2021 RAM 1500 four wheel drive

5
AUTOMATIC TRANSMISSION .......................... 154 Ignition Park Interlock ...............................155
Brake/Transmission Shift Interlock
System .......................................................155 Eight-Speed Automatic Transmission.......156
FOUR-WHEEL DRIVE OPERATION —
IF EQUIPPED ...................................................... 161
Four-Position Electronically Shifted
Transfer Case — If Equipped ....................161 Five-Position Electronically Shifted
Transfer Case — If Equipped ....................163
ACTIVE-LEVEL FOUR CORNER AIR
SUSPENSION SYSTEM — IF EQUIPPED ........... 165 Description .................................................165
Air Suspension Modes...............................167
Instrument Cluster Display Messages......168Operation....................................................168
ACTIVE-LEVEL FOUR CORNER AIR
SUSPENSION SYSTEM (REBEL MODELS
ONLY) — IF EQUIPPED ....................................... 169 Description .................................................169
Air Suspension Modes...............................171
Instrument Cluster Display Messages......171Operation....................................................172
AXLE LOCK SYSTEM — IF EQUIPPED .............. 173
LIMITED-SLIP DIFFERENTIAL —
IF EQUIPPED ....................................................... 174
POWER STEERING ............................................. 174 Electric Power Steering ............................174 FUEL SAVER TECHNOLOGY 5.7L ENGINES
ONLY — IF EQUIPPED......................................... 175
STOP/START SYSTEM — IF EQUIPPED ............ 175 Autostop Mode........................................... 175
Possible Reasons The Engine Does Not
Autostop ..................................................... 175 To Start The Engine While In Autostop
Mode........................................................... 176 To Manually Turn Off The Stop Start
System ........................................................ 176 To Manually Turn On The Stop Start
System ........................................................ 177 System Malfunction................................... 177
CRUISE CONTROL SYSTEMS —
IF EQUIPPED ...................................................... 177
Cruise Control — If Equipped..................... 177Adaptive Cruise Control (ACC) —
If Equipped ................................................. 179
PARKSENSE FRONT/REAR PARK ASSIST
SYSTEM — IF EQUIPPED ....................................189
ParkSense Sensors ................................... 190
ParkSense Warning Display ...................... 190
ParkSense Display ..................................... 190
Enabling And Disabling Front And/Or
Rear ParkSense ......................................... 193 Service The ParkSense Park Assist
System ........................................................ 193 Cleaning The ParkSense System.............. 194
ParkSense System Usage Precautions .... 194 PARKSENSE ACTIVE PARK ASSIST
SYSTEM — IF EQUIPPED ................................... 195
Enabling And Disabling The ParkSense
Active Park Assist System ......................... 196 Parallel/Perpendicular Parking Space
Assistance Operation ................................ 197
LANESENSE — IF EQUIPPED ........................... 199
LaneSense Operation................................ 199
Turning LaneSense On Or Off ................... 200
LaneSense Warning Message .................. 200Changing LaneSense Status..................... 202
PARKVIEW REAR BACK UP CAMERA ............. 202
AUX Camera — If Equipped ...................... 204
SURROUND VIEW CAMERA SYSTEM — IF
EQUIPPED ........................................................... 204
AUX Camera — If Equipped ...................... 208
REFUELING THE VEHICLE — GASOLINE
ENGINE ................................................................ 208
REFUELING THE VEHICLE — DIESEL
ENGINE ............................................................... 210
Avoid Using Contaminated Fuel ............... 210Bulk Fuel Storage — Diesel Fuel ............... 210Diesel Exhaust Fluid .................................. 211
Diesel Exhaust Fluid Storage .................... 211Adding Diesel Exhaust Fluid ..................... 211

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6
VEHICLE LOADING ............................................. 213 Gross Vehicle Weight Rating (GVWR) ......213Payload .......................................................213Gross Axle Weight Rating (GAWR) ............213
Tire Size ......................................................213
Rim Size......................................................214
Inflation Pressure ......................................214
Curb Weight................................................214
Loading .......................................................214
TRAILER TOWING .............................................. 214
Common Towing Definitions .....................214Trailer Hitch Type and Maximum Trailer
Weight.........................................................218 Trailer Towing Weights (Maximum Trailer
Weight Ratings) ..........................................218 Trailer And Tongue Weight ........................ 219Trailer Reverse Steering Control ...............219
Towing Requirements ...............................221
Towing Tips ................................................227
SNOWPLOW ...................................................... 227
Before Plowing ........................................... 228
Snowplow Prep Package Model
Availability .................................................. 228 Over The Road Operation With Snowplow
Attached .....................................................229 Operating Tips ............................................229
General Maintenance ................................229 RECREATIONAL TOWING (BEHIND
MOTORHOME) ...................................................230
Towing This Vehicle Behind Another
Vehicle ........................................................ 230 Recreational Towing — Two-Wheel Drive
Models ........................................................ 230 Recreational Towing — Four-Wheel Drive
Models ........................................................ 231
DRIVING TIPS ...................................................... 234
Driving On Slippery Surfaces ................... 234
Driving Through Water .............................. 234
Off-Road Driving Tips ................................. 235
MULTIMEDIA
UCONNECT SYSTEMS .......................................236
CYBERSECURITY ............................................... 236
UCONNECT SETTINGS ........................................ 237Customer Programmable Features .......... 237
HEAD-UP DISPLAY (HUD) .................................. 254
UCONNECT INTRODUCTION ..............................256
System Overview ....................................... 256Safety And General Information ............... 258
UCONNECT MODES ............................................259
Steering Wheel Audio Controls ................ 259
Radio Mode ............................................... 259Media Mode .............................................. 268
Phone Mode .............................................. 271 CONNECTED VEHICLE SERVICES —
IF EQUIPPED ...................................................... 282
Is My Vehicle Connected? ......................... 282
Introduction To Connected Vehicle
Services ..................................................... 282 Getting Started With Connected Vehicle
Services ..................................................... 284 Using SiriusXM Guardian™ ...................... 286
Manage My SiriusXM Guardian™
Account ...................................................... 301
CONNECTED SERVICES FAQs ......................... 301
Connected Services SOS FAQs ................ 301
Connected Services Remote Door Lock/
Unlock FAQs .............................................. 302 Connected Services Roadside
Assistance FAQs ....................................... 302 Connected Services Send & Go FAQs ..... 302Connected Services Vehicle Finder
FAQs .......................................................... 303 Connected Services Stolen Vehicle
Assistance FAQs ....................................... 303 Connected Services Remote Vehicle
Start FAQs ................................................. 303 Connected Services Remote Horn &
Lights FAQs ................................................ 304 Connected Services Account FAQs........... 304
Data Collection & Privacy .......................... 306

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7
OFF-ROAD PAGES — IF EQUIPPED .................. 307 Off-Road Pages Status Bar .......................307
Vehicle Dynamics.......................................308
Accessory Gauge........................................308
Pitch & Roll .................................................308
Suspension ................................................309
RADIO OPERATION AND MOBILE PHONES.... 309
Regulatory And Safety Information........... 309
SAFETY
SAFETY FEATURES ............................................ 310 Anti-Lock Brake System (ABS) ................. 310
Electronic Brake Control (EBC) System ...311
AUXILIARY DRIVING SYSTEMS ........................ 318
Blind Spot Monitoring (BSM) —
If Equipped ................................................318 Forward Collision Warning (FCW) With
Mitigation — If Equipped............................324 Tire Pressure Monitoring System
(TPMS) ........................................................ 327
OCCUPANT RESTRAINT SYSTEMS .................. 334
Occupant Restraint Systems Features ....334
Important Safety Precautions ...................334Seat Belt Systems ..................................... 335Supplemental Restraint Systems (SRS) ...342Child Restraints..........................................355 SAFETY TIPS ....................................................... 369
Transporting Passengers .......................... 369Transporting Pets ...................................... 369
Safety Checks You Should Make Inside
The Vehicle ................................................ 369 Periodic Safety Checks You Should
Make Outside The Vehicle ........................ 371 Exhaust Gas .............................................. 371
Carbon Monoxide Warnings ...................... 372IN CASE OF EMERGENCY
HAZARD WARNING FLASHERS........................373
ASSIST AND SOS SYSTEM — IF EQUIPPED .... 373
JACKING AND TIRE CHANGING .......................377 Preparations For Jacking........................... 377
Jack Location ............................................. 378
Removal Of Jack And Tools ....................... 378
Removing The Spare Tire .......................... 380Jacking Instructions ................................... 381
To Stow The Flat Or Spare ........................ 384
Reinstalling The Jack And Tools ............... 385
JUMP STARTING ................................................ 386
Preparations For Jump Start ..................... 386Jump Starting Procedure .......................... 387
REFUELING IN EMERGENCY –
IF EQUIPPED ...................................................... 389
IF YOUR ENGINE OVERHEATS .........................389
MANUAL PARK RELEASE .................................. 390
FREEING A STUCK VEHICLE .............................391 TOWING A DISABLED VEHICLE ........................ 392
Two-Wheel Drive Models ........................... 393
Four-Wheel Drive Models .......................... 393
Emergency Tow Hooks — If Equipped ...... 394
ENHANCED ACCIDENT RESPONSE SYSTEM
(EARS) ................................................................ 394
EVENT DATA RECORDER (EDR) ....................... 394
SERVICING AND MAINTENANCE
SCHEDULED SERVICING — GASOLINE
ENGINE ............................................................... 395
Maintenance Plan ..................................... 395
SCHEDULED SERVICING — DIESEL ENGINE .. 399
Maintenance Plan — Diesel Fuel Up To
B5 Biodiesel .............................................. 400 Additional Maintenance — B6 To B20
Biodiesel..................................................... 403
ENGINE COMPARTMENT .................................. 404
3.6L Engine With Stop/Start .................... 404
5.7L Engine Without Stop/Start ............... 4055.7L Engine With Stop/Start..................... 406
3.0L Diesel Engine .................................... 407Checking Oil Level ..................................... 408
Adding Washer Fluid ................................. 408Maintenance-Free Battery ....................... 409Pressure Washing...................................... 409

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10
INTRODUCTION
Dear Customer, congratulations on the purchase of your new Ram 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 Úpage 234.
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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134GETTING TO KNOW YOUR INSTRUMENT PANEL
Air Suspension Normal Height Indicator
Light— If Equipped
This light will illuminate when the air
suspension system is set to the
Normal setting Úpage 165.
Air Suspension Aerodynamic Height
Indicator Light— If Equipped
This light will illuminate when the air
suspension system is set to the
Aerodynamic setting.
Entry/Exit Indicator Light— If Equipped
This light will illuminate when the
vehicle is automatically lowered from
ride height position downward for
easy entry and exit of the vehicle
Úpage 165.
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.
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.
Rear Axle Lock Indicator Light
This light indicates when the rear axle
lock has been activated.
4WD Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive
mode, and the front and rear
driveshafts are mechanically locked
together forcing the front and rear wheels to
rotate at the same speed.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the 4WD 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 Ú
page 161.
4WD High Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the 4WD 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.
Low Diesel Exhaust Fluid (DEF) Indicator
Light — If Equipped
The Low DEF Indicator will illuminate
if the vehicle is low on Diesel Exhaust
Fluid (DEF) Ú page 211.

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136GETTING TO KNOW YOUR INSTRUMENT PANEL
Front Fog Indicator Light — If Equipped
This indicator light will illuminate
when the front fog lights are on.
Turn Signal Indicator Lights
When the left or right turn signal is
activated, the turn signal indicator will
flash independently and the
corresponding exterior turn signal
lamps will flash. Turn signals can be activated
when the multifunction lever is moved down
(left) or up (right).
NOTE:
A continuous chime will sound if the vehicle is
driven more than 1 mile (1.6 km) with either
turn signal on.
Check for an inoperative outside light bulb if
either indicator flashes at a rapid rate.
If equipped with fog lamps, the fog lamp on
the side of the activated turn signal will also
illuminate to provide additional light when
turning.
Cruise Control SET Indicator Light — If
Equipped With Premium Instrument
Cluster Display
This light will turn on when the cruise
control is set Ú page 177.
Stop/Start Active Indicator Light — If
Equipped
This indicator light will illuminate
when the Stop/Start function is in
“Autostop” mode Ú page 175.
4WD AUTO Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive auto
mode, and the front axle is engaged,
but the vehicle's power is sent to the
rear wheels. Four-wheel drive will be
automatically engaged when the vehicle senses
a loss of traction Ú page 161.
WHITE INDICATOR LIGHTS
Adaptive Cruise Control (ACC) Ready Light
— If Equipped
This light will illuminate when the
vehicle equipped with ACC has been
turned on but not set Ú page 179.
Cruise Control Ready Indicator
This indicator light will illuminate
when the cruise control is ready, but
not set Úpage 177.
Cruise Control SET Indicator Light — If
Equipped With Base/Midline Instrument
Cluster Display
This light will turn on when the cruise
control is set Ú page 177.

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STARTING AND OPERATING157
(Continued)
(Continued)
(Continued)
When parking on a hill, apply the parking brake
before shifting the transmission to PARK. As an
added precaution, turn the front wheels toward
the curb on a downhill grade and away from the
curb on an uphill grade.
NOTE:
On four-wheel drive vehicles be sure that the
transfer case is in a drive position.
When exiting the vehicle, always:
Apply the parking brake.
Shift the transmission into PARK.
Turn the engine off.
Remove the key fob from the vehicle.
WARNING!
Never use the PARK position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when exiting the vehicle
to guard against vehicle movement and
possible injury or damage.
Your vehicle could move and injure you and
others if it is not in PARK. Check by trying to
move the transmission gear selector out of
PARK with the brake pedal released. Make
sure the transmission is in PARK before
exiting the vehicle.
The transmission may not engage PARK if
the vehicle is moving. Always bring the
vehicle to a complete stop before shifting to
PARK, and verify that the transmission gear
position indicator solidly indicates PARK (P)
without blinking. Ensure that the vehicle is
completely stopped, and the PARK position
is properly indicated, before exiting the
vehicle.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accel -
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
WARNING! (Continued)
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle, always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, and turn the igni -
tion OFF. When the ignition is in the OFF
mode, the transmission is locked in PARK,
securing the vehicle against unwanted
movement.
When exiting the vehicle, always make sure
the ignition is in the OFF mode, remove the
key fob from the vehicle, and lock the
vehicle.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle.
Allowing children to be in a vehicle unat -
tended is dangerous for a number of
reasons. A child or others could be seriously
or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the transmission gear
selector.
WARNING! (Continued)
4

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STARTING AND OPERATING159
During extremely cold temperatures (-22°F
[-30°C] or below), transmission operation may
be modified depending on engine and
transmission temperature as well as vehicle
speed. Normal operation will resume once the
transmission temperature has risen to a
suitable level.
Transmission Limp Home Mode
Transmission function is monitored
electronically for abnormal conditions. If a
condition is detected that could result in
transmission damage, Transmission Limp
Home Mode is activated. In this mode, the
transmission may operate only in certain gears,
or may not shift at all. Vehicle performance may
be severely degraded and the engine may stall.
In some situations, the transmission may not
re-engage if the engine is turned off and
restarted. The Malfunction Indicator Light (MIL)
may be illuminated. A message in the
instrument cluster will inform the driver of the
more serious conditions, and indicate what
actions may be necessary. In the event of a momentary problem, the
transmission can be reset to regain all forward
gears by performing the following steps:
NOTE:
In cases where the instrument cluster message
indicates the transmission may not re-engage
after engine shutdown, perform this procedure
only in a desired location (preferably, at an
authorized dealer).

1. Stop the vehicle.

2. Shift the transmission into PARK, if
possible. If not, shift the transmission to
NEUTRAL.
3. Push and hold the ignition switch until the engine turns off.
4. Wait approximately 30 seconds.
5. Restart the engine.
6. Shift into the desired gear range. If the problem is no longer detected, the
transmission will return to normal
operation. NOTE:
Even if the transmission can be reset, we
recommend that you visit an authorized dealer
at your earliest possible convenience. An autho
-
rized dealer has diagnostic equipment to
assess the condition of your transmission. If the
transmission cannot be reset, an authorized
dealer service is required.Electronic Range Select (ERS) Operation
The Electronic Range Select (ERS) shift control
allows the driver to limit the highest available
gear when the transmission is in DRIVE and ERS
mode is not active. For example, if you set the
transmission gear limit to FOURTH gear, the
transmission will not shift above FOURTH gear
(except to prevent engine overspeed), but will
shift through the lower gears normally.
You can switch between DRIVE and ERS mode
at any vehicle speed. When the transmission
gear selector is in DRIVE, the transmission will
operate automatically, shifting between all
available gears. Tapping the - button (on the
steering wheel) will activate ERS mode, display
the current gear in the instrument cluster, and
set that gear as the top available gear. Once in
ERS mode, tapping the - or + button will change
the top available gear.4

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