2020 Ram 3500 ECU

2
INTRODUCTION
HOW TO USE THIS MANUAL ...............................12
Essential Information .................................. 12
Symbols ........................................................ 12
WARNINGS AND CAUTIONS ...............................12
VAN CONVERSIONS/CAMPERS ..........................12
VEHICLE MODIFICATIONS/ALTERATIONS ........12
GETTING TO KNOW YOUR VEHICLE
VEHICLE USER GUIDE — IF EQUIPPED ...............13
KEYS ......................................................................14
Key Fob......................................................... 14
IGNITION SWITCH .................................................17
Keyless Push Button Ignition ...................... 17
REMOTE START — IF EQUIPPED (GASOLINE) ...19
How To Use Remote Start ........................... 19
Remote Start Abort Message ...................... 20
To Enter Remote Start Mode ...................... 20
To Exit Remote Start Mode Without
Driving The Vehicle ..................................... 20 To Exit Remote Start Mode And
Drive The Vehicle ......................................... 20 Remote Start Comfort Systems —
If Equipped ................................................... 20 General Information .................................... 21
REMOTE START— IF EQUIPPED (DIESEL).......... 21
How To Use Remote Start ........................... 22
Remote Start Abort Message...................... 22
To Enter Remote Start Mode ...................... 22
To Exit Remote Start Mode Without
Driving The Vehicle ...................................... 23 To Exit Remote Start Mode And Drive
The Vehicle ................................................... 23 Remote Start Comfort Systems —
If Equipped ................................................... 23
SENTRY KEY.......................................................... 23
Key Programming ....................................... 24
Replacement Keys....................................... 24
General Information .................................... 24
VEHICLE SECURITY ALARM (IF EQUIPPED) ..... 25
To Arm The System ...................................... 25
To Disarm The System ................................ 25
Rearming Of The System............................. 26
Security System Manual Override .............. 26 DOORS ..................................................................26
Manual Door Locks ..................................... 26
Power Door Locks — If Equipped ............... 27
Power Side Steps — If Equipped ................ 27
Keyless Enter-N-Go — Passive Entry
(If Equipped) ................................................ 28 Automatic Door Locks — If Equipped ........ 30
Child-Protection Door Lock ........................ 30
DRIVER MEMORY SETTINGS — IF EQUIPPED ...31
Programming The Memory Feature............ 32
Linking And Unlinking The Remote
Keyless Entry Key Fob To Memory ............. 32 Memory Position Recall .............................. 32
SEATS .....................................................................33
Manual Front Seat Adjustment .................. 33
Manual Rear Seat Adjustment ................... 34
Power Driver Seat Adjustment —
If Equipped ................................................... 35 Heated Seats — If Equipped ....................... 37
Ventilated Seats — If Equipped................... 38

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4
GARAGE DOOR OPENER — IF EQUIPPED .........76 Before You Begin Programming
HomeLink® .................................................. 76 Canadian/Gate Operator Programming ..... 79
Using HomeLink® ........................................ 79
Security......................................................... 80
Troubleshooting Tips ................................... 80
General Information .................................... 80
INTERNAL EQUIPMENT ........................................81
Storage ......................................................... 81
Cupholders .................................................. 86
Electrical Power Outlets .............................. 86
Power Inverter — If Equipped ..................... 88
Wireless Charging Pad — If Equipped ........ 89
Overhead Sunglass Storage........................ 90
PICKUP BOX .........................................................90
Cargo Camera — If Equipped ...................... 91
RAMBOX — IF EQUIPPED .....................................92
RamBox Integrated Box Side
Storage Bins ................................................. 92 RamBox Safety Warning .............................. 94
Bed Divider — If Equipped ........................... 94
Bed Rail Tie-Down System — If Equipped .. 96
SLIDE-IN CAMPERS .............................................98
Camper Applications ................................... 98 EASY-OFF TAILGATE ........................................... 98
Disconnecting The Rear Camera And
Remote Keyless Entry ................................. 98 Removing The Tailgate ................................ 99
Locking Tailgate ........................................... 99
TRI-FOLD TONNEAU COVER — IF EQUIPPED ..100
Tri-Fold Tonneau Cover Removal.............. 100
Tri-Fold Tonneau Cover Installation.......... 102Tri-Fold Tonneau Cover Cleaning .............. 105
GETTING TO KNOW YOUR
INSTRUMENT PANEL
BASE / MIDLINE INSTRUMENT CLUSTER —
GAS ENGINE........................................................ 106
Base / Midline Instrument Cluster
Descriptions — Gas Engine ....................... 106
PREMIUM INSTRUMENT CLUSTER —
GAS ENGINE........................................................ 108
Premium Instrument Cluster
Descriptions — Gas Engine ....................... 108
BASE INSTRUMENT CLUSTER —
DIESEL ENGINE ................................................. 110
Base Instrument Cluster Descriptions —
Diesel Engine ............................................. 110 PREMIUM INSTRUMENT CLUSTER —
DIESEL ENGINE .................................................. 112
Premium Instrument Cluster
Descriptions — Diesel Engine ................... 112
INSTRUMENT CLUSTER DISPLAY ................... 113
Instrument Cluster Display Controls ........ 114
Oil Life Reset ............................................. 115
Display Menu Items ................................... 116
Diesel Messages And Warnings — 6.7L
Cummins Diesel Engine ............................ 125 Battery Saver On/Battery Saver Mode
Message — Electrical Load Reduction
Actions — If Equipped ............................... 129
WARNING LIGHTS AND MESSAGES ............... 130
Red Warning Lights ................................... 130
Yellow Warning Lights ............................... 133Yellow Indicator Lights .............................. 138
Green Indicator Lights ............................... 140White Indicator Lights ............................... 141Blue Indicator Lights ................................. 142
ONBOARD DIAGNOSTIC SYSTEM — OBD II ... 142
Onboard Diagnostic System
(OBD II) Cybersecurity ............................... 142
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ....................................................... 143

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10
MULTIMEDIA
UCONNECT SYSTEMS ....................................... 467
CYBERSECURITY ............................................... 467
UCONNECT SETTINGS ....................................... 468
Uconnect 3 Settings ..................................468Uconnect 4/4C/4C NAV Settings .............484
Uconnect 4C NAV With 12-inch
Display Settings .........................................505
SAFETY AND GENERAL INFORMATION .......... 524
Safety Guidelines .......................................524
UCONNECT 3 WITH 5-INCH DISPLAY .............. 525
Introduction ................................................525
Radio Mode ................................................526
Media Mode ...............................................529Phone Mode ...............................................531
STEERING WHEEL AUDIO CONTROLS —
IF EQUIPPED ...................................................... 537
Radio Operation .........................................538
Media Mode ...............................................538
IPOD®/USB/MP3 CONTROL — IF EQUIPPED .. 538

RADIO OPERATION AND MOBILE PHONES ...540
Regulatory And Safety Information........... 540
VOICE RECOGNITION QUICK TIPS ................... 541
Introducing Uconnect ................................ 541
Get Started ................................................. 541
Basic Voice Commands............................. 542Radio .......................................................... 543
Media.......................................................... 543
Phone ......................................................... 543Voice Text Reply — If Equipped ................. 543
Climate (4C/4C NAV) ................................. 544
Navigation (4C NAV) .................................. 544Siri® Eyes Free — If Equipped ................. 545
Using Do Not Disturb ................................ 545
Android Auto™ — If Equipped ................... 545
Apple CarPlay® — If Equipped ................. 546
General Information .................................. 546Additional Information ............................... 547
CUSTOMER ASSISTANCE
SUGGESTIONS FOR OBTAINING SERVICE
FOR YOUR VEHICLE .......................................... 548
Prepare For The Appointment .................. 548Prepare A List............................................. 548
Be Reasonable With Requests ................. 548
IF YOU NEED ASSISTANCE .............................. 548
FCA US LLC Customer Center ................... 549
FCA Canada Inc. Customer Center ........... 549
In Mexico Contact ...................................... 549
Puerto Rico And US Virgin Islands ............ 549
Customer Assistance For The Hearing
Or Speech Impaired (TDD/TTY) ................ 549 Service Contract ....................................... 549
WARRANTY INFORMATION .............................. 550
MOPAR PARTS................................................... 550
REPORTING SAFETY DEFECTS ........................ 550
In The 50 United States And
Washington, D.C. ....................................... 550 In Canada ................................................... 550
PUBLICATION ORDER FORMS ........................ 551

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GETTING TO KNOW YOUR VEHICLE15

The turn signal lights will flash to acknowledge the
unlock signal. The illuminated entry system will
also turn on.

NOTE:
All doors can be programmed to unlock on the
first push of the unlock button. Refer to “Ucon -
nect Settings” in “Multimedia” for further infor -
mation.
To Lock The Doors And Tailgate
Push and release the lock button on the key fob
to lock all doors, the tailgate, and the RamBox
(if equipped). The turn signal lights will flash and
the horn will chirp to acknowledge the signal.
Sound Horn With Remote Key Lock — If
Equipped
This feature will cause the horn to chirp when
the doors are locked with the key fob. This
feature can be turned on or turned off through
the Uconnect Settings. NOTE:
Pushing the lock button on the key fob while you
are in the vehicle will activate the vehicle secu
-
rity alarm system. Opening a door with the
vehicle security alarm system activated will
cause the alarm to sound. Push the unlock
button to deactivate the vehicle security alarm
system.
Refer to “Vehicle Security Alarm” in this chapter
for further information.
Using The Panic Alarm
To turn the Panic Alarm feature on or off, push
the Panic button on the key fob. When the Panic
Alarm is activated, the turn signals will flash, the
horn will pulse on and off, and the interior lights
will turn on.
The Panic Alarm will stay on for three minutes
unless you turn it off by either pushing the Panic
button a second time or drive the vehicle at a
speed of 15 mph (24 km/h) or greater. NOTE:
The interior lights will turn off if you place the
ignition in the ACC or ON/RUN position while
the Panic Alarm is activated. However, the
exterior lights and horn will remain on.
You may need to be less than 35 ft (11 m)
from the vehicle when using the key fob to
turn off the Panic Alarm due to the radio
frequency noises emitted by the system.
Replacing The Battery In The Key Fob With
Remote Control
The replacement battery model is one CR2450
battery.
NOTE:
Perchlorate Material — special handling may
apply. See www.dtsc.ca.gov/hazard
-
ouswaste/perchlorate for further informa -
tion.
Do not touch the battery terminals that are
on the back housing or the printed circuit
board.
2

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GETTING TO KNOW YOUR VEHICLE19
emergency key) of the key fob against the
START/STOP ignition button and push to
operate the ignition switch.

Back Up Starting Method

NOTE:
The key fob may not be able to be detected by
the vehicle’s Keyless Enter-N-Go system if it is
located next to a mobile phone, laptop or other
electronic device; these devices may block the
key fob’s wireless signal and prevent the
keyless-go system from starting the vehicle.
Refer to "Starting The Engine" in "Starting And
Operating" for further information.REMOTE START — IF EQUIPPED
(GASOLINE)
This system uses the key fob to start
the engine conveniently from outside
the vehicle while still maintaining
security. The system has a range of
approximately 300 ft (91 m).
NOTE:
Obstructions between the vehicle and the key
fob may reduce this range.
HOW TO USE REMOTE START
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 alarm not active
Malfunction Indicator Light is not illuminated
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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20GETTING TO KNOW YOUR VEHICLE
REMOTE START ABORT MESSAGE
The following messages will display in the
instrument cluster display if the vehicle fails to
remote start or exits remote start prematurely:
Remote Start Cancelled — Door Open
Remote Start Cancelled — Hood Open
Remote Start Cancelled — Fuel Low
Remote Start Cancelled — System Fault
Remote Start Disabled — Start Vehicle to
Reset
The instrument cluster display message stays
active until the ignition is placed in the ON/RUN
position.
TO ENTER REMOTE START MODE
Push and release the Remote Start
button on the key fob twice within five
seconds. The parking lights will flash,
vehicle doors will lock, and the horn
will chirp twice (if programmed). Once the
vehicle has started, the engine will run for
15 minutes. NOTE:
If your power door locks were unlocked,
Remote Start will automatically lock the
doors.
If an engine fault is present or fuel level is
low, the vehicle will start and then shut down
in 10 seconds.
The park lamps 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 engine can be started two consecutive
times (two 15 minute cycles) with the key
fob. However, the ignition must be placed in
the ON/RUN position before you can repeat
the start sequence for a third cycle.
TO EXIT REMOTE START MODE
W
ITHOUT DRIVING THE VEHICLE
Push and release the remote start button one
time or allow the engine to run for the entire
15 minute cycle. NOTE:
To avoid unintentional shutdowns, the system
will disable for two seconds after receiving a
valid Remote Start request
TO EXIT REMOTE START MODE AND
D
RIVE THE VEHICLE
Before the end of the 15 minute cycle, push and
release the unlock button on the key fob to
unlock the doors and disarm the vehicle
security alarm system (if equipped). Then, prior
to the end of the 15 minute cycle, place the
ignition in the ON/RUN position.
REMOTE START COMFORT SYSTEMS —
I
F EQUIPPED
When remote start is activated, the heated
steering wheel, and driver heated seat features
will automatically turn on in cold weather. In
warm weather, the driver vented seat feature
will automatically turn on when the remote start
is activated. These features will stay on through
the duration of remote start or until the ignition
switch is placed in the ON/RUN position.

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GETTING TO KNOW YOUR VEHICLE21
NOTE:
The Remote Start Comfort system can be acti -
vated and deactivated through the Uconnect
system under “Auto-On Comfort And Remote
Start”. Refer to “Uconnect Settings” in “Multi -
media” for further information on Remote Start
Comfort System operation.
GENERAL INFORMATION
The following regulatory statement applies to all
Radio Frequency (RF) devices equipped in this
vehicle:
This device complies with Part 15 of the FCC
Rules and with Innovation, Science and
Economic Development Canada license-exempt
RSS standard(s). Operation is subject to the
following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received, including interference that may
cause undesired operation. Le présent appareil est conforme aux CNR
d`Innovation, Science and Economic
Development applicables aux appareils radio
exempts de licence. L'exploitation est autorisée
aux deux conditions suivantes:

1. l'appareil ne doit pas produire de
brouillage, et

2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compro -
mettre le fonctionnement.
La operación de este equipo está sujeta a las
siguientes dos condiciones:

1. es posible que este equipo o dispositivo no cause interferencia perjudicial y

2. este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que
pueda causar su operación no deseada.
NOTE:
Changes or modifications not expressly
approved by the party responsible for compli -
ance could void the user’s authority to operate
the equipment.
REMOTE START— IF EQUIPPED (DIESEL)
This system uses the key fob to start
the engine conveniently from outside
the vehicle while still maintaining
security. The system has a range of
approximately 300 ft (91 m).
NOTE:
Obstructions between the vehicle and the
key fob may reduce this range.
The Remote Start system will wait for the
Wait To Start indicator light to extinguish
before cranking the engine. This allows time
for the intake heater to preheat the incoming
air, and is normal operation in cold weather.
Refer to “Wait To Start Light”, located in
“Warning Lights And Messages” in “Getting
To Know Your Instrument Panel” for more
information.
2

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22GETTING TO KNOW YOUR VEHICLE
HOW TO USE REMOTE START
All of the following conditions must be met
before the engine will remote start:
Transmission 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
Water In Fuel Indicator Light is not illumi -
nated
Wait To Start Light Indicator Light is not illu -
minated
Malfunction Indicator Light is not illuminated
REMOTE START ABORT MESSAGE
The following messages will display in the
instrument cluster display if the vehicle fails to
remote start or exits remote start prematurely:
Remote Start Aborted — Door Open
Remote Start Aborted — Hood Open
Remote Start Aborted — Fuel Low
Remote Start Aborted — System Fault
The instrument cluster display message is
stored until the ignition is placed in the ON/RUN
position.
TO ENTER REMOTE START MODE
Push and release the Remote Start button on
the key fob twice, within five seconds. The
parking lights will flash and the horn will chirp
twice (if programmed). In cold ambient
temperature conditions, the diesel vehicle may
delay crank up to 30 seconds for the Intake Air
Heater. Once the vehicle has started, the
engine will run for 15 minutes.
NOTE:
Crank may be delayed up to 75 seconds for
intake air heater operation at high altitudes,
and/or extreme cold.
The park lamps 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.

Additional features, such as windshield
wipers, will also not be available while the
vehicle is in the Remote Start mode.

The engine can be started two consecutive
times (two 15 minute cycles) with the key fob.
However, the ignition switch must be placed in
the ON/RUN position before you can repeat
the start sequence for a third cycle.

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.

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