2021 RAM 1500 stop start

4
SLIDE-IN CAMPERS .............................................97 Camper Applications ................................... 97
TRI-FOLD TONNEAU COVER — IF EQUIPPED .....97
Tonneau Cover Components....................... 97
Tri-Fold Tonneau Cover Folding For
Driving Or Removal ...................................... 98 Tri-Fold Tonneau Cover Installation ..........101
Tri-Fold Tonneau Cover Cleaning ..............103
GETTING TO KNOW YOUR
INSTRUMENT PANEL
BASE / MIDLINE INSTRUMENT CLUSTER —
GASOLINE ........................................................... 104
Base / Midline Instrument Cluster
Descriptions — Gasoline ............................105
PREMIUM INSTRUMENT CLUSTER —
GASOLINE ........................................................... 107
Premium Instrument Cluster
Descriptions — Gasoline ............................108
BASE / MIDLINE INSTRUMENT CLUSTER —
DIESEL ................................................................. 109
Base / Midline Instrument Cluster
Descriptions — Diesel ................................110
PREMIUM INSTRUMENT CLUSTER —
DIESEL ................................................................. 112
Premium Instrument Cluster
Descriptions — Diesel ...............................113 INSTRUMENT CLUSTER DISPLAY..................... 114
Instrument Cluster Display Controls......... 114
Oil Life Reset .............................................. 115
Display Menu Items ................................... 116
Diesel Particulate Filter (DPF)
Messages .................................................. 121 Displays ...................................................... 123
Diesel Exhaust Fluid (DEF) Warning
Messages ................................................... 123 Diesel Exhaust Fluid (DEF) Fault
Warning Messages .................................... 124 Battery Saver On/Battery Saver Mode
Message — Electrical Load Reduction
Actions — If Equipped ................................ 125
WARNING LIGHTS AND MESSAGES ................126
Red Warning Lights ................................... 126
Yellow Warning Lights ............................... 129Yellow Indicator Lights .............................. 133
Green Indicator Lights ............................... 135White Indicator Lights ............................... 136Blue Indicator Lights.................................. 137
ONBOARD DIAGNOSTIC SYSTEM — OBD II..... 137
Onboard Diagnostic System (OBD II)
Cybersecurity ............................................. 138
EMISSIONS INSPECTION AND
MAINTENANCE PROGRAMS .............................138
STARTING AND OPERATING
STARTING THE ENGINE ..................................... 140
Automatic Transmission............................ 141AutoPark ..................................................... 141
Tip Start Feature ....................................... 143
Keyless Enter-N-Go — Ignition................... 143
Normal Starting Using ENGINE START/
STOP Button — Gasoline Engine .............. 143 Normal Starting Using ENGINE START/
STOP Button — Diesel Engine .................. 144 Cold Weather Operation (Below –22°F
Or −30°C) ................................................. 146 After Starting .............................................. 146Starting Fluids — Diesel Engine Only ........ 146
NORMAL OPERATION — DIESEL ENGINE ....... 146
Cold Weather Precautions ........................ 146
Engine Idling .............................................. 148Stopping The Engine ................................. 148
ENGINE BLOCK HEATER — IF EQUIPPED ....... 150
ENGINE BREAK-IN RECOMMENDATIONS —
GASOLINE ENGINE ........................................... 150
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE .................................................. 151
PARKING BRAKE ............................................... 151 Electric Park Brake (EPB) .......................... 151

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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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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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14
Service Stop/Start System Warning Light Úpage 133
Service 4WD Warning Light — If Equipped Úpage 133
Cruise Control Fault Warning Light Úpage 133
Yellow Indicator Lights
Forward Collision Warning Off Indicator Light —
If Equipped
Ú page 133
Air Suspension Payload Protection Indicator Light — If Equipped
Úpage 133
Trailer Merge Assist Indicator Light — If Equipped
Ú page 133
TOW/HAUL Indicator Light Úpage 133
Yellow Warning Lights
Cargo Light On Indicator Light
Úpage 133
Air Suspension Off-Road 1 Indicator Light — If Equipped
Ú page 133
Air Suspension Off-Road 2 Indicator Light — If Equipped
Ú page 133
Air Suspension Normal Height Indicator Light — If Equipped
Ú page 134
Air Suspension Aerodynamic Height Indicator Light — If Equipped
Úpage 134
Entry/Exit Indicator Light — If Equipped Úpage 134
Air Suspension Ride Height Raising Indicator Light — If Equipped
Úpage 134
Yellow Indicator Lights

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16
Turn Signal Indicator Lights Úpage 136
Cruise Control SET Indicator Light — If Equipped With A Premium Instrument Cluster
Úpage 136
Stop/Start Active Indicator Light Úpage 136
4WD AUTO Indicator Light — If Equipped Úpage 136
White Indicator Lights
Adaptive Cruise Control (ACC) Ready Light — If
Equipped
Ú page 136
Cruise Control Ready Indicator Úpage 136
Speed Control SET Indicator Light — If Equipped With Base/Midline Instrument Cluster Display
Úpage 136
Green Indicator Lights
Hill Descent Control (HDC) Indicator Light — If
Equipped
Ú page 137
LaneSense Indicator Light — If Equipped Úpage 137
Blue Indicator Lights
High Beam Indicator Light
Úpage 137
White Indicator Lights

21_DT_OM_EN_USC_t.book Page 16

GETTING TO KNOW YOUR VEHICLE21
(Continued)
IGNITION SWITCH
KEYLESS ENTER-N-GO — IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button as long
as the key fob is in the passenger compartment.
The START/STOP ignition button has several
operating modes that are labeled and will
illuminate when in position. These modes are
OFF, ACC, ON/RUN, and START.
Keyless Push Button Ignition

The push button ignition can be placed in the
following modes: OFF

The engine is stopped
Some electrical devices (e.g. central locking,
alarm, etc.) are still available
ACC
Engine is not started
Some electrical devices are available (e.g.
power sunroof, power windows etc.)
ON/RUN
Driving position
All the electrical devices are available (e.g.
climate controls, heated seats, etc.)
START
The engine will start (when foot is on the
brake)
NOTE:
If the ignition switch does not change the mode
by pushing the button, the key fob may have a
low or depleted battery. In this situation, a back
up method can be used to operate the ignition
switch. Put the nose side (side opposite of the
emergency key) of the key fob against the START/STOP ignition button and push to
operate the ignition switch.

Back Up Starting Method

1 — OFF
2 — ACC (Accessory)
3 — ON/RUN
WARNING!
When exiting the vehicle, always remove
the key fob from the vehicle and lock your
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 gear selector.
2

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GETTING TO KNOW YOUR VEHICLE23
To drive the vehicle, push the unlock button,
insert the key into the ignition, and turn to the
ON/RUN position.
NOTE:
With Remote Start, the engine will only run
for 15 minutes.
Remote Start can only be used twice.
If an engine fault is present or fuel level is
low, the vehicle will start and then shut down
in 10 seconds.
The parking lights will turn on and remain on
during Remote Start mode.
For security, power window and power
sunroof operation (if equipped) are disabled
when the vehicle is in the Remote Start
mode.
The ignition must be placed in the ON/RUN
position before the Remote Start sequence
can be repeated for a third cycle. All of the following conditions must be met
before the engine will remote start:
Gear selector in PARK
Doors closed
Hood closed
Hazard switch off
Brake switch inactive (brake pedal not
pushed)
Battery at an acceptable charge level
PANIC button not pushed
Fuel meets minimum requirement
System not disabled from previous remote
start event
Vehicle Security system not active
Malfunction Indicator Light is not illuminated
TO EXIT REMOTE START MODE
To drive the vehicle after starting the Remote
Start system, either push and release the
unlock button on the key fob to unlock the
doors, or unlock the vehicle using Keyless
Enter-N-Go — Passive Entry via the door
handles, and disarm the vehicle security system
(if equipped). Then, prior to the end of the
15 minute cycle, press the brake pedal and
push and release the START/STOP ignition
button.
WARNING!
Do not start or run an engine in a closed
garage or confined area. Exhaust gas
contains Carbon Monoxide (CO) which is
odorless and colorless. Carbon Monoxide is
poisonous and can cause serious injury or
death when inhaled.
Keep key fobs away from children. Opera
-
tion of the Remote Start System, windows,
door locks or other controls could cause
serious injury or death.
2

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24GETTING TO KNOW YOUR VEHICLE
The Remote Start system will turn the engine off
with another push and release of the Remote
Start button on the key fob, or if the engine is
allowed to run for the entire 15 minute cycle.
Once the ignition is placed in the ON/RUN
position, the climate controls will resume the
previously set operations (temperature, blower
control, etc.).
NOTE:
To avoid unintentional shutdowns, the
system will disable for two seconds after
receiving a valid Remote Start request.
For vehicles equipped with the Keyless
Enter-N-Go — Passive Entry feature, the
message “Remote Start Active — Push Start
Button” will display in the instrument cluster
display until you push the START/STOP igni -
tion button.
REMOTE START FRONT DEFROST
A
CTIVATION — IF EQUIPPED
When remote start is active, and the outside
ambient temperature is 40°F (4.5°C) or below,
the system will automatically activate front
defrost for 15 minutes or less. The time is
dependent on the ambient temperature. Once
the timer expires, the system will automatically adjust the settings depending on ambient
conditions. See “Remote Start Comfort Systems
— If Equipped” in the next section for detailed
operation.
REMOTE START COMFORT SYSTEMS —
I
F EQUIPPED
When remote start is activated, the front and
rear defrost will automatically turn on in cold
weather. The heated steering wheel and driver
heated seat feature will turn on if programmed
in the comfort menu screen within Uconnect
Settings Ú page 237. In warm weather, the
driver vented seat feature will automatically
turn on when the remote start is activated and
is programmed in the comfort menu screen.
The vehicle will adjust the climate control
settings depending on the outside ambient
temperature.
Automatic Temperature Control (ATC) — If
Equipped
The climate controls automatically adjust to an
optimal temperature and mode, dependent on
the outside ambient temperature. When the
ignition is placed in the ON/RUN position, the
climate controls will resume their previous
settings. Manual Temperature Control (MTC) — If
Equipped
In ambient temperatures of 40°F (4.5°C) or
below, the climate settings will default to
maximum heat, with fresh air entering the
cabin. If the front defrost timer expires, the
vehicle will enter Mix Mode.
In ambient temperatures from 40°F (4.5°C)
to 78°F (26°C), the climate settings will be
based on the last settings selected by the
driver.
In ambient temperatures of 78°F (26°C) or
above, the climate settings will default to
MAX A/C, Bi-Level mode, with Recirculation
on.
For more information on ATC, MTC, and climate
control settings, see Ú page 60.
NOTE:
These features will stay on through the duration
of remote start, or until the ignition is placed in
the ON/RUN position. The climate control
settings will change, and exit the automatic
defaults, if manually adjusted by the driver
while the vehicle is in remote start mode. This
includes turning the climate controls off using
the OFF button.

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