2020 Ram 3500 Chassis Cab child restraint

2
INTRODUCTION
HOW TO USE THIS MANUAL ...............................11
Essential Information .................................. 11
Symbols ........................................................ 11
WARNINGS AND CAUTIONS ...............................11
VAN CONVERSIONS/CAMPERS .........................11
VEHICLE MODIFICATIONS/ALTERATIONS .......11
GETTING TO KNOW YOUR VEHICLE
VEHICLE USER GUIDE — IF EQUIPPED ...............12
KEYS ......................................................................13
Key Fob......................................................... 13
IGNITION SWITCH ...............................................17
Keyless Push Button Ignition ...................... 17
REMOTE START — IF EQUIPPED (GASOLINE) ...18
How To Use Remote Start ........................... 18
Remote Start Abort Message ...................... 19
To Enter Remote Start Mode ...................... 19
To Exit Remote Start Mode Without
Driving
The Vehicle .................................................. 19 To Exit Remote Start Mode And Drive The
Vehicle .......................................................... 20 Remote Start Comfort Systems —
If Equipped ................................................... 20 General Information .................................... 20 REMOTE START — IF EQUIPPED (DIESEL)......... 20
How To Use Remote Start ........................... 21
Remote Start Abort Message...................... 21
To Enter Remote Start Mode ...................... 21
To Exit Remote Start Mode Without
Driving The Vehicle ...................................... 22 To Exit Remote Start Mode And Drive The
Vehicle .......................................................... 22 Remote Start Comfort Systems —
If Equipped ................................................... 22
SENTRY KEY.......................................................... 22
Key Programming ....................................... 23
Replacement Keys ..................................... 23
General Information .................................... 23
VEHICLE SECURITY ALARM .............................. 24
To Arm The System ...................................... 24
To Disarm The System ................................ 24
Rearming Of The System............................. 25
Security System Manual Override .............. 25
DOORS .................................................................. 25
Manual Door Locks...................................... 25
Power Door Locks — If Equipped ............... 26
Keyless Enter-N-Go — Passive Entry .......... 26
Automatic Door Locks — If Equipped ....... 29
Child-Protection Door Lock ........................ 29
SEATS ................................................................ 30
Manual Front Seat Adjustment................... 30
Power Driver Seat Adjustment —
If Equipped ................................................... 31 Driver Memory Seats — If Equipped .......... 32
Heated Seats — If Equipped ....................... 34
Ventilated Seats — If Equipped................... 35 HEAD RESTRAINTS ..........................................36
Front Head Restraints ................................. 36
Rear Head Restraint Adjustment ............... 37
Rear Head Restraint Removal .................... 37
STEERING WHEEL .............................................38
Tilt Steering Column .................................. 38
Heated Steering Wheel — If Equipped ...... 38
DRIVER ADJUSTABLE PEDALS —
IF EQUIPPED .........................................................39
MIRRORS ..............................................................40
Inside Day/Night Mirror — If Equipped ...... 40
Automatic Dimming Mirror —
If Equipped .................................................. 40 Automatic Dimming Mirror With Rear View
Camera Display — If Equipped ................... 40 Outside Mirrors ........................................... 41
Driver's Outside Automatic Dimming
Mirror — If Equipped .................................... 41 Power Mirrors — If Equipped ...................... 41
Power Convex Mirror Switch —
If Equipped ................................................... 42 Trailer Towing Mirrors.................................. 42
Heated Mirrors — If Equipped .................... 43
Tilt Side Mirrors In Reverse —
If Equipped ................................................... 43 Outside Mirrors Folding Feature ................. 43
Illuminated Vanity Mirror —
If Equipped ................................................... 44

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ONBOARD DIAGNOSTIC SYSTEM — OBD II ....... 118
Onboard Diagnostic System (OBD II)
Cybersecurity..............................................118
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS ...................................................... 119
SAFETY
SAFETY FEATURES ............................................ 120
Anti-Lock Brake System (ABS) ................. 120
Electronic Brake Control (EBC) System ...121
AUXILIARY DRIVING SYSTEMS ........................ 129
Forward Collision Warning (FCW) With
Mitigation — If Equipped............................129 Tire Pressure Monitoring System
(TPMS) .....................................................132
OCCUPANT RESTRAINT SYSTEMS .................. 141
Occupant Restraint Systems Features ....141
Important Safety Precautions ...................141Seat Belt Systems ..................................... 142Supplemental Restraint Systems (SRS) ...151Child Restraints ........................................160
Transporting Pets ....................................179
SAFETY TIPS .................................................... 180
Transporting Passengers ..........................180
Exhaust Gas ........................................... 180
Safety Checks You Should Make Inside
The Vehicle ................................................180 Periodic Safety Checks You Should Make
Outside The Vehicle ...................................182
STARTING AND OPERATING
STARTING THE ENGINE — GAS ENGINE .........183
Automatic Transmission............................ 183
Tip Start Feature ....................................... 183Keyless Enter-N-Go — Ignition ................... 184
Normal Starting Using ENGINE START/
STOP Button ............................................ 184 Cold Weather Operation
(Below –22°F Or −30°C) ......................... 187 After Starting .............................................. 187
STARTING THE ENGINE — DIESEL ENGINE .... 187
Automatic Transmission............................ 187
Keyless Enter-N-Go — Ignition ................... 188
Extreme Cold Weather .............................. 190
Normal Starting Procedure — Engine Manifold
Air Temperature Above 66°F (19°C) ....... 191 Starting Procedure — Engine Manifold Air
Temperature 0°F To 66°F
(–18°C to 19°C) ....................................... 191 Starting Procedure — Engine Manifold Air
Temperature Below 0°F (-18°C) .............. 192 Starting Fluids ............................................ 193 NORMAL OPERATION — DIESEL ENGINE ....... 194
Cold Weather Precautions ........................ 194
Engine Idling ............................................. 197
Noise .......................................................... 198
Stopping The Engine ................................. 198Idle Shutdown ............................................ 199
Programmable Maximum Vehicle Speed ..... 199

Operating Precautions .............................. 200
Cooling System Tips .................................. 200
Diesel Particulate Filter (DPF) Manual
Regeneration - If Equipped ....................... 201
ENGINE BLOCK HEATER — IF EQUIPPED ........ 201
ENGINE BREAK-IN RECOMMENDATIONS —
GAS ENGINE ...................................................... 202
ENGINE BREAK-IN RECOMMENDATIONS —
DIESEL ENGINE .................................................. 202
DIESEL EXHAUST BRAKE
(ENGINE BRAKING) ........................................... 203
PARKING BRAKE .............................................. 204
AUTOMATIC TRANSMISSION ........................... 205 Ignition Park Interlock ............................... 206Brake/Transmission Shift Interlock
System ....................................................... 206 Six–Speed Automatic Transmission —
If Equipped ................................................ 207 Eight-Speed Automatic Transmission —
If Equipped ................................................. 213
AUXILIARY SWITCHES — IF EQUIPPED ........... 218

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SAFETY141
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 cual -
quier 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.
OCCUPANT RESTRAINT SYSTEMS
Some of the most important safety features in
your vehicle are the restraint systems:
Occupant Restraint Systems Features
Seat Belt Systems
Supplemental Restraint Systems (SRS) Air
Bags
Child Restraints Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask an authorized
dealer.
Important Safety Precautions
Please pay close attention to the information in
this section. It tells you how to use your restraint
system properly, to keep you and your passen
-
gers as safe as possible.
Here are some simple steps you can take to
minimize the risk of harm from a deploying air
bag:

1. Children 12 years old and under should always ride buckled up in the rear seat of a
vehicle with a rear seat.

2. A child who is not big enough to wear the vehicle seat belt properly (Refer to “Child
Restraints” in this section for further infor -
mation) must be secured in the appropriate
child restraint or belt-positioning booster
seat in a rear seating position. 3. If a child from 2 to 12 years old (not in a
rear-facing child restraint) must ride in the
front passenger seat, move the seat as far
back as possible and use the proper child
restraint (Refer to “Child Restraints” in this
section for further information).
4. Never allow children to slide the shoulder belt behind them or under their arm.
5. You should read the instructions provided with your child restraint to make sure that
you are using it properly.
6. All occupants should always wear their lap and shoulder belts properly.
7. The driver and front passenger seats should be moved back as far as practical to allow
the front air bags room to inflate.
8. Do not lean against the door or window. If your vehicle has side air bags, and deploy -
ment occurs, the side air bags will inflate
forcefully into the space between occupants
and the door and occupants could be
injured.
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142SAFETY
9. If the air bag system in this vehicle needs to
be modified to accommodate a disabled
person, refer to the “Customer Assistance”
section for customer service contact infor -
mation.
Seat Belt Systems
Buckle up even though you are an excellent
driver, even on short trips. Someone on the road
may be a poor driver and could cause a collision
that includes you. This can happen far away
from home or on your own street. Research has shown that seat belts save lives,
and they can reduce the seriousness of injuries
in a collision. Some of the worst injuries happen
when people are thrown from the vehicle. Seat
belts reduce the possibility of ejection and the
risk of injury caused by striking the inside of the
vehicle. Everyone in a motor vehicle should be
belted at all times.
Enhanced Seat Belt Use Reminder System
(BeltAlert)
Driver And Passenger BeltAlert — If Equipped
BeltAlert is a feature intended to remind the
driver and outboard front seat passenger (if
equipped with outboard front passenger seat
BeltAlert) to buckle their seat belts. The
BeltAlert feature is active whenever the ignition
switch is in the START or ON/RUN position.
Initial Indication
If the driver is unbuckled when the ignition
switch is first in the START or ON/RUN position,
a chime will signal for a few seconds. If the
driver or outboard front seat passenger (if
equipped with outboard front passenger seat
BeltAlert) is unbuckled when the ignition switch
is first in the START or ON/RUN position the Seat Belt Reminder Light will turn on and
remain on until both outboard front seat belts
are buckled. The outboard front passenger seat
BeltAlert is not active when an outboard front
passenger seat is unoccupied.
BeltAlert Warning Sequence
The BeltAlert warning sequence is activated
when the vehicle is moving above a specified
vehicle speed range and the driver or outboard
front seat passenger is unbuckled (if equipped
with outboard front passenger seat BeltAlert)
(the outboard front passenger seat BeltAlert is
not active when the outboard front passenger
seat is unoccupied). The BeltAlert warning
sequence starts by blinking the Seat Belt
Reminder Light and sounding an intermittent
chime. Once the BeltAlert warning sequence
has completed, the Seat Belt Reminder Light
will remain on until the seat belts are buckled.
The BeltAlert warning sequence may repeat
based on vehicle speed until the driver and
occupied outboard front seat passenger seat
belts are buckled. The driver should instruct all
occupants to buckle their seat belts.
WARNING!
Never place a rear-facing child restraint in
front of an air bag. A deploying passenger
front air bag can cause death or serious
injury to a child 12 years or younger,
including a child in a rear-facing child
restraint.
Never install a rear-facing child restraint in
the front seat of a vehicle. Only use a
rear-facing child restraint in the rear seat. If
the vehicle does not have a rear seat, do
not transport a rear-facing child restraint in
that vehicle.

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SAFETY149
Seat Belts And Pregnant Women

Pregnant Women And Seat Belts

Seat belts must be worn by all occupants
including pregnant women: the risk of injury in
the event of an accident is reduced for the
mother and the unborn child if they are wearing
a seat belt.
Position the lap belt snug and low below the
abdomen and across the strong bones of the
hips. Place the shoulder belt across the chest
and away from the neck. Never place the
shoulder belt behind the back or under the arm.
Seat Belt Pretensioner — If Equipped
3500 Models Only
The front outboard seat belt system is equipped
with pretensioning devices that are designed to
remove slack from the seat belt in the event of a collision. These devices may improve the
performance of the seat belt by removing slack
from the seat belt early in a collision. Preten
-
sioners work for all size occupants, including
those in child restraints.
NOTE:
These devices are not a substitute for proper
seat belt placement by the occupant. The seat
belt still must be worn snugly and positioned
properly.
The pretensioners are triggered by the Occu -
pant Restraint Controller (ORC). Like the air
bags, the pretensioners are single use items. A
deployed pretensioner or a deployed air bag
must be replaced immediately.
Energy Management Feature — If Equipped
3500 Models Only
The front outboard seat belt system is equipped
with an Energy Management feature that may
help further reduce the risk of injury in the event
of a collision. The seat belt system has a
retractor assembly that is designed to release
webbing in a controlled manner.
Switchable Automatic Locking Retractors
(ALR) — If Equipped
The seat belts in the passenger seating posi -
tions may be equipped with a Switchable Auto -
matic Locking Retractor (ALR) which is used to
secure a child restraint system. For additional
information, refer to “Installing Child Restraints
Using The Vehicle Seat Belt” under the “Child
Restraints” section of this manual. The figure
below illustrates the locking feature for each
seating position.

Regular Cab Au tomatic Locking Retractor (A LR) Locations

ALR — Switchable Automatic Locking Retractor
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150SAFETY

Crew Cab Automatic Locking Retractor ( ALR)
Locations

If the passenger seating position is equipped
with an ALR and is being used for normal usage,
only pull the seat belt webbing out far enough to
comfortably wrap around the occupant’s
mid-section so as to not activate the ALR. If the
ALR is activated, you will hear a clicking sound
as the seat belt retracts. Allow the webbing to
retract completely in this case and then care -
fully pull out only the amount of webbing neces -
sary to comfortably wrap around the occupant’s
mid-section. Slide the latch plate into the buckle
until you hear a "click."
In Automatic Locking Mode, the shoulder belt is
automatically pre-locked. The seat belt will still
retract to remove any slack in the shoulder belt. Use the Automatic Locking Mode anytime a
child restraint is installed in a seating position
that has a seat belt with this feature. Children
12 years old and under should always be prop
-
erly restrained in the rear seat of a vehicle with
a rear seat.
How To Engage The Automatic Locking Mode

1. Buckle the combination lap and shoulder belt.

2. Grasp the shoulder portion and pull down -
ward until the entire seat belt is extracted. 3. Allow the seat belt to retract. As the seat
belt retracts, you will hear a clicking sound.
This indicates the seat belt is now in the
Automatic Locking Mode.
How To Disengage The Automatic Locking Mode
Unbuckle the combination lap/shoulder belt
and allow it to retract completely to disengage
the Automatic Locking Mode and activate the
vehicle sensitive (emergency) locking mode.
ALR — Switchable Automatic Locking Retractor
WARNING!
Never place a rear-facing child restraint in
front of an air bag. A deploying passenger
front air bag can cause death or serious
injury to a child 12 years or younger,
including a child in a rear-facing child
restraint.
Never install a rear-facing child restraint in
the front seat of a vehicle. Only use a
rear-facing child restraint in the rear seat. If
the vehicle does not have a rear seat, do
not transport a rear-facing child restraint in
that vehicle.
WARNING!
The seat belt assembly must be replaced if
the switchable Automatic Locking Retractor
(ALR) feature or any other seat belt function
is not working properly when checked
according to the procedures in the Service
Manual.
Failure to replace the seat belt assembly
could increase the risk of injury in colli -
sions.
Do not use the Automatic Locking Mode to
restrain occupants who are wearing the
seat belt or children who are using booster
seats. The locked mode is only used to
install rear-facing or forward-facing child
restraints that have a harness for
restraining the child.

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152SAFETY
(Continued)
Front Air Bags
This vehicle has front air bags and lap/shoulder
belts for both the driver and front passenger.
The front air bags are a supplement to the seat
belt restraint systems. The driver front air bag is
mounted in the center of the steering wheel.
The passenger front air bag is mounted in the
instrument panel, above the glove compart-
ment. The words “SRS AIRBAG” or “AIRBAG” are
embossed on the air bag covers.
Front Air Bag/Knee Bolster Locations

Driver And Passenger Front Air Bag Features
The Advanced Front Air Bag system has multi
-
stage driver and front passenger air bags. This
system provides output appropriate to the
severity and type of collision as determined by
the Occupant Restraint Controller (ORC), which
may receive information from the front impact
sensors (if equipped) or other system compo -
nents.
The first stage inflator is triggered immediately
during an impact that requires air bag deploy -
ment. A low energy output is used in less severe
collisions. A higher energy output is used for
more severe collisions.
WARNING!
Ignoring the Air Bag Warning Light in your
instrument panel could mean you won’t have
the air bag system to protect you in a
collision. If the light does not come on as a
bulb check when the ignition is first turned
on, stays on after you start the vehicle, or if it
comes on as you drive, have an authorized
dealer service the air bag system
immediately.
1 — Driver And Passenger Front Air Bags
2 — Driver And Passenger Knee Impact Bolsters
WARNING!
Being too close to the steering wheel or
instrument panel during front air bag
deployment could cause serious injury,
including death. Air bags need room to
inflate. Sit back, comfortably extending
your arms to reach the steering wheel or
instrument panel.
Never place a rear-facing child restraint in
front of an air bag. A deploying passenger
front air bag can cause death or serious
injury to a child 12 years or younger,
including a child in a rear-facing child
restraint.
Never install a rear-facing child restraint in
the front seat of a vehicle. Only use a
rear-facing child restraint in the rear seat. If
the vehicle does not have a rear seat, do
not transport a rear-facing child restraint in
that vehicle.
WARNING! (Continued)

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SAFETY155
Supplemental Side Air Bag Inflatable Curtains
(SABICs) are located above the side windows.
The trim covering the SABICs is labeled “SRS
AIRBAG” or “AIRBAG.”

Supplemental Side Air Bag Inflatable Curtain (SABIC) Label Location

SABICs (if equipped with SABICs) may help
reduce the risk of head and other injuries to
front and rear seat outboard occupants in
certain side impacts, in addition to the injury
reduction potential provided by the seat belts
and body structure.
The SABIC deploys downward, covering the side
windows. An inflating SABIC pushes the outside
edge of the headliner out of the way and covers
the window. The SABICs inflate with enough
force to injure occupants if they are not belted
and seated properly, or if items are positioned in the area where the SABICs inflate. Children
are at an even greater risk of injury from a
deploying air bag.
The SABICs (if equipped with SABICs) may help
reduce the risk of partial or complete ejection of
vehicle occupants through side windows in
certain side impact events.
Side Impacts
The Side Air Bags are designed to activate in
certain side impacts. The Occupant Restraint
Controller (ORC) determines whether the
deployment of the Side Air Bags in a particular
impact event is appropriate, based on the
severity and type of collision. The side impact
sensors aid the ORC in determining the appro
-
priate response to impact events. The system is
calibrated to deploy the Side Air Bags on the
impact side of the vehicle during impacts that
require Side Air Bag occupant protection. In side
impacts, the Side Air Bags deploy inde -
pendently; a left side impact deploys the left
Side Air Bags only and a right-side impact
deploys the right Side Air Bags only. Vehicle
damage by itself is not a good indicator of
whether or not Side Air Bags should have
deployed.
The Side Air Bags will not deploy in all side colli -
sions, including some collisions at certain
angles, or some side collisions that do not
impact the area of the passenger compartment.
The Side Air Bags may deploy during angled or
offset frontal collisions where the front air bags
deploy.
WARNING!
Do not mount equipment, or stack luggage
or other cargo up high enough to block the
deployment of the SABICs. The trim
covering above the side windows where the
SABIC and its deployment path are located
should remain free from any obstructions.
In order for the SABICs to work as intended,
do not install any accessory items in your
vehicle which could alter the roof. Do not
add an aftermarket sunroof to your vehicle.
Do not add roof racks that require perma -
nent attachments (bolts or screws) for
installation on the vehicle roof. Do not drill
into the roof of the vehicle for any reason.
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