2020 Ram 3500 four wheel drive

6
AUTOMATIC TRANSMISSION .......................... 233Ignition Park Interlock ...............................234
Brake/Transmission Shift Interlock
System .......................................................235 Eight-Speed Automatic Transmission —
If Equipped .................................................235 Six-Speed Automatic Transmission —
If Equipped .................................................239
AUXILIARY SWITCHES — IF EQUIPPED ........... 246
ACTIVE NOISE CANCELLATION ........................ 246
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ...................................................... 246
Electronically Shifted Transfer Case (Eight
Speed Transmission) — If Equipped ........246 Electronically Shifted Transfer Case (Six
Speed Transmission) — If Equipped ........250 Manually Shifted Transfer Case —
If Equipped .................................................253
AIR SUSPENSION SYSTEM — IF EQUIPPED.... 256
Description .................................................256
Air Suspension Modes...............................256
Instrument Cluster Display Messages......257Operation....................................................258 AXLE LOCKER SYSTEM — POWER WAGON
MODELS ONLY (IF EQUIPPED).......................... 258
STABILIZER/SWAY BAR SYSTEM — POWER
WAGON ONLY ....................................................260
SAFE OFF-ROAD DRIVING — POWER WAGON
ONLY ...................................................................261
Off-Road Driving Tips And Vehicle
Characteristics ........................................... 261 Driving In Snow, Mud And Sand ............... 262
Crossing Obstacles (Rocks And Other
High Points) ................................................ 263 Hill Climbing ............................................... 264Driving Through Water............................... 266Airing Down For Off-Road Driving ............. 267Vehicle Recovery........................................ 268
After Driving Off-Road ................................ 270
LIMITED-SLIP DIFFERENTIAL ........................... 270
WINCH USAGE — POWER WAGON ONLY
(IF EQUIPPED) .....................................................271
Things To Know Before Using
Your Winch ................................................. 271 Understanding The Features Of
Your Winch ................................................. 271 Winch Accessories .................................... 272
Operating Your Winch ............................... 273Rigging Techniques .................................. 279 FUEL SAVER TECHNOLOGY — GAS ENGINE
(IF EQUIPPED) .................................................... 279
SPEED CONTROL .............................................. 280
To Activate.................................................. 280
To Set A Desired Speed ............................ 280To Vary The Speed Setting ........................ 280
To Accelerate For Passing ........................ 281
To Resume Speed ..................................... 281
To Deactivate ............................................. 281 ADAPTIVE CRUISE CONTROL (ACC) —
IF EQUIPPED
....................................................... 282

Adaptive Cruise Control (ACC) Operation ... 283
Activating Adaptive Cruise Control (ACC) ... 284

To Activate/Deactivate.............................. 284
To Set A Desired ACC Speed..................... 285
To Cancel ................................................... 285
To Turn Off ................................................. 285
To Resume ................................................. 285To Vary The Speed Setting ........................ 286
Setting The Following Distance In ACC .... 287
Overtake Aid............................................... 288
ACC Operation At Stop............................... 289Adaptive Cruise Control (ACC) Menu ........ 289
Display Warnings And Maintenance ........ 290
Precautions While Driving With ACC......... 291
General Information .................................. 294
Normal (Fixed Speed) Cruise Control
Mode .......................................................... 294

20_DJD2_OM_EN_USC_t.book Page 6

7
PARKSENSE REAR PARK ASSIST —
IF EQUIPPED ...................................................... 296 ParkSense Sensors ...................................296
ParkSense Warning Display ......................296
ParkSense Display ..................................... 297Enabling And Disabling ParkSense ..........299
Service The ParkSense Rear Park
Assist System .............................................299 Cleaning The ParkSense System ..............299
ParkSense System Usage Precautions ....299
PARKSENSE FRONT AND REAR
PARK ASSIST ..................................................... 301
ParkSense Sensors ...................................301
ParkSense Warning Display ......................301
ParkSense Display ..................................... 301Enabling And Disabling Front And/Or
Rear ParkSense .........................................304 Service The ParkSense Front/Rear
Park Assist System ....................................305 Cleaning The ParkSense System ..............305
ParkSense System Usage Precautions ....305
LANESENSE — IF EQUIPPED ........................... 306
LaneSense Operation ................................306Turning LaneSense On Or Off ...................307LaneSense Warning Message ..................307
Changing LaneSense Status .....................309 PARKVIEW REAR BACK UP CAMERA..............309
AUX Camera — If Equipped ...................... 311
SURROUND VIEW CAMERA SYSTEM —
IF EQUIPPED ....................................................... 312
AUX Camera — If Equipped ...................... 318
ENGINE RUNAWAY — DIESEL ENGINE ............ 319
REFUELING THE VEHICLE — GAS ENGINE ...... 319
Loose Fuel Filler Cap Message ................ 320

REFUELING THE VEHICLE — DIESEL ENGINE ... 320

Diesel Exhaust Fluid .................................. 321
VEHICLE LOADING ............................................324
Gross Vehicle Weight Rating (GVWR) ...... 324
Payload ....................................................... 324Gross Axle Weight Rating (GAWR) ............ 324
Tire Size ...................................................... 324
Rim Size ..................................................... 324
Inflation Pressure ...................................... 324
Curb Weight................................................ 324
Loading ....................................................... 324
TRAILER TOWING ............................................... 325
Common Towing Definitions ..................... 325Trailer Hitch Type and Maximum
Trailer Weight ............................................. 329 Trailer Towing Weights (Maximum Trailer
Weight Ratings) ......................................... 330 Trailer And Tongue Weight ........................ 330
Towing Requirements ............................... 330Towing Tips ................................................ 335 SNOWPLOW ...................................................... 336
Before Plowing ........................................... 337
Snowplow Prep Package Model
Availability .................................................. 337 Over The Road Operation With
Snowplow Attached ................................... 338 Operating Tips............................................ 338General Maintenance................................ 338
RECREATIONAL TOWING (BEHIND
MOTORHOME, ETC.) ......................................... 339
Towing This Vehicle Behind Another
Vehicle ........................................................ 339 Recreational Towing — Two-Wheel Drive
Models........................................................ 339 Recreational Towing — Four-Wheel Drive
Models........................................................ 340
DRIVING TIPS ..................................................... 343
Driving On Slippery Surfaces ................... 343
Driving Through Water ............................. 343
Off-Road Driving Tips ................................. 344
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS ...................... 346
ASSIST AND SOS SYSTEM — IF EQUIPPED .... 346General Information .................................. 350

20_DJD2_OM_EN_USC_t.book Page 7

8
BULB REPLACEMENT ....................................... 351 Replacement Bulbs ..................................351Replacing Exterior Bulbs ...........................353
FUSES .................................................................. 358
Power Distribution Center .........................358
JACKING AND TIRE CHANGING ...................... 365
Jack Location .............................................365Removal Of Jack And Tools .......................365
Removing The Spare Tire ..........................367
Preparations For Jacking...........................368
Jacking Instructions ...................................368
To Stow The Flat Or Spare ........................ 372Reinstalling The Jack And Tools ...............373
Hub Caps/Wheel Covers — If Equipped ...374
JUMP STARTING ................................................ 375
Preparations For Jump Start .....................375Jump Starting Procedure...........................376
GEAR SELECTOR OVERRIDE — 6–SPEED
TRANSMISSION ................................................ 377
MANUAL PARK RELEASE — 8 – SPEED
TRANSMISSION ................................................ 378
IF YOUR ENGINE OVERHEATS ......................... 379
FREEING A STUCK VEHICLE ............................ 380 TOWING A DISABLED VEHICLE .......................381
Two-Wheel Drive Models ........................... 382
Four-Wheel Drive Models .......................... 383Emergency Tow Hooks — If Equipped ...... 384
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS) ................................................. 384
EVENT DATA RECORDER (EDR) .......................384
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GAS ENGINE .......385
Maintenance Plan — Gasoline Engine...... 386
Heavy Duty Use Of The Vehicle................. 389
SCHEDULED SERVICING— DIESEL ENGINE .... 389
Oil Change Indicator System —
Cummins Diesel......................................... 390 Perform Service Indicator —
Cummins Diesel ........................................ 390 Maintenance Plan — Cummins Diesel
Engine ........................................................ 391
ENGINE COMPARTMENT .................................. 396
6.4L Engine ................................................ 396
6.7L Diesel Engine — Six-Speed 68RFE ... 397
6.7L Diesel Engine — Six-Speed AISIN
(AS69RC HD) .............................................. 398 Checking Oil Level — Gas Engine ............. 399
Checking Oil Level — Diesel Engine .......... 399
Adding Washer Fluid ................................. 399Maintenance-Free Battery ....................... 400Pressure Washing...................................... 400
DEALER SERVICE .............................................. 401
Engine Oil .................................................. 401
Engine Oil Filter ......................................... 403Engine Air Cleaner Filter ........................... 403
Air Conditioner Maintenance ................... 405
Accessory Drive Belt Inspection ............... 408Draining Fuel/Water Separator Filter —
Diesel Engine ............................................ 409 Engine Mounted Fuel Filter
Replacement — Diesel Engine .................. 410 Underbody Mounted Fuel Filter
Replacement — Diesel Engine .................. 412 Priming If The Engine Has Run Out Of
Fuel — Diesel Engine ................................. 412 Intervention Regeneration Strategy —
Message Process Flow ............................. 413 Diesel Exhaust Fluid .................................. 414
Body Lubrication ........................................ 414

20_DJD2_OM_EN_USC_t.book Page 8

11
INTRODUCTION
Dear Customer, congratulations on selecting your new vehicle. Be assured that it represents precision workmanship, distinctive styling, and high quality.
This is a specialized utility vehicle. It can go places and perform tasks that are not intended for conventional passenger vehicles. It handles and
maneuvers differently from many passenger vehicles both on-road and off-road, so take time to become familiar with your vehicle. If equipped, the
two-wheel drive version of this vehicle was designed for on-road use only. It is not intended for off-road driving or use in other severe conditions suited
for a four-wheel drive vehicle. Before you start to drive this vehicle, read the Owner’s Manual. Be sure you are familiar with all vehicle controls,
particularly those used for braking, steering, transmission, and transfer case shifting. Learn how your vehicle handles on different road surfaces. Your
driving skills will improve with experience. When driving off-road, or working the vehicle, don’t overload the vehicle or expect the vehicle to overcome
the natural laws of physics. Always observe federal, state, provincial and local laws wherever you drive. As with other vehicles of this type, failure to
operate this vehicle correctly may result in loss of control or a collision. Refer to the “Driving Tips” in “Starting and Operating” for further information.
This Owner's Manual has been prepared with the assistance of service and engineering specialists to acquaint you with the operation and maintenance
of your vehicle. It is supplemented by Warranty Information, and customer-oriented documents. Within this information, you will find a description of
the services that FCA US LLC offers to its customers, the vehicle's warranty coverage, and the details of the terms and conditions for maintaining its
validity. Please take the time to read all of these publications carefully before driving your vehicle for the first time. Following the instructions,
recommendations, tips, and important warnings in this manual will help assure safe and enjoyable operation of your vehicle.
This Owner's Manual describes all versions of this vehicle. Options and equipment dedicated to specific markets or versions are not expressly indicated
in the text. Therefore, you should only consider the information which is related to the trim level, engine, and version that you have purchased. Any
content introduced throughout the Owner's Information, that may or may not be applicable to your vehicle, will be identified with the wording “If
Equipped”. All data contained in this publication are intended to help you use your vehicle in the best possible way. FCA US LLC aims at a constant
improvement of the vehicles produced. For this reason, it reserves the right to make changes to the model described for technical and/or commercial
reasons. For further information, contact an authorized dealer.
When it comes to service, remember that an authorized dealer knows your vehicle best, has factory-trained technicians and genuine MOPAR® parts,
and cares about your satisfaction.1

20_DJD2_OM_EN_USC_t.book Page 11

GETTING TO KNOW YOUR INSTRUMENT PANEL137
Anti-Lock Brake System(ABS) Warning
Light

This warning light monitors the
Anti-Lock Brake System (ABS). The
light will turn on when the ignition is
placed in the ON/RUN or ACC/ON/
RUN position and may stay on for as long as
four seconds.

If the ABS light remains on or turns on while
driving, then the Anti-Lock portion of the brake system is not functioning and service is
required as soon as possible. However, the
conventional brake system will continue to
operate normally, assuming the Brake Warning
Light is not also on.
If the ABS light does not turn on when the
ignition is placed in the ON/RUN or ACC/ON/
RUN position, have the brake system inspected
by an authorized dealer.
Rear Axle Locker Fault Indicator Light — If
Equipped
This warning light will illuminate to
indicate when a rear axle locker fault
has been detected.
Refer to “Axle Locker System — Power Wagon
Models Only (If Equipped)” in “Starting And
Operating” for further information.
Service Forward Collision Warning (FCW)
Light — If Equipped
This warning light will illuminate to
indicate a fault in the Forward
Collision Warning System. Contact an
authorized dealer for service.
Refer to "Forward Collision Warning (FCW)" in
"Safety" for further information.
Service 4WD Warning Light — If Equipped
This warning light will illuminate to
signal a fault with the 4WD system. If
the light stays on or comes on during
driving, it means that the 4WD system
is not functioning properly and that service is
required. We recommend you drive to the
nearest service center and have the vehicle
serviced immediately.
Speed Control Fault Warning Light

This warning light will illuminate to
indicate the Speed Control System is
not functioning properly and service is
required. Contact an authorized dealer.

Sway Bar Fault Warning Light
This light will illuminate when there is
a fault in the sway bar disconnect
system.
Refer to “Stabilizer/Sway Bar System — Power
Wagon Only” in “Starting And Operating” for
further information.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures
and warning have been established for the
tire size equipped on your vehicle.
Undesirable system operation or sensor
damage may result when using replacement
equipment that is not of the same size, type,
and/or style. Aftermarket wheels can cause
sensor damage. Using aftermarket tire
sealants may cause the Tire Pressure
Monitoring System (TPMS) sensor to become
inoperable. After using an aftermarket tire
sealant it is recommended that you take your
vehicle to an authorized dealer to have your
sensor function checked.
3

20_DJD2_OM_EN_USC_t.book Page 137

GETTING TO KNOW YOUR INSTRUMENT PANEL139
Air Suspension Bed Lowering Mode
Indicator Light — If Equipped
This light will illuminate when the Bed
Lowering Mode procedure is
complete.
Refer to “Air Suspension System — If Equipped”
in “Starting And Operating” for further
information.
Air Suspension Ride Height Raising
Indicator Light — If Equipped
This light will blink and alert the driver
that the vehicle is changing to a
higher ride height.
Refer to “Air Suspension System — If Equipped”
in “Starting And Operating” for further
information.
Air Suspension Ride Height Lowering
Indicator Light — If Equipped
This light will blink and alert the driver
that the vehicle is changing to a lower
ride height.
Refer to “Air Suspension System — If Equipped”
in “Starting And Operating” for further
information.
Front And Rear Axle Lock Indicator Light
This light indicates when the front,
rear, or both axles have been locked.
The telltale will display the lock icon
on the front and rear axles to indicate
the current lock status.
Rear Axle Lock Indicator Light
This light indicates when the rear axle
lock has been activated.
Refer to “Four Wheel Drive Operation
— If Equipped” in “Starting And Operating” for
further information.
4WD Lock Indicator Light
This light alerts the driver that the
vehicle is in the four-wheel drive LOCK
mode. The front and rear driveshafts
are mechanically locked together,
forcing the front and rear wheels to rotate at the
same speed.
Refer to “Four-Wheel Drive Operation” in
“Starting And Operating” for further information
on four-wheel drive operation and proper use.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive LOW
mode. The front and rear driveshafts
are mechanically locked together
forcing the front and rear wheels to rotate at the
same speed. Low range provides a greater gear
reduction ratio to provide increased torque at
the wheels.
Refer to “Four-Wheel Drive Operation — If
Equipped” in “Starting And Operating” for
further information on four-wheel drive
operation and proper use.
4WD High Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive HIGH
mode. The front and rear driveshafts
are mechanically locked together
forcing the front and rear wheels to rotate at the
same speed.
NEUTRAL Indicator Light — If Equipped

This light alerts the driver that the 4WD
power transfer case is in the NEUTRAL
mode and the front and rear driveshafts
are disengaged from the powertrain.

3

20_DJD2_OM_EN_USC_t.book Page 139

152SAFETY
Disabling And Enabling HSA
This feature can be turned on or turned off. To
change the current setting, proceed as follows:
If disabling HSA using your instrument cluster
display, refer to “Instrument Cluster Display”
in “Getting To Know Your Instrument Panel”
for further information.
If disabling HSA using Uconnect Settings,
refer to “Uconnect Settings” in “Multimedia”
for further information.
For vehicles not equipped with an instrument
cluster display, perform the following steps:

1. Center the steering wheel (front wheels pointing straight forward).

2. Shift the transmission into PARK.
3. Apply the parking brake.
4. Start the engine.
5. Rotate the steering wheel slightly more than one-half turn to the left.
6. Push the “ESC OFF” button located in the lower switch bank below the climate control
four times within 20 seconds. The “ESC OFF
Indicator Light” should turn on and turn off
two times.
7. Rotate the steering wheel back to center and then an additional slightly more than
one-half turn to the right.
8. Place the ignition in the OFF mode and then back to ON. If the sequence was completed
properly, the “ESC OFF Indicator Light” will blink several times to confirm HSA is
disabled.
9. Repeat these steps if you want to return this feature to its previous setting.
Towing With HSA
HSA will also provide assistance to mitigate roll
back while towing a trailer.
WARNING!
There may be situations where the Hill Start
Assist (HSA) will not activate and slight rolling
may occur, such as on minor hills or with a
loaded vehicle, or while pulling a trailer. HSA
is not a substitute for active driving
involvement. It is always the driver’s
responsibility to be attentive to distance to
other vehicles, people, and objects, and most
importantly brake operation to ensure safe
operation of the vehicle under all road
conditions. Your complete attention is always
required while driving to maintain safe control
of your vehicle. Failure to follow these
warnings can result in a collision or serious
personal injury.
WARNING!

If you use a trailer brake controller with your
trailer, the trailer brakes may be activated
and deactivated with the brake switch. If so,
there may not be enough brake pressure to
hold both the vehicle and the trailer on a hill
when the brake pedal is released. In order to
avoid rolling down an incline while resuming
acceleration, manually activate the trailer
brake or apply more vehicle brake pressure
prior to releasing the brake pedal.

HSA is not a parking brake. Always apply
the parking brake fully when exiting your
vehicle. Also, be certain to place the trans -
mission in PARK.
Failure to follow these warnings can result
in a collision or serious personal injury.

20_DJD2_OM_EN_USC_t.book Page 152

SAFETY165
NOTE:
The TPMS is not intended to replace normal
tire care and maintenance or to provide
warning of a tire failure or condition.
If your vehicle is not equipped with the Tire
Fill Alert feature the TPMS should not be used
as a tire pressure gauge while adjusting your
tire pressure.
Driving on a significantly under-inflated tire
causes the tire to overheat and can lead to
tire failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.
The TPMS is not a substitute for proper tire
maintenance, and it is the driver’s responsi -
bility to maintain correct tire pressure using
an accurate tire pressure gauge, even if
under-inflation has not reached the level to
trigger illumination of the TPMS Warning
Light.
Seasonal temperature changes will affect
tire pressure, and the TPMS will monitor the
actual tire pressure in the tire.
Example: Tire Pressure Monitoring Display

The Tire Pressure Monitoring System (TPMS)
uses wireless technology with wheel rim
mounted electronic sensors to monitor tire
pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire
pressure readings to the receiver module.
NOTE:
It is particularly important for you to check the
tire pressure in all of the tires on your vehicle
monthly and to maintain the proper pressure.
The TPMS consists of the following
components:
Receiver module
Four Tire Pressure Monitoring sensors
Various Tire Pressure Monitoring System
messages, which display in the instrument
cluster
Tire Pressure Monitoring System Warning
Light
Tire Pressure Monitoring Low Pressure
Warnings
The “Tire Pressure Monitoring
Warning Light” will illuminate in the
instrument cluster when tire pressure
is low in one or more of the four active
road tires. In addition, the instrument cluster
will display a graphic showing the pressure
values of each tire with the low tire pressure
values in a different color. An "Inflate to XX"
message will also be displayed.

Example: Low Tire Pressure Display
4

20_DJD2_OM_EN_USC_t.book Page 165