut tightening adapter (included with the
vehicle) to correctly tighten the lug nuts. Also,
when it is necessary to remove and install dual
rear wheels, use a proper vehicle lifting device.
NOTE:
When installing a spare tire (if equipped) as part
of a dual rear wheel end combination, the tire
diameter of the two individual tires must be
compared. If there is a significant difference,
the larger tire should be installed in a front loca-
tion. The correct direction of rotation for dual
tire installations must also be observed.WARNING!
Raising the vehicle higher than necessary can
make the vehicle less stable. It could slip off
the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
WARNING!
A loose tire or jack thrown forward in a
collision or hard stop, could endanger the
occupants of the vehicle. Always stow the jack
parts and the spare tire in the places
provided.
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SERVICING AND MAINTENANCE385
Tread Wear Indicators
Tread wear indicators are in the original equip -
ment tires to help you in determining when your
tires should be replaced.

Tire Tread

These indicators are molded into the bottom of
the tread grooves. They will appear as bands
when the tread depth becomes a 1/16 of an
inch (1.6 mm). When the tread is worn to the
tread wear indicators, the tire should be
replaced.
Refer to “Replacement Tires” in this section for
further information.
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 replace -
ment.
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. NOTE:
Wheel valve stem must be replaced as well
when installing new tires due to wear and tear
in existing tires.
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 manufacturer
strongly recommends that you use tires equiva-
lent to the originals in size, quality and perfor
-
mance when replacement is needed. Refer to
the paragraph on “Tread Wear Indicators” in
this section. Refer to the Tire and Loading Infor -
mation 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.
1 — Worn Tire
2 — New Tire
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.
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SERVICING AND MAINTENANCE387
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 orig -
inal 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 orig -
inal 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
studded tires; therefore, local laws should be
checked before using these tire types.
Spare Tires — If Equipped
Refer to the “Towing Requirements - Tires” in
“Starting And Operating” for restrictions when
towing with a spare tire designated for tempo -
rary emergency use.
Spare Tire Matching Original Equipped Tire
And Wheel — If Equipped
Your vehicle may be equipped with a spare tire
and wheel equivalent in look and function to the
original equipment tire and wheel found on the
front or rear axle of your vehicle. This spare tire
may be used in the tire rotation for your vehicle.
If your vehicle has this option, refer to an autho -
rized tire dealer for the recommended tire rota -
tion pattern.
Compact Spare Tire — If Equipped
The compact spare is for temporary emergency
use only. You can identify if your vehicle is
equipped with a compact spare by looking at
the spare tire description on the Tire and
Loading Information Placard located on the
driver’s side door opening or on the sidewall of
the tire. Compact spare tire descriptions begin
with the letter “T” or “S” preceding the size
designation. Example: T145/80D18 103M.
T, S = Temporary Spare Tire
Since this tire has limited tread life, the original
equipment tire should be repaired (or replaced)
and reinstalled on your vehicle at the first
opportunity.
Do not install a wheel cover or attempt to mount
a conventional tire on the compact spare wheel,
since the wheel is designed specifically for the
compact spare tire. Do not install more than
one compact spare tire and wheel on the
vehicle at any given time.CAUTION!
Because of the reduced ground clearance, do
not take your vehicle through an automatic
car wash with a compact or limited use
temporary spare installed. Damage to the
vehicle may result.
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SERVICING AND MAINTENANCE391
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. Refer to the “Maintenance Plan” for the proper
maintenance intervals. 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

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.
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 locations can’t be switched.
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! (Continued)
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392SERVICING AND MAINTENANCE
(Continued)
After a tire rotation is completed, as shown
below, the system can auto learn the loca -
tions of each sensor ID. Auto learning/local -
ization 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
localization of the TPIS sensors will fail to
locate correctly resulting in incorrect loca -
tions 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 addi -
tion 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
significantly from the norm due to varia -
tions 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.
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.
CAUTION! (Continued)

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510
Rain Sensitive Wiper System
......................51Rear Axle (Differential).................... 370, 371Rear Camera........................................261Rear ParkSense System.................. 246, 250Rear Window, Sliding................................66Recreational Towing...............................288Shifting Into Transfer Case Neutral (N)....290Shifting Out Of Transfer Case Neutral (N)....................................291Reformulated Gasoline...........................399Refrigerant...................................351, 352Release, Hood........................................66Reminder, Seat Belt...............................142Remote Keyless Entry...............................13Panic Alarm........................................14Programming Additional Key Fobs...... 16, 23Remote Start (Diesel)...............................20Remote Start (Gasoline)............................18Remote StartingExit Remote Start Mode.........................19Uconnect Customer ProgrammableFeatures....................... 424, 440, 459Uconnect Settings.............. 424, 440, 459Replacement Bulbs................................300Replacement Keys...................................23Replacement Tires.................................385Reporting Safety Defects.........................502Resetting Perform Service Indicator...........335Restraints, Child....................................160Restraints, Head......................................36
Rotation, Tires...................................... 391
S
Safety Checks Inside Vehicle.................... 180Safety Checks Outside Vehicle.................. 182Safety Defects, Reporting........................ 502Safety Information, Tire........................... 374Safety Tips........................................... 180Safety, Exhaust Gas............................... 180Schedule, Maintenance.......................... 329Seat BeltAutomatic Locking Retractor (ALR)......... 149Seat Belt Reminder................................ 108Seat Belts.................................... 142, 180Adjustable Shoulder Belt..................... 146Adjustable Upper Shoulder Anchorage.... 146Adjustable Upper Shoulder BeltAnchorage.................................... 146Child Restraints................................. 160Extender.......................................... 148Front Seat................................ 142, 145Inspection........................................ 180Lap/Shoulder Belt Operation................ 145Lap/Shoulder Belt Untwisting............... 146Operating Instructions......................... 145Pregnant Women............................... 149Reminder......................................... 142Seat Belt Extender............................. 148Seat Belt Reminder............................ 142Untwisting Procedure.......................... 146
Seat Belts Maintenance.......................... 395Seats............................................. 30, 31Adjustment.................................. 30, 31Easy Entry.......................................... 33Folding Floor...................................... 76Head Restraints.................................. 36Memory............................................. 32Power............................................... 31Rear Folding....................................... 30Tilting............................................... 30Security Alarm................................ 24, 110Selection Of Coolant (Antifreeze)....... 407, 410Sentry KeyKey Programming................................ 23Sentry Key (Immobilizer)........................... 22Sentry Key Replacement........................... 23Service Assistance................................ 500Service Contract................................... 501Service Manuals................................... 503Shift Lever Override............................... 322Shifting............................................... 205Automatic Transmission.............. 207, 213Transfer Case................................... 227Transfer Case, Shifting Into Transfer Case Neutral (N)................. 290Transfer Case, Shifting Out Of Transfer Case Neutral (N)............................ 291Signals, Turn.......................... 47, 117, 182Siri..................................................... 495Sliding Rear Window, Power....................... 66

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511
Snow Chains (Tire Chains)
.......................390Snow Plow...........................................286Snow Tires...........................................387Spare Tires...................................387, 388Spark Plugs..........................................407Speed Control Accel/Decel......................................231Cancel.............................................231Resume...........................................231Speed Control (Cruise Control)..........230, 232Starting............................... 183, 184, 187Automatic Transmission............... 183, 187Button...............................................17Cold Weather....................................187Engine Block Heater...........................190Engine Fails To Start...........................186Starting And Operating............................184Starting Procedures........................184, 187Starting Procedures (Diesel Engines)..........187Starting Procedures (Gas Engines).............183SteeringPower..............................................229Tilt Column.........................................38Wheel, Heated.....................................38Wheel, Tilt..........................................38Steering Wheel Audio Controls..................481Steering Wheel Mounted Sound
System Controls....................................481Storage.................................................72Storage Compartment, Center Seat..............73
Storage, Vehicle.............................. 63, 393Storing Your Vehicle............................... 393Sunglasses Storage................................. 81Sway Control, Trailer.............................. 127Synthetic Engine Oil............................... 349
T
Telescoping Steering Column..................... 38Temperature Control, Automatic (ATC).......... 62TiltDown................................................ 31Up.................................................... 31Tilt Steering Column................................. 38Tip Start...................................... 183, 188Tire And Loading Information Placard......... 379Tire Markings....................................... 375Tire Safety Information........................... 374Tires........................... 182, 382, 387, 392Aging (Life Of Tires)............................ 385Air Pressure...................................... 382Chains............................................. 390Changing......................................... 314Compact Spare................................. 387Dual............................... 317, 391, 398General Information................... 382, 387High Speed....................................... 383Inflation Pressure............................... 383Jacking............................................ 314Life Of Tires...................................... 385Load Capacity................................... 379
Pressure Monitoring System(TPMS)................................ 113, 132Quality Grading................................. 392Radial............................................. 384Replacement.................................... 385Rotation.......................................... 391Safety..................................... 374, 382Sizes.............................................. 376Snow Tires....................................... 387Spare Tires.............................. 387, 388Spinning.......................................... 384Trailer Towing................................... 280Tread Wear Indicators......................... 385Wheel Nut Torque.............................. 397To Open Hood........................................ 66Tongue Weight/Trailer Weight.................. 279Torque Converter Clutch......................... 212Towing........................................ 274, 326Disabled Vehicle................................ 326Guide.............................................. 279Recreational..................................... 288Weight............................................ 279Towing Behind A Motorhome................... 288Traction.............................................. 292Traction Control.................................... 124Traction Control Switch........................... 124Trailer Sway Control (TSC)....................... 127Trailer Towing....................................... 274Cooling System Tips........................... 285Hitches........................................... 278
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