2018 Ram 4500 Chassis Cab sensor

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.
WARNING!
• Do not mount equipment, or stack lug-gage or other cargo up high enough to
block the deployment of the SABICs.
The trim covering above the side win-
dows where the SABIC and its deploy-
ment path are located should remain
free from any obstructions.
• In order for the SABICs to work as in-
tended, do not install any accessory
items in your vehicle which could alter
WARNING!
the roof. Do not add an aftermarket
sunroof to your vehicle. Do not add roof
racks that require permanent attach-
ments (bolts or screws) for installation
on the vehicle roof. Do not drill into the
roof of the vehicle for any reason.
Side Impacts
The Side Air Bags are designed to activate in
certain side impacts. The Occupant Restraint
Controller (ORC) determines whether the de-
ployment 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 ap-
propriate 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 de-
ploys 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 cer-
tain angles, or some side collisions that do
not impact the area of the passenger com-
partment. 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!
• Occupants, including children, who are
up against or very close to Side Air Bags
can be seriously injured or killed. Occu-
pants, including children, should never
lean on or sleep against the door, side
windows, or area where the side air bags
inflate, even if they are in an infant or
child restraint.
•
Seat belts (and child restraints where ap-
propriate) are necessary for your protection
SAFETY
92

• Front and Side Impact Sensors — IfEquipped
• Seat Belt Pretensioners — If Equipped
If A Deployment Occurs
The front air bags are designed to deflate
immediately after deployment.
NOTE:
Front and/or side air bags will not deploy in
all collisions. This does not mean something
is wrong with the air bag system.
If you do have a collision which deploys the
air bags, any or all of the following may occur:
• The air bag material may sometimes cause abrasions and/or skin reddening to the oc-
cupants as the air bags deploy and unfold.
The abrasions are similar to friction rope
burns or those you might get sliding along a
carpet or gymnasium floor. They are not
caused by contact with chemicals. They are
not permanent and normally heal quickly.
However, if you haven’t healed significantly
within a few days, or if you have any blis-
tering, see your doctor immediately.
• As the air bags deflate, you may see some smoke-like particles. The particles are a normal by-product of the process that gen-
erates the non-toxic gas used for air bag
inflation. These airborne particles may irri-
tate the skin, eyes, nose, or throat. If you
have skin or eye irritation, rinse the area
with cool water. For nose or throat irritation,
move to fresh air. If the irritation continues,
see your doctor. If these particles settle on
your clothing, follow the garment manufac-
turer’s instructions for cleaning.
Do not drive your vehicle after the air bags
have deployed. If you are involved in another
collision, the air bags will not be in place to
protect you.
WARNING!
Deployed air bags and seat belt preten-
sioners cannot protect you in another col-
lision. Have the air bags, seat belt preten-
sioners, and the seat belt retractor
assemblies replaced by an authorized
dealer immediately. Also, have the Occu-
pant Restraint Controller System serviced
as well. NOTE:
• Air bag covers may not be obvious in the
interior trim, but they will open during air
bag deployment.
• After any collision, the vehicle should be taken to an authorized dealer immediately.
Enhanced Accident Response System
In the event of an impact, if the communica-
tion 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 Sys-
tem perform the following functions:
• Cut off fuel to the engine.
• Flash hazard lights as long as the batteryhas power or until the hazard light button is
pressed. The hazard lights can be deacti-
vated by pressing the hazard light button.
• Turn on the interior lights, which remain on as long as the battery has power.
• Unlock the power door locks.
SAFETY
94

PARKSENSE FRONT AND REAR PARK
ASSIST — IF EQUIPPED
The ParkSense Park Assist system provides
visual and audible indications of the distance
between the rear and/or front fascia and a
detected obstacle when backing up or mov-
ing forward, e.g. during a parking maneuver.
Refer to “ParkSense System Usage
Precautions” in the Owner’s Manual at
www.mopar.com/en-us/care/
owners-manual.html (U.S. Residents) or
www.owners.mopar.ca (Canadian Residents)
for limitations of this system and recommen-
dations.
ParkSense will retain the last system state
(enabled or disabled) from the last ignition
cycle when the ignition is changed to the
ON/RUN position.
ParkSense can be active only when the gear
selector is in REVERSE or DRIVE. If
ParkSense is enabled at one of these gear
selector positions, the system will remain
active until the vehicle speed is increased to
approximately 7 mph (11 km/h) or above. A
warning will appear in the instrument clusterdisplay indicating the vehicle is above
ParkSense operating speed. The system will
become active again if the vehicle speed is
decreased to speeds less than approximately
6 mph (9 km/h).
ParkSense Sensors
For the 3500, 4500 and 5500 Chassis Cab
vehicles, the rear ParkSense sensors are
shipped loose. Please refer to the Ram Body
Builders Guide for more information.
Cleaning The ParkSense System
Clean the ParkSense sensors with water, car
wash soap and a soft cloth. Do not use rough
or hard cloths. Do not scratch or poke the
sensors. Otherwise, you could damage the
sensors.
PARKVIEW REAR BACK UP CAMERA
— IF EQUIPPED
Your vehicle may be equipped with the
ParkView Rear Back Up Camera that allows
you to see a image of the rear surroundings of
your vehicle whenever the gear selector is put
into REVERSE or whenever it is initiated through the "Backup Camera" button in the
"Controls" menu. Whenever the gear selector
is put into REVERSE, the image will be
displayed in the rearview mirror display (if
equipped) or Uconnect screen (if equipped)
along with a caution note to “check entire
surroundings” across the top of the screen.
After five seconds this note will disappear.
NOTE:
For the 3500, 4500 and 5500 Chassis Cab
vehicles, the Rear Backup Camera is shipped
loose and not installed. Please refer to the
Ram Body Builders Guide for more informa-
tion.
The ParkView Camera is located to the left of
the tailgate handle.
When the vehicle is shifted out of REVERSE
(with Camera delay turned off), the rear Cam-
era mode is exited and the navigation or
audio screen appears again.
When the vehicle is shifted out of REVERSE
(with Camera delay turned on), the rear Cam-
era image will be displayed for up to 10 sec-
onds after shifting out of REVERSE unless
STARTING AND OPERATING
136

The DEF injection system consists of the
following components:
• DEF tank
• DEF pump
• DEF injector
• Electronically-heated DEF lines
• DEF control module
• NOx sensors
• Temperature sensors
• SCR catalyst
• UQS Sensor
Refer to “Instrument Cluster Display” in
“Getting To Know Your Instrument Panel” for
system messages and warnings.
NOTE:
• Your vehicle is equipped with a DEF injec-tion system. You may occasionally hear an
audible clicking noise. This is normal op-
eration.
• The DEF pump will run for a period of time after engine shutdown to purge the DEF
system. This is normal operation.Diesel Exhaust Fluid Storage
Diesel Exhaust Fluid (DEF) is considered a
very stable product with a long shelf life. If
DEF is kept in temperatures between 10° and
90°F (-12° and 32°C), it will last a minimum
of one year.
DEF is subject to freezing at the lowest tem-
peratures. For example, DEF may freeze at
temperatures at or below 12° F (-11° C). The
system has been designed to operate in this
environment.
NOTE:
When working with DEF, it is important to
know that:
• Any containers or parts that come into con-tact with DEF must be DEF compatible
(plastic or stainless steel). Copper, brass,
aluminum, iron or non-stainless steel
should be avoided as they are subject to
corrosion by DEF.
• If DEF is spilled, it should be wiped up completely.
Adding Diesel Exhaust Fluid
The DEF gauge (located on the instrument
cluster) will display the level of DEF remain-
ing in the tank. Refer to “Instrument Cluster”
and “Instrument Cluster Descriptions” in
“Getting To Know Your Instrument Panel” for
further information.
NOTE:
• Driving conditions (altitude, vehicle speed,load, etc.) will effect the amount of DEF
that is used in your vehicle.
• Another factor is that outside temperature can affect DEF consumption. In cold con-
ditions, 12° F (-11° C) and below, the DEF
gauge needle can stay on a fixed position
and may not move for extended periods of
time. This is a normal function of the sys-
tem.
• There is an electric heater inside the DEF tank that automatically works when neces-
sary. And if the DEF supply does freeze, the
truck will operate normally until it thaws.
STARTING AND OPERATING
140

CavityCartridge Fuse Micro Fuse Description
F29 20 Amp Blue –Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink –Trailer Tow Receptacle
F31 30 Amp Pink (1500 LD
Diesel) –
Urea Heater Control – If Equipped
F32 –– Spare Fuse
F33 20 Amp Blue –Special Services Vehicle Only
F34 30 Amp Pink –Vehicle System Interface Module #2 – If Equipped
F35 30 Amp Pink –Sunroof – If Equipped
F36 30 Amp Pink –Rear Defroster – If Equipped
F37 30 Amp Pink –Cummins Diesel Fuel Heater #2 – If Equipped
F38 30 Amp Pink –Power Inverter 115V AC – If Equipped
F39 20 Amp Blue –Power Outlet – Special Services Only
F41 –10 Amp Red Active Grill Shutter – If Equipped
F42 –20 Amp Yellow Horn
F44 –10 Amp Red Diagnostic Port
F46 –10 Amp Red Upfitter – If Equipped
F49 –10 Amp Red Instrument Panel Cluster (Except Fleet Vehicles)
F50 –20 Amp Yellow Air Suspension Control Module – If Equipped
F51 –10 Amp Red Ignition Node Module / Keyless Ignition (Instrument
Panel Cluster – Fleet Vehicles Only)
F52 –5 Amp Tan Battery Sensor
F53 –20 Amp Yellow Trailer Tow – Left Turn/Stop Lights
F54 –20 Amp Yellow Adjustable Pedals
157

CavityCartridge Fuse Micro Fuse Description
F56 –15 Amp Blue Additional Diesel Content – If Equipped
F57 –20 Amp Yellow Transmission
F58 –20 Amp Yellow Spare Fuse
F59 –10 Amp Red SCR Relay – If Equipped
F60 –15 Amp Blue Underhood Lamp
F61 –10 Amp Red (1500 LD Die-
sel & Cummins Diesel) PM Sensor – If Equipped
F62 –10 Amp Red Air Conditioning Clutch
F63 –20 Amp Yellow Ignition Coils (Gas), Urea Heater (Cummins Diesel)
F64 –25 Amp Clear Fuel Injectors / Powertrain
F65 –– Spare Fuse
F66 –10 Amp Red Sunroof / Passenger Window Switches / Rain Sensor
F67 –10 Amp Red CD / DVD / Bluetooth Hands-free Module – If Equipped
F69 –15 Amp Blue Mod SCR 12V (Cummins Diesel) – If Equipped
F70 –30 Amp Green Fuel Pump Motor
F71 –25 Amp Clear Amplifier
F72 –10 Amp Red PCM – If Equipped
F73 –20 Amp Yellow Fuel Transfer Pump (HD Only) – If Equipped
F74 –20 Amp Yellow (Gas Engine
& 1500 LD Diesel) Brake Vacuum Pump Gas/Diesel – If Equipped
F75 –10 Amp Red Coolant Temperature Valve Actuator
F76 –10 Amp Red Antilock Brakes / Electronic Stability Control
F77 –10 Amp Red Drivetrain Control Module/Front Axle Disconnect Module
IN CASE OF EMERGENCY
158

If the vehicle experiences a sudden loss of
engine power while being driven in heavy
snow or rain, or when plowing snow, and/or
the “SERVICE AIR FILTER” message is dis-
played on the instrument cluster along with a
chime that repeats every 60 seconds, visually
inspect the air filter for snow/ice build up or
extreme water saturation. If the air filter is
not damaged, remove all snow/ice and rein-
stall air filter. If the air filter is damaged,
replace filter element.
NOTE:
The air filter housing contains a Mass Air
Flow sensor. This sensor is critical to proper
engine operation and component longevity.
Any damage or modification to this sensor
could result in major engine and/or exhaust
aftertreatment damage. We recommend you
use Mopar brand parts.
Even though your vehicle is equipped with an
Air Filter Monitor, a visual inspection of the
air cleaner filter element is recommended
every 15,000 miles (24,000km) or
12 months – whichever occurs first.Under nocircumstances should the air cleaner filter ele-
ment exceed 30,000 miles (48,000 km) or
24 months, whichever comes first.
CAUTION!
Many aftermarket performance air filter
elements do not adequately filter the air
entering the engine. Use of such filters can
severely damage your engine.
Draining Fuel/Water Separator
Filter
There are two fuel filter assemblies. One is
located on the driver's side of the engine. The
best access to this water drain valve is from
under the hood. The second one is on the
under body, located in front of the rear axle
above the drive shaft on pick-up models. The
Chassis Cab models second filter location is
on the frame behind the front axle. The best
access to this water drain valve is from under
the vehicle.
CAUTION!
• Do not drain the fuel/water separator
filter when the engine is running.
• Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appro-
priate container.
If water is detected in the water separator
while the engine is running, or while the
ignition switch is in the ON position, the
“Water In Fuel Indicator Light” will illumi-
nate and an audible chime will be heard five
times. At this point you should stop the
engine and drain the water from both of the
filters.
CAUTION!
If the “Water In Fuel Indicator Light” re-
mains on, DO NOT START the engine be-
fore you drain water from the fuel filters to
avoid engine damage.
If the “Water In Fuel Indicator Light” comes
on and a single chime is heard while you are
driving, or with the ignition switch in the ON
187

position, there may be a problem with your
water separator wiring or sensor. See your
authorized dealer for service.
Upon proper draining of the water from both
fuel filters, the “Water In Fuel Indicator
Light” will remain illuminated for approxi-
mately 10 seconds. If the water was drained
while the engine was running, the “Water In
Fuel Indicator Light” may remain on for ap-
proximately three minutes.
NOTE:
Care should be taken in disposing of used
fluids from your vehicle. Used fluids, indis-
criminately discarded, can present a problem
to the environment. Contact an authorized
dealer, service station, or government agency
for advice on recycling programs and for
where used fluids and filters can be properly
disposed of in your area.
Drain the fuel/water separator filters when
the “Water In Fuel Indicator Light” is ON.
Within 10 minutes of vehicle shutdown, turn
the engine mounted filter drain valve (located
on the side of the filter assembly) counter-
clockwise 1/4 turn, and turn the under body
mounted filter drain valve (located on thebottom of the filter assembly) counterclock
wise 1 full turn. Then turn the ignition switch
to the ON position, and allow any accumu-
lated water to drain. Leave the drain valve
open until all water and contaminants have
been removed. When clean fuel is visible,
close the drain valves by turning them fully
clockwise, and turn the ignition switch to
OFF.
If more than a couple ounces/milliliters of
fuel have been drained, follow the directions
for “Priming If The Engine Has Run Out Of
Fuel.”
Engine Mounted Fuel Filter
Replacement
NOTE:
• Using a fuel filter that does not meet the
manufacturer's filtration and water separat-
ing requirements can severely impact fuel
system life and reliability.
• The engine mounted filter housing is equipped with a No-Filter-No-Run (NFNR)
feature. Engine will not run if:
1. No filter is installed. 2. Inferior/Non-approved filter is used.
Use of OEM filter is required to ensure
vehicle will run.
CAUTION!
• Diesel fuel will damage blacktop pavingsurfaces. Drain the filter into an appro-
priate container.
• Do not prefill the fuel filter when install-
ing a new fuel filter. There is a possibility
debris could be introduced into the fuel
filter during this action. It is best to
install the filter dry and allow the in-tank
lift pump to prime the fuel system.
1. Ensure engine is turned off.
2. Place drain pan under the fuel filter drain hose.
3. Open the water drain valve 1/4 turn coun- terclockwise and completely drain fuel
and water into the approved container.
4. Close the water drain valve.
5. Remove lid using a socket or strap wrench. Rotate counterclockwise for re-
moval. Remove used o-ring and discard it.
SERVICING AND MAINTENANCE
188