warning RAM CHASSIS CAB 2021 Owners Manual

The driver’s primary responsibility is the safe operation of the vehicle. Driving while distracted can result in loss of vehicle control, resulting
in an accident and personal injury. FCA US LLC strongly recommends that the driver use extreme caution when using any device or feature
that may take their attention off the road. Use of any electrical devices, such as cellular telephones, computers, portable radios, vehicle
navigation or other devices, by the driver while the vehicle is moving is dangerous and could lead to a serious accident. Texting while driving
is also dangerous and should never be done while the vehicle is moving. If you find yourself unable to devote your full attention to vehicle
operation, pull off the road to a safe location and stop your vehicle. Some states or provinces prohibit the use of cellular telephones or texting
while driving. It is always the driver’s responsibility to comply with all local laws.
This Owner’s Manual has been prepared to help you get acquainted with your new Ram brand vehicle and to provide a convenient
reference for common questions.
Not all features shown in this manual may apply to your vehicle. For additional information on accessories to help personalize your vehicle,
visit mopar.com/om (U.S.), owners.mopar.ca (Canada) or your local Ram brand dealer.
This Owner’s Manual illustrates and describes the operation of features and equipment that are either standard or optional on this
vehicle. This manual may also include a description of features and equipment that are no longer available or were not ordered on this
vehicle. Please disregard any features and equipment that are no longer available or were not ordered on this vehicle. FCA US LLC
reserves the right to make changes in design and specifications, and/or make additions to or improvements to its products without
imposing any obligation upon itself to install them on products previously manufactured.
With respect to vehicles sold in Canada, the name FCA US LLC shall be deemed to be deleted and the name FCA Canada Inc. used in
substitution therefore.
If you are the first registered retail owner of your vehicle, you may obtain a complimentary printed copy of the Warranty Booklet by calling
1-866-726-4636 (U.S.) or 1-800-387-1143 (Canada), or by contacting your dealer.
This Owner’s Manual is intended to familiarize you with the important features of your vehicle. Your most up-to-date Owner’s Manual,
Navigation/Uconnect manuals and Warranty Booklet can be found by visiting the website on the back cover. U.S. residents can purchase
replacement kits by visiting www.techauthority.com and Canadian residents can purchase replacement kits by calling 1-800-387-1143.DRIVING AND ALCOHOL
Drunk driving is one of the most frequent causes of accidents. Your driving ability can be seriously impaired with blood alcohol levels far
below the legal minimum. If you are drinking, don’t drive. Ride with a designated non-drinking driver, call a cab, a friend or use public
transportation.
WARNING
Driving after drinking can lead to an accident. Your perceptions are less sharp, your reflexes are slower and your judgment is impaired
when you have been drinking. Never drink and then drive.
WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway
motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates,
and lead, which are known to the State of California to cause cancer and birth defects or other
reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except
as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently
when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.

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EXTERIOR LIGHTS.................................................50 Headlight Switch .......................................... 50
Multifunction Lever ...................................... 51
Daytime Running Lights (DRLs) ................. 51
High/Low Beam Switch ............................... 51
Automatic High Beam Headlamp
Control — If Equipped .................................. 52 Flash-To-Pass ............................................... 52
Automatic Headlights — If Equipped ......... 52
Directional LED Headlamp
System — If Equipped .................................. 52 Parking Lights And Panel Lights ................. 53
Automatic Headlights With Wipers ............. 53
Headlight Delay ............................................ 53
Lights-On Reminder ..................................... 53
Front Fog Lights — If Equipped .................. 53
Turn Signals ................................................. 54
Lane Change Assist — If Equipped ............. 54
Cargo Lights/Trailer Spotter Lights — If
Equipped ...................................................... 54 Battery Saver................................................ 54
INTERIOR LIGHTS ................................................55
Courtesy Lights ............................................ 55
Illuminated Entry ......................................... 56
WINDSHIELD WIPERS AND WASHERS .............56
Windshield Wiper Operation ...................... 57
Rain Sensing Wipers — If Equipped ........... 58 CLIMATE CONTROLS ........................................... 58
Automatic Climate Control Descriptions
And Functions .............................................. 59 Manual Climate Control Descriptions And
Functions...................................................... 62 Automatic Temperature
Control (ATC) ................................................ 64 Climate Voice Recognition .......................... 65
Operating Tips ............................................. 65
INTERIOR STORAGE AND EQUIPMENT ............. 66
Storage ......................................................... 66
USB/AUX Control ........................................ 72
Electrical Power Outlets .............................. 73
Power Inverter — If Equipped ..................... 74
Wireless Charging Pad — If Equipped ........ 76
WINDOWS ............................................................ 76
Power Windows — If Equipped .................... 76
Automatic Window Features —
If Equipped ................................................... 77 Reset Auto-Up ............................................. 77
Window Lockout Switch — If Equipped....... 78
Power Sliding Rear Window —
If Equipped .................................................. 78 Manual Sliding Rear Window —
If Equipped ................................................... 78 Wind Buffeting ............................................ 78
HOOD ..................................................................... 79
To Open The Hood ...................................... 79
To Close The Hood ....................................... 79
GETTING TO KNOW YOUR
INSTRUMENT PANEL
BASE / MIDLINE INSTRUMENT CLUSTER —
GASOLINE ..............................................................80
Base / Midline Instrument Cluster
Descriptions ................................................. 81
PREMIUM INSTRUMENT CLUSTER —
GASOLINE ..............................................................83
Premium Instrument Cluster
Descriptions ................................................. 84
BASE / MIDLINE INSTRUMENT CLUSTER —
DIESEL....................................................................85
Diesel Instrument Cluster .......................... 86

PREMIUM INSTRUMENT CLUSTER — DIESEL ..... 88

Diesel Instrument Cluster .......................... 89
INSTRUMENT CLUSTER DISPLAY .......................90
Instrument Cluster Display Controls .......... 90
Oil Life Reset ............................................... 91
Display Menu Items ..................................... 92
Diesel Messages And Warnings ............... 101 Battery Saver On/Battery Saver Mode
Message — Electrical Load Reduction
Actions — If Equipped ............................... 105
WARNING LIGHTS AND MESSAGES ............... 107
Red Warning Lights ................................... 107
Yellow Warning Lights ............................... 110Yellow Indicator Lights .............................. 113
Green Indicator Lights ............................... 115White Indicator Lights ............................... 115Blue Indicator Lights ................................. 116

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ONBOARD DIAGNOSTIC SYSTEM — OBD II ... 116 Onboard Diagnostic System
(OBD II) Cybersecurity ................................116
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ........................................................ 117
STARTING AND OPERATING
STARTING THE ENGINE — GASOLINE
ENGINE ............................................................... 118
Automatic Transmission ............................118
Tip Start Feature .......................................118
Keyless Enter-N-Go — Ignition ...................118Normal Starting Using ENGINE
START/STOP Button .................................119 AutoPark — Rotary Shifter and Eight
Speed Transmission Only ..........................120 Cold Weather Operation
(Below –22°F Or −30°C) .........................122 After Starting ..............................................122
STARTING THE ENGINE — DIESEL ENGINE..... 122
Automatic Transmission ............................123
Keyless Enter-N-Go — Ignition ...................123Extreme Cold Weather...............................125
Normal Starting Procedure — Engine Manifold
Air Temperature Above 66°F (19°C) .......125 Starting Procedure — Engine Manifold
Air Temperature 0°F To 66°F
(–18°C to 19°C)........................................126 Starting Procedure — Engine Manifold Air
Temperature Below 0°F (-18°C) .............. 127 Starting Fluids ............................................ 128
NORMAL OPERATION — DIESEL ENGINE ........128
Cold Weather Precautions ........................ 129
Engine Idling ............................................. 131
Noise........................................................... 132
Stopping The Engine ................................. 133
Idle Shutdown ............................................ 133Programmable Maximum Vehicle
Speed ......................................................... 134 Operating Precautions............................... 134Cooling System Tips .................................. 134Diesel Particulate Filter (DPF) Manual
Regeneration - If Equipped ....................... 135
ENGINE BLOCK HEATER — IF EQUIPPED ........135
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE ............................................136
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE...................................................137
PARKING BRAKE ............................................... 137
DIESEL EXHAUST BRAKE
(ENGINE BRAKING) ...........................................138
AUTOMATIC TRANSMISSION ............................ 140 Ignition Park Interlock ............................... 141Brake/Transmission Shift Interlock (BTSI)
System ....................................................... 141 Eight-Speed Automatic Transmission — If
Equipped .................................................... 141 Six-Speed Automatic
Transmission — If Equipped ..................... 146 AUXILIARY SWITCHES — IF EQUIPPED ........... 152
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ...................................................... 153
Electronically Shifted Transfer Case (Eight
Speed Transmission) — If Equipped ........ 153 Electronically Shifted Transfer Case
(Six Speed Transmission) — If Equipped .. 156 Manually Shifted Transfer Case —
If Equipped ................................................. 160
LIMITED-SLIP DIFFERENTIAL .......................... 162
POWER TAKE OFF (PTO) OPERATION — IF
EQUIPPED .......................................................... 163
POWER STEERING............................................. 163
Hydraulic Power Steering .......................... 163
CRUISE CONTROL SYSTEMS —
IF EQUIPPED ...................................................... 164
Cruise Control — If Equipped ................... 164
Adaptive Cruise Control (ACC) —
If Equipped ................................................ 166
PARKSENSE FRONT/REAR PARK
ASSIST — IF EQUIPPED ..................................... 177
ParkSense Sensors ................................... 178
ParkSense Warning Display...................... 178
ParkSense Display..................................... 178
Enabling And Disabling ParkSense .......... 181Service The ParkSense Park Assist
System........................................................ 182 Cleaning The ParkSense System.............. 182
ParkSense System Usage Precautions .... 182

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LANESENSE — IF EQUIPPED ........................... 183 LaneSense Operation ................................183Turning LaneSense On Or Off ...................184LaneSense Warning Message ..................184
Changing LaneSense Status .....................186
PARKVIEW REAR BACK UP CAMERA ............ 186
AUX Camera — If Equipped .......................188
SURROUND VIEW CAMERA SYSTEM — IF
EQUIPPED ........................................................... 189
AUX Camera — If Equipped .......................194
ENGINE RUNAWAY ............................................ 195
REFUELING THE VEHICLE — GASOLINE
ENGINE ................................................................ 195
Loose Fuel Filler Cap Message ................196
REFUELING THE VEHICLE — DIESEL
ENGINE ............................................................... 196
Diesel Exhaust Fluid ..................................196
VEHICLE LOADING ............................................ 199
Gross Vehicle Weight Rating (GVWR) ......199Payload .......................................................199Gross Axle Weight Rating (GAWR) ............200
Tire Size ......................................................200
Rim Size......................................................200
Inflation Pressure ......................................200
Curb Weight................................................200
Loading .......................................................200 TRAILER TOWING ............................................... 200
Common Towing Definitions ..................... 201Trailer Hitch Type and Maximum Trailer
Weight ........................................................ 204 Trailer Towing Weights (Maximum Trailer
Weight Ratings) ......................................... 205 Trailer And Tongue Weight ....................... 205
Towing Requirements ............................... 205Towing Tips ................................................ 211
SNOWPLOW — IF EQUIPPED ............................ 212
Before Plowing ........................................... 212
Snowplow Prep Package Model
Availability .................................................. 212 Over The Road Operation With Snowplow
Attached ..................................................... 213 Operating Tips ............................................ 213General Maintenance................................ 213
RECREATIONAL TOWING (BEHIND
MOTORHOME) ...................................................214
Towing This Vehicle Behind Another
Vehicle ........................................................ 214 Recreational Towing — Two-Wheel Drive
Models ........................................................ 215 Recreational Towing — Four-Wheel Drive
Models ........................................................ 215
DRIVING TIPS ...................................................... 218
Driving On Slippery Surfaces ................... 218
Driving Through Water .............................. 218
MULTIMEDIA
UCONNECT SYSTEMS ....................................... 220
CYBERSECURITY ............................................... 220
UCONNECT 3.0 ................................................... 221 Introduction................................................ 221
Radio Mode ................................................ 222
Media Mode ............................................... 224
Phone Mode............................................... 225
UCONNECT SETTINGS ....................................... 228
Customer Programmable Features .......... 228
UCONNECT INTRODUCTION.............................. 244
System Overview ...................................... 244
Safety And General Information ............... 246
UCONNECT MODES ........................................... 247
Steering Wheel Audio Controls ................. 247
Radio Mode ............................................... 247
Media Mode .............................................. 255Phone Mode .............................................. 258
RADIO OPERATION AND MOBILE PHONES.... 269
Regulatory And Safety Information .......... 269
OFF-ROAD PAGES — IF EQUIPPED .................. 270
Off-Road Pages Status Bar ....................... 270Vehicle Dynamics ...................................... 271
Accessory Gauge ....................................... 271
Pitch & Roll................................................. 272Forward Facing Camera ............................ 272

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SAFETY
SAFETY FEATURES ............................................ 273
Anti-Lock Brake System (ABS) ................. 273
Electronic Brake Control (EBC) System ...274
AUXILIARY DRIVING SYSTEMS ........................ 281
Forward Collision Warning (FCW) With
Mitigation — If Equipped............................281 Tire Pressure Monitoring
System (TPMS) ..........................................284
OCCUPANT RESTRAINT SYSTEMS .................. 292
Occupant Restraint Systems Features ....292
Important Safety Precautions ...................293Seat Belt Systems ..................................... 293Supplemental Restraint Systems (SRS) ...302Child Restraints..........................................312
SAFETY TIPS ...................................................... 330
Transporting Passengers ..........................330
Transporting Pets ......................................330
Safety Checks You Should Make Inside
The Vehicle ................................................330 Periodic Safety Checks You Should Make
Outside The Vehicle ...................................332 Exhaust Gas ...............................................333Carbon Monoxide Warnings ......................333
IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS .......................334
ASSIST AND SOS SYSTEM — IF EQUIPPED..... 335
JACKING AND TIRE CHANGING ........................339
4500/5500 Models .................................. 339Preparations For Jacking........................... 339
Jacking Instructions 4500 And
5500 Series ............................................... 340 To Stow The Flat Or Spare —
If Equipped ................................................ 343 Hub Caps/Wheel Covers — If Equipped ... 343
JUMP STARTING ................................................ 344
Preparations For Jump Start ..................... 344Jump Starting Procedure .......................... 345
IF YOUR ENGINE OVERHEATS .........................346
GEAR SELECTOR OVERRIDE — 6–SPEED
TRANSMISSION ................................................. 347
MANUAL PARK RELEASE — 8 – SPEED
TRANSMISSION ................................................. 348
FREEING A STUCK VEHICLE .............................349
TOWING A DISABLED VEHICLE ........................350 Two-Wheel Drive Models ........................... 351
Four-Wheel Drive Models .......................... 351Emergency Tow Hooks — If Equipped ...... 352
ENHANCED ACCIDENT RESPONSE
SYSTEM (EARS) ................................................. 352
EVENT DATA RECORDER (EDR) .......................352
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE ................................................................ 353
Maintenance Plan ..................................... 354
SCHEDULED SERVICING — DIESEL ENGINE .. 357
Oil Change Indicator System — Cummins
Diesel.......................................................... 357 Perform Service Indicator — Cummins
Diesel ......................................................... 358 Maintenance Plan — Cummins Diesel
Engine ....................................................... 359
ENGINE COMPARTMENT .................................. 364
6.4L Engine ............................................... 364
6.7L Engine ................................................ 365
Checking Oil Level ..................................... 366
Adding Washer Fluid ................................. 366Maintenance-Free Battery ....................... 366Pressure Washing...................................... 367
VEHICLE MAINTENANCE .................................. 367
Engine Oil .................................................. 368
Engine Oil Filter.......................................... 369
Engine Air Cleaner Filter ........................... 369
Air Conditioner Maintenance ................... 371
Accessory Drive Belt Inspection ............... 374Draining Fuel/Water Separator Filter....... 375Engine Mounted Fuel Filter
Replacement.............................................. 376

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INTRODUCTION
Dear Customer,
Congratulations on the purchase of your new Ram. 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 Úpage 218.
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 customer-oriented documents. Within this information, you will find a description of the services that FCA US LLC
offers to its customers as well as 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
ensure 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 that is related to the trim level, engine, and version that you have purchased. Any content
introduced throughout the Owner’s Information, which 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 authorized dealers know your Ram best, have factory-trained technicians and genuine MOPAR® parts, and
care about your satisfaction.
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SYMBOLS KEY
If you do not read this entire Owner’s Manual, you may miss important
information. Observe all Cautions and Warnings.
VAN CONVERSIONS/CAMPERS
The New Vehicle Limited Warranty does not apply to body modifications or
special equipment installed by van conversion/camper manufacturers/
body builders. US residents refer to the Warranty Information, Section
2.1.C. Canadian residents refer to the “What Is Not Covered” section of
the Warranty Information. Such equipment includes video monitors,
DVD/Blu-Ray™, heaters, stoves, refrigerators, etc. For warranty coverage
and service on these items, contact the applicable manufacturer.
Operating instructions for the special equipment installed by the
conversion/camper manufacturer should also be supplied with your
vehicle. For any additional instructions, please contact your conversion/
camper manufacturer.
To obtain dimensional and technical specifications for your vehicle,
refer to the Body Builder’s Guide at https://www.ramtrucks.com/
ram-commercial/body-builders-guide.html.
VEHICLE MODIFICATIONS/ALTERATIONS
WARNING!These statements are against operating
procedures that could result in a collision,
bodily injury and/or death.
CAUTION! These statements are against procedures that
could result in damage to your vehicle.
NOTE: A suggestion which will improve installation,
operation, and reliability. If not followed, may
result in damage.
TIP: General ideas/solutions/suggestions on easier
use of the product or functionality.
PAGE REFERENCE
ARROW
Follow this reference for additional information
on a particular feature.
FOOTNOTE Supplementary and relevant information
pertaining to the topic.
WARNING!
Any modifications or alterations to this vehicle could seriously affect its
roadworthiness and safety and may lead to a collision resulting in
serious injury or death.

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SYMBOL GLOSSARY
Some car components have colored labels with symbols indicating
precautions to be observed when using this component. It is important
to follow all warnings when operating your vehicle. See below for the
definition of each symbol Úpage 107.
Red Warning Lights
Seat Belt Reminder Warning Light
Úpage 107
Air Bag Warning Light Úpage 107
Brake Warning Light Úpage 107
Hood Open Warning Light Úpage 108
Vehicle Security Warning Light — If Equipped Úpage 108
Engine Coolant Temperature Warning Light Úpage 108
Battery Charge Warning Light
Úpage 108
Oil Pressure Warning Light Úpage 108
Oil Temperature Warning Light Úpage 109
Electronic Throttle Control (ETC) Warning Light Úpage 109

Electric Power Steering (EPS) Fault Warning Light
Úpage 109
Trailer Brake Disconnected Warning Light Úpage 109
Transmission Temperature Warning Light — If Equipped
Ú page 109
Door Open Warning Light Úpage 110
Red Warning Lights
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Yellow Warning Lights
Adaptive Cruise Control (ACC) Fault Warning Light — If Equipped
Úpage 110
Engine Check/Malfunction Indicator Warning Light (MIL)
Ú page 110
Electronic Stability Control (ESC) Active Warning Light — If Equipped
Úpage 111
Electronic Stability Control (ESC) OFF Warning Light — If Equipped
Úpage 111
Low Washer Fluid Warning Light — If Equipped Úpage 111
Low Fuel Warning Light Úpage 111
Low Coolant Level Warning Light Úpage 111Loose Fuel Filler Cap Warning Light — If
Equipped
Ú page 111
Tire Pressure Monitoring System (TPMS) Warning Light — If Equipped
Úpage 111
Anti-Lock Brake System (ABS) Warning Light Úpage 113
Service Forward Collision Warning (FCW) Light — If Equipped
Úpage 113
Service 4WD Warning Light — If Equipped Úpage 113
Cruise Control Fault Warning Light Úpage 113
Yellow Warning Lights

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Yellow Indicator Lights
Forward Collision Warning (FCW) Off Indicator Light — If Equipped
Úpage 113
TOW/HAUL Indicator Light Úpage 113
Trailer Merge Assist Indicator Light — If Equipped
Ú page 113
Cargo Light — If Equipped Úpage 113
Snowplow Mode Indicator Light — If Equipped Úpage 113
Cold Ambient Derate Mode Indicator Light — If Equipped
Ú page 114
Diesel Exhaust Brake Indicator Light — If Equipped
Ú page 1144WD Lock Indicator Light
Úpage 114
4WD Low Indicator Light — If Equipped Úpage 114
4WD High Indicator Light — If Equipped Úpage 114
NEUTRAL Indicator Light — If Equipped Úpage 114
Low Diesel Exhaust Fluid (DEF) Indicator Light — If Equipped
Ú page 114
Wait To Start Light — If Equipped Úpage 114
Water In Fuel Indicator Light — If Equipped Úpage 114
Yellow Indicator Lights
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