2021 RAM CHASSIS CAB lock

SAFETY301
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
positions may be equipped with a Switchable
Automatic Locking Retractor (ALR) which is
used to secure a child restraint system
Úpage 322.
The figure below illustrates the locking feature
for each seating position.
Regular Cab Automatic Locking Retractor (ALR)
Locations
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 carefully pull out
only the amount of webbing necessary 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
properly restrained in the rear seat of a vehicle
with a rear seat.ALR — Switchable Automatic Locking Retractor
ALR — Switchable Automatic Locking Retractor
6

21_DPF_OM_EN_USC_t.book Page 301

302SAFETY
How To Engage The Automatic Locking Mode

1. Buckle the combination lap and shoulder belt.

2. Grab the shoulder portion and pull
downward 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.
SUPPLEMENTAL RESTRAINT SYSTEMS
(SRS)
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.

The air bag system must be ready to protect
you in a collision. The Occupant Restraint
Controller (ORC) monitors the internal circuits
and interconnecting wiring associated with the
electrical Air Bag System Components. Your
vehicle may be equipped with the following Air
Bag System Components:

Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Knee Impact Bolsters
Driver and Front Passenger Air Bags
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 collisions.

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.

21_DPF_OM_EN_USC_t.book Page 302

SAFETY307
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 appropriate 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 independently; 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
collisions, 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.
Side Air Bags are a supplement to the seat belt
restraint system. Side Air Bags deploy in less
time than it takes to blink your eyes.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.
6

21_DPF_OM_EN_USC_t.book Page 307

310SAFETY
Enhanced Accident Response System
In the event of an impact, if the communication
network remains intact, and the power remains
intact, depending on the nature of the event,
the ORC will determine whether to have the
Enhanced Accident Response System perform
the following functions:
Cut off fuel to the engine (if equipped).
Cut off battery power to the electric motor
(if equipped).
Flash hazard lights as long as the battery has
power.
Turn on the interior lights, which remain on
as long as the battery has power or for
15 minutes from the intervention of the
Enhanced Accident Response System.
Unlock the power door locks.
Your vehicle may also be designed to perform
any of these other functions in response to the
Enhanced Accident Response System:
Turn off the Fuel Filter Heater, Turn off the
HVAC Blower Motor, Close the HVAC Circula -
tion Door
Cut off battery power to the:
Engine
Electric Motor (if equipped)
Electric power steering
Brake booster
Electric park brake
Automatic transmission gear selector
Horn
Front wiper
Headlamp washer pump
NOTE:

After an accident, remember to place the ignition
to the STOP (OFF/LOCK) position and remove the
key from the ignition switch to avoid draining the
battery. Carefully check the vehicle for fuel leaks
in the engine compartment and on the ground
near the engine compartment and fuel tank
before resetting the system and starting the
engine. If there are no fuel leaks or damage to
the vehicle electrical devices (e.g. headlights)
after an accident, reset the system by following
the procedure described below. If you have any
doubt, contact an authorized dealer.

Enhanced Accident Response System
Reset Procedure
In order to reset the Enhanced Accident
Response System functions after an event, the
ignition switch must be changed from ignition
START or ON/RUN to ignition OFF. Carefully
check the vehicle for fuel leaks in the engine
compartment and on the ground near the
engine compartment and fuel tank before
resetting the system and starting the engine.
After an accident, if the vehicle will not start
after performing the reset procedure, the
vehicle must be towed to an authorized dealer
to be inspected and to have the Enhanced
Accident Response System reset.

21_DPF_OM_EN_USC_t.book Page 310

SAFETY321

Forward-facing child restraints and some
rear-facing child restraints will also be equipped
with a tether strap. The tether strap will have a
hook at the end to attach to the top tether
anchorage and a way to tighten the strap after
it is attached to the anchorage.

Center Seat LATCH
Regular Cab or Crew Cab Full Bench Rear Seat:
No Lower Center LATCH Anchorages Available Crew Cab Split Bench Rear Seat: Center LATCH
Anchorages Available
If a child restraint installed in the center
position blocks the seat belt webbing or buckle
for the outboard position, do not use that
outboard position. If a child seat in the center
position blocks the outboard LATCH anchors or
seat belt, do not install a child seat in that
outboard position.
Always follow the directions of the child
restraint manufacturer when installing your
child restraint. Not all child restraint systems
will be installed as described here.
To Install A LATCH-Compatible Child
Restraint
If the selected seating position has a
Switchable Automatic Locking Retractor (ALR)
seat belt, stow the seat belt, following the instructions below. See Ú
page 322 to check
what type of seat belt each seating position has.

1. Loosen the adjusters on the lower straps and on the tether strap of the child seat so
that you can more easily attach the hooks
or connectors to the vehicle anchorages.

2. Place the child seat between the lower anchorages for that seating position. If the
second row seat can be reclined, you may
recline the seat and/or raise the head
restraint (if adjustable) to get a better fit.
If the rear seat can be moved forward and
rearward in the vehicle, you may wish to
move it to its rear-most position to make
room for the child seat. You may also move
the front seat forward to allow more room
for the child seat.
3. Attach the lower hooks or connectors of the child restraint to the lower anchorages in
the selected seating position.
4. If the child restraint has a tether strap, connect it to the top tether anchorage.
See Ú page 327 for directions to attach a
tether anchor.
WARNING!
Do not install a child restraint in the center
position using the LATCH system. This posi -
tion is not approved for installing child
seats using the LATCH attachments.
You must use the seat belt and tether
anchor to install a child seat in the center
seating position.
Never use the same lower anchorage to
attach more than one child restraint.
For typical installation instructions, see
Ú page 321.
WARNING!

Never use the same lower anchorage to attach
more than one child restraint. For typical
installation instructions, see
Ú
page 321.

6

21_DPF_OM_EN_USC_t.book Page 321

322SAFETY
5. Tighten all of the straps as you push the
child restraint rearward and downward into
the seat. Remove slack in the straps
according to the child restraint
manufacturer’s instructions.
6. Test that the child restraint is installed tightly by pulling back and forth on the child
seat at the belt path. It should not move
more than 1 inch (25.4 mm) in any
direction.
How To Stow An Unused Switchable-ALR
(ALR) Seat Belt:
When using the LATCH attaching system to
install a child restraint, stow all ALR seat belts
that are not being used by other occupants or
being used to secure child restraints. An unused
belt could injure a child if they play with it and
accidentally lock the seat belt retractor. Before
installing a child restraint using the LATCH
system, buckle the seat belt behind the child
restraint and out of the child’s reach. If the buckled seat belt interferes with the child
restraint installation, instead of buckling it
behind the child restraint, route the seat belt
through the child restraint belt path and then
buckle it. Do not lock the seat belt. Remind all
children in the vehicle that the seat belts are not
toys and that they should not play with them.
Installing Child Restraints Using The
Vehicle Seat Belt
Child restraint systems are designed to be
secured in vehicle seats by lap belts or the lap
belt portion of a lap/shoulder belt.
WARNING!
Improper installation of a child restraint to
the LATCH anchorages can lead to failure of
the restraint. The child could be badly
injured or killed. Follow the child restraint
manufacturer’s directions exactly when
installing an infant or child restraint.
Child restraint anchorages are designed to
withstand only those loads imposed by
correctly-fitted child restraints. Under no
circumstances are they to be used for adult
seat belts, harnesses, or for attaching other
items or equipment to the vehicle.
WARNING!
Improper installation or failure to properly
secure a child restraint can lead to failure
of the restraint. The child could be badly
injured or killed.
Follow the child restraint manufacturer’s
directions exactly when installing an infant
or child restraint.

21_DPF_OM_EN_USC_t.book Page 322

SAFETY323
The seat belts in the passenger seating
positions are equipped with either a Switchable
Automatic Locking Retractor (ALR) or a cinching
latch plate or both. Both types of seat belts are
designed to keep the lap portion of the seat belt
tight around the child restraint so that it is not
necessary to use a locking clip. The ALR
retractor can be “switched” into a locked mode
by pulling all of the webbing out of the retractor
and then letting the webbing retract back into
the retractor. If it is locked, the ALR will make a
clicking noise while the webbing is pulled back
into the retractor. The cinching latch plate is
designed to hold the lap portion of the seat belt
tight when webbing is pulled tight and straight
through a child restraint’s belt path.
See the “Automatic Locking Mode” description
Úpage 301 for additional information on ALR.
Please see the table below and the following
sections for more information.Lap/Shoulder Belt Systems For Installing
Child Restraints In This Vehicle

Regular Cab Automatic Locking Retractor (ALR) Locations Crew Cab Automatic Locking Retractor (ALR)
Locations

ALR — Switchable Automatic Locking Retractor
Top Tether Anchorage Symbol
Cinching Latch plate — Cinching Latch plate
ALR — Switchable Automatic Locking Retractor Top Tether Anchorage Symbol
6

21_DPF_OM_EN_USC_t.book Page 323

SAFETY325
Installing A Child Restraint With A
Switchable Automatic Locking Retractor
(ALR):
Child restraint systems are designed to be
secured in vehicle seats by lap belts or the lap
belt portion of a lap/shoulder belt.

1. For Crew Cab Models

Place the child seat in the center of the
seating position. If the second row seat can
be reclined, you may recline the seat and/or
raise the head restraint (if adjustable) to get
a better fit. If the rear seat can be moved
forward and rearward in the vehicle, you
may wish to move it to its rear-most position
to make room for the child seat. You may
also move the front seat forward to allow
more room for the child seat. For Regular Cab Models
Place the child seat in the center of the
seating position. Move the vehicle seat as
far rearward as possible to keep the child as
far from the passenger air bag as possible.
2. Pull enough of the seat belt webbing from the retractor to pass it through the belt path
of the child restraint. Do not twist the belt
webbing in the belt path.
3. Slide the latch plate into the buckle until you hear a “click.”
4. Pull on the webbing to make the lap portion tight against the child seat.
5. To lock the seat belt, pull down on the shoulder part of the belt until you have
pulled all the seat belt webbing out of the
retractor. Then, allow the webbing to retract
back into the retractor. As the webbing
retracts, you will hear a clicking sound.
This means the seat belt is now in the
Automatic Locking mode. 6. Try to pull the webbing out of the retractor.
If it is locked, you should not be able to pull
out any webbing. If the retractor is not

locked, repeat step 5.
7. Finally, pull up on any excess webbing to tighten the lap portion around the child
restraint while you push the child restraint
rearward and downward into the vehicle
seat.
8. If the child restraint has a top tether strap and the seating position has a top tether
anchorage, connect the tether strap to
the anchorage and tighten the tether strap.
See Ú page 327 for directions to attach a
tether anchor.
9. Test that the child restraint is installed tightly by pulling back and forth on the child
seat at the belt path. It should not move
more than 1 inch (25.4 mm) in any
direction.
Any seat belt system will loosen with time, so
check the belt occasionally, and pull it tight if
necessary.
WARNING!
Improper installation or failure to properly
secure a child restraint can lead to failure
of the restraint. The child could be badly
injured or killed.
Follow the child restraint manufacturer’s
directions exactly when installing an infant
or child restraint.6

21_DPF_OM_EN_USC_t.book Page 325