2021 RAM CHASSIS CAB park assist

3
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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4
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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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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GETTING TO KNOW YOUR VEHICLE53
The system directs the headlights to light up the
road in the best way, taking into account the
speed of the vehicle and the bend or corner
angle, as well as the speed of the vehicle while
the steering wheel is being turned.

The adaptive lights are automatically activated
when the vehicle is traveling above approximately
5 mph (8 km/h).

This system can be turned on/off through the
Uconnect Settings under “Steering Directed
Lights” Úpage 228.
PARKING LIGHTS AND PANEL LIGHTS
To turn on the parking lights and instrument
panel lights, rotate the headlight switch
clockwise. To turn off the parking lights, rotate
the headlight switch back to the O (off) position.
AUTOMATIC HEADLIGHTS WITH WIPERS

If your vehicle is equipped with Automatic
Headlights, it also has this customer-programmable
feature. When your headlights are in the automatic
mode and the engine is running, they will
automatically turn on when the wiper system is on.
This feature is programmable through the Uconnect
system
Ú
page 228. If your vehicle is equipped with the Rain Sensing
Wiper system

Ú
page 58, and it is activated, the
headlights will automatically turn on after the wipers
complete five wipe cycles within approximately one
minute, and they will turn off approximately four
minutes after the wipers completely stop.

NOTE:
When your headlights come on during the
daytime, the instrument panel lights will auto -
matically dim to the lower nighttime intensity.
HEADLIGHT DELAY

To assist when exiting the vehicle, the headlight
delay feature will leave the headlights on for up to
90 seconds. This delay is initiated when the ignition
is placed in the OFF position while the headlight
switch is on, and then the headlight switch is cycled
off. Headlight delay can be cancelled by either
turning the headlight switch on then off, or by
placing the ignition in the ON position.

NOTE:
This feature can be programmed through the
Uconnect system Ú page 228.
The headlight delay feature is automatically
activated if the headlight switch is left in the
AUTO position when the ignition is placed in
the OFF position.
LIGHTS-ON REMINDER
If the headlights, parking lights, or cargo lights
are left on after the ignition is placed in the OFF
position, a chime will sound and a message will
appear in the instrument cluster display when
the driver’s door is opened.
FRONT FOG LIGHTS — IF EQUIPPED
To activate the front fog lights, turn on the
parking lights or low beam headlights and push
in the center of the headlight switch control
knob. Pushing the headlight switch control knob
a second time will turn the front fog lights off.

Front Fog Light Switch

2

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54GETTING TO KNOW YOUR VEHICLE
TURN SIGNALS
Move the multifunction lever up or down to
activate the turn signals. The arrows on each
side of the instrument cluster flash to show
proper operation.
NOTE:
If either light remains on and does not flash, or
there is a very fast flash rate, check for a defec -
tive outside light bulb.
LANE CHANGE ASSIST — IF EQUIPPED
Lightly push the multifunction lever up or down,
without moving beyond the detent, and the turn
signal will flash three times then automatically
turn off.
CARGO LIGHTS/TRAILER SPOTTER
L
IGHTS — IF EQUIPPED
The cargo lights (if equipped) and trailer spotter
lights (if equipped) are turned on by pushing the
cargo lights button located on the lower half of
the headlight switch.
Cargo Lights Button On Headlight Switch

The cargo lights will turn on for approximately
60 seconds when a key fob unlock button is
pushed, as part of the Illuminated Entry feature.
When these lights are activated using the
button on the headlight switch, the trailer
spotter lights will remain illuminated when
the vehicle transmission is in PARK, NEUTRAL,
or REVERSE. The trailer spotter lights will turn
off when the vehicle transmission is placed in
DRIVE.
BATTERY SAVER
Timers are set to both the interior and exterior
lights to protect the life of your vehicle’s battery.
If the ignition is OFF, the interior lights will
automatically turn off when:
Any door is left ajar for 10 minutes.
The Dome Off button is pushed.
The cargo and spotter lights are manually
activated by the headlight switch.
NOTE:
Battery saver mode is canceled if the ignition is
ON.
If the headlights remain on while the ignition is
placed in the OFF position, the exterior lights will
automatically turn off after eight minutes. If the
headlights are turned on and left on for eight
minutes while the ignition is OFF, the exterior
lights will automatically turn off.

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98GETTING TO KNOW YOUR INSTRUMENT PANEL
Settings — If Equipped
Personal Settings allows the driver to set and
recall features when the transmission is in
PARK. Push and release the
up or down arrow
button until Settings displays in the instrument
cluster display.
Follow the prompts to display and set any of the
following Vehicle Settings. NOTE:
Your vehicle may be equipped with the following
settings.
If equipped with a base radio (Non-Touch
-
screen) Vehicle Settings will be included in
the instrument cluster display.
If equipped with a Touchscreen radio, the
Vehicle Settings will be included in the radio
head unit.
Setting Names Setting Names Abbreviated
(Left Submenu Layer) Submenus (Right Submenu Layer)
Language Select
Language English, Spanish, French, Arabic
Units Units U.S.; Metric
ParkSense ParkSense
Front Volume — Low; Medium; High
Rear Volume — Low; Medium; High
Tilt Mirror in Reverse Tilt Mirror in R On; Off
Rain Sensing Wipers Auto Wipers On; Off
Hill Start Assist Hill Start Assist On; Off
Headlights Off Delay Lights Off Delay 0 seconds; 30 seconds; 60 seconds; 90 seconds
Illuminated Approach Lights w/ Unlock 0 seconds; 30 seconds; 60 seconds; 90 seconds
Headlights On with Wipers Lights w/ Wipers On; Off
Automatic High beams Auto High beams On; Off

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102GETTING TO KNOW YOUR INSTRUMENT PANEL
Your vehicle has the ability to alert you to
additional maintenance required on your
vehicle or engine. The following messages may
display in your instrument cluster display:

Perform Service — Your vehicle will require
emissions maintenance at a set interval.
To help remind you when this maintenance
is due, the instrument cluster display will
display “Perform Service”. When the “Perform
Service” message is displayed in the instru -
ment cluster display it is necessary to have the
emissions maintenance performed. Emissions
maintenance may include replacing the
Closed Crankcase Ventilation (CCV) filter
element. The procedure for clearing and reset -
ting the "Perform Service" indicator message is
located in the appropriate Service Information.
Exhaust System — Regeneration Required
Now — "Exhaust Filter XX% Full Safely Drive at
Highway Speeds to Remedy" will be displayed
in the instrument cluster display if the exhaust
particulate filter reaches 80% of its maximum
storage capacity. Under conditions of exclu -
sive short duration and low speed driving
cycles, your Cummins diesel engine and
exhaust after-treatment system may never
reach the conditions required to remove the
trapped PM. If this occurs, the “Exhaust Filter
XX% Full Safely Drive at Highway Speeds to
Remedy” message will be displayed in the
instrument cluster display. If this message is
displayed, you will hear one chime to assist in
alerting you of this condition

By simply driving your vehicle at highway
speeds for as little as 45 minutes, you can
remedy the condition in the particulate filter
system and allow your Cummins diesel
engine and exhaust after-treatment system
to remove the trapped PM and restore the
system to normal operating condition.Exhaust System — Regeneration In Process
Exhaust Filter XX% Full — Indicates that the
DPF is self-cleaning. Maintain your current
driving condition until regeneration is
completed.

Exhaust System — Regeneration Completed —
This message indicates that the DPF
self-cleaning is completed. If this message is
displayed, you will hear one chime to assist in
alerting you of this condition.
Exhaust Service Required — See Dealer
Now — This message indicates regeneration
has been disabled due to a system malfunc -
tion. At this point the engine Powertrain
Control Module (PCM) will register a fault code,
the instrument panel will display a MIL light.

WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such
materials might be grass or leaves coming
into contact with your exhaust system. Do not
park or operate your vehicle in areas where
your exhaust system can contact anything
that can burn.
CAUTION!
See an authorized dealer, as damage to
the exhaust system could occur soon with
continued operation.

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GETTING TO KNOW YOUR INSTRUMENT PANEL109
Do not operate the vehicle until the cause is
corrected. This light does not indicate how
much oil is in the engine. The engine oil level
must be checked under the hood.
Oil Temperature Warning Light
This warning light will illuminate to
indicate the engine oil temperature is
high. If the light turns on while driving,
stop the vehicle and shut off the
engine as soon as possible. Wait for oil
temperature to return to normal levels.
Electronic Throttle Control (ETC) Warning
Light
This warning light will illuminate to
indicate a problem with the ETC
system. If a problem is detected while
the vehicle is running, the light will
either stay on or flash depending on the nature
of the problem. Cycle the ignition when the
vehicle is safely and completely stopped and
the transmission is placed in the PARK position.
The light should turn off. If the light remains
on with the vehicle running, your vehicle will
usually be drivable; however, see an authorized
dealer for service as soon as possible. NOTE:
This light may turn on if the accelerator and
brake pedals are pressed at the same time.
If the light continues to flash when the vehicle is
running, immediate service is required and you
may experience reduced performance, an
elevated/rough idle, or engine stall and your
vehicle may require towing. The light will come
on when the ignition is placed in the ON/RUN or
ACC/ON/RUN position and remain on briefly as
a bulb check. If the light does not come on
during starting, have the system checked by an
authorized dealer.Electric Power Steering (EPS) Fault
Warning Light
This warning light will turn on when
there's a fault with the EPS system
Ú
page 163.
Trailer Brake Disconnected Warning Light
This warning light will illuminate when
the Trailer Brake has been
disconnected Ú page 200.
Transmission Temperature Warning
Light — If Equipped
This warning light will illuminate to
warn of a high transmission fluid
temperature. This may occur with
strenuous usage such as trailer
towing. If this light turns on, stop the vehicle and
run the engine at idle or slightly faster, with the
transmission in PARK or NEUTRAL, until the
light turns off. Once the light turns off, you may
continue to drive normally.
WARNING!
Continued operation with reduced assist
could pose a safety risk to yourself and
others. Service should be obtained as soon
as possible.
WARNING!
If you continue operating the vehicle when
the Transmission Temperature Warning Light
is illuminated you could cause the fluid to boil
over, come in contact with hot engine or
exhaust components and cause a fire.
3

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