2020 Ram 4500 Chassis Cab AUX

GETTING TO KNOW YOUR VEHICLE79
An auxiliary power outlet can be found in the
tray on top of the center stack. This power outlet
works when the ignition is in the ON/RUN, ACC,
or OFF position.

Power Outlet — Top Of Center Stack

Power Outlet Fuse Locations:
F104 Fuse 20 A Yellow UCI Port/ USB Rear
Center Console
F90 Fuse 20 A Yellow Instrument Panel
Power Outlet Battery Fed (If Equipped)
F91 Fuse 20 A Yellow Instrument Panel
Power Outlet Ignition Fed (If Equipped)
F93 Fuse 20 A Yellow Cigar Lighter/ Instru -
ment Panel Power Outlet (If Equipped) When the vehicle is turned off, be sure to
unplug any equipment as to not drain the
battery of the vehicle. All accessories connected
to the outlet(s) should be removed or turned off
when the vehicle is not in use to protect the
battery against discharge.
WARNING!
To avoid serious injury or death:
Only devices designed for use in this type of
outlet should be inserted into any 12 Volt
outlet.
Do not touch with wet hands.
Close the lid when not in use and while
driving the vehicle.
If this outlet is mishandled, it may cause an
electric shock and failure.
CAUTION!
Many accessories that can be plugged in
draw power from the vehicle's battery, even
when not in use (i.e., cellular phones, etc.).
Eventually, if plugged in long enough, the
vehicle's battery will discharge sufficiently
to degrade battery life and/or prevent the
engine from starting.
Accessories that draw higher power (i.e.,
coolers, vacuum cleaners, lights, etc.), will
discharge the battery even more quickly.
Only use these intermittently and with
greater caution.
After the use of high power draw accesso
-
ries, or long periods of the vehicle not being
started (with accessories still plugged in),
the vehicle must be driven a sufficient
length of time to allow the generator to
recharge the vehicle's battery.
2

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 79

100GETTING TO KNOW YOUR INSTRUMENT PANEL
Auto Lock DoorsAuto Lock Doors On; Off
Auto Unlock Doors Auto Unlock Doors On; Off
Sound Horn with Remote Start Horn w/ Rmt Start On; Off
Sound Horn with Remote Lock Horn w/ Rmt Lock Off; 1st Press; 2nd Press
Remote Unlock Sequence Remote Unlock Driver Door; All Doors
Key Fob Linked to Memory Key in Memory On; Off
Passive Entry Passive Entry On; Off
Remote Start Comfort System Rmt Start Comfort Off; Remote Start; All starts
Easy Exit Seat Easy Exit Seat On; Off
Key-off Power Delay Power Off Delay Off; 45 seconds; 5 minutes; 10 minutes
Commercial Settings Commercial
Aux Switches
Power Take-Off
PIN Setup
NOTE:
If the vehicle’s PIN is forgotten or not known, see an authorized dealer to have
the PIN reset.
Trailer Select Trailer Select Trailer 1; Trailer 2; Trailer 3; Trailer 4
Brake Type Brake Type Light Electric; Heavy Electric; Light EOH; Heavy EOH
Setting NamesSetting Names Abbreviated
(Left Submenu Layer) SubMenus (Right Submenu Layer)

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 100

102GETTING TO KNOW YOUR INSTRUMENT PANEL
Commercial Settings — If Equipped
Commercial Settings allows the driver to set
and recall additional features when the trans-
mission is in PARK.
Push and release the up and down button until
Commercial Settings displays in the instrument
cluster display.
Follow the prompts to enter the required PIN
and enter the Commercial Settings submenu. NOTE:
If your vehicle is equipped with a touchscreen
radio, “Commercial Settings” will replace
“Vehicle Settings” in the instrument cluster
display. The Commercial Settings menu will only
include the settings below. For information on
vehicle settings in vehicles equipped with
touchscreen radios, refer to “Uconnect
Settings” in “Multimedia”.
Commercial Settings allows you to access the
following features (if equipped):PTO
Remote Ignition
Idle Control
Backup Alarm
ParkSense
Aux Switches
PIN Setup
NOTE:
If the vehicle’s PIN is forgotten or not known,
see an authorized dealer to have the PIN reset.
Compass Variance
Compass Var 1-15 increments of 1
Calibrate Compass Compass Cal Cancel; Calibrate
Fuel Saver Display Fuel Saver On; Off
Setting NamesSetting Names Abbreviated
(Left Submenu Layer) SubMenus (Right Submenu Layer)

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 102

GETTING TO KNOW YOUR INSTRUMENT PANEL115
Speed Control Fault Warning Light
This warning light will illuminate to
indicate the Speed Control System
is not functioning properly and
service is required. Contact an
authorized dealer.
Yellow Indicator Lights
Forward Collision Warning Off Indicator Light
— If Equipped
This indicator light illuminates to indi -
cate that Forward Collision Warning is
off.
Refer to “Auxiliary Driving Systems” in “Safety”
for further information.
TOW/HAUL Indicator Light
This indicator light will illuminate
when TOW/HAUL mode is selected.
Refer to “Automatic Transmission” in “Starting
And Operating” for further information.
Trailer Merge Assist Indicator Light — If
Equipped
This indicator light will illuminate to
indicate when Trailer Merge Assist
has been activated.
Cargo Light — If Equipped
This indicator light will illuminate
when the cargo light is activated by
pushing the cargo light button on the
headlight switch.
Snowplow Mode Indicator Light — If Equipped
This indicator light will illuminate
when Snowplow Mode has been acti -
vated.
Refer to “Snowplow” in “Starting And Oper -
ating” for further information.
4WD Lock Indicator Light
This light alerts the driver that the
vehicle is in the four-wheel drive LOCK
mode. The front and rear driveshafts
are mechanically locked together, forcing the front and rear wheels to rotate at the
same speed.
Refer to “Four-Wheel Drive Operation” in
“Starting And Operating” for further information
on four-wheel drive operation and proper use.
4WD Low Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive LOW
mode. The front and rear driveshafts
are mechanically locked together
forcing the front and rear wheels to rotate at the
same speed. Low range provides a greater gear
reduction ratio to provide increased torque at
the wheels.
Refer to “Four-Wheel Drive Operation — If
Equipped” in “Starting And Operating” for
further information on four-wheel drive opera -
tion and proper use.
4WD High Indicator Light — If Equipped
This light alerts the driver that the
vehicle is in the four-wheel drive HIGH
mode. The front and rear driveshafts
are mechanically locked together
forcing the front and rear wheels to rotate at the
same speed.
3

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 115

SAFETY129
Disabling HDC
HDC will be deactivated and disabled if any of
the following conditions occur:
The driver pushes the HDC switch.
The driveline is shifted out of 4L Range.
The parking brake is applied.
The driver door opens.
The vehicle is driven greater than 20 mph
(32 km/h) for greater than 70 seconds.
The vehicle is driven greater than 40 mph
(64 km/h) (HDC exits immediately).
HDC detects excessive brake temperature.
Feedback To The Driver
The instrument cluster has an HDC icon and the
HDC switch has an LED icon, which offers feed -
back to the driver about the state HDC is in.
The cluster icon and switch lamp will illumi -
nate and remain on solid when HDC is
enabled or activated. This is the normal oper -
ating condition for HDC.
The cluster icon and switch lamp will flash for
several seconds then extinguish when the
driver pushes the HDC switch but enable
conditions are not met.
The cluster icon and switch lamp will flash for
several seconds then extinguish when HDC
disables due to excess speed.
The cluster icon and switch lamp will flash
when HDC deactivates due to overheated
brakes. The flashing will stop and HDC will
activate again once the brakes have cooled
sufficiently.
AUXILIARY DRIVING SYSTEMS
Forward Collision Warning (FCW) With
Mitigation — If Equipped
The Forward Collision Warning (FCW) system
with mitigation provides the driver with audible
warnings, visual warnings (within the instru -
ment cluster display), and may apply a brake
jerk to warn the driver when it detects a poten -
tial frontal collision. The warnings and limited
braking are intended to provide the driver with
enough time to react, avoid or mitigate the
potential collision.
NOTE:
FCW monitors the information from the forward
looking sensors as well as the Electronic Brake
Controller (EBC), to calculate the probability of a
forward collision. When the system determines
that a forward collision is probable, the driver
will be provided with audible and visual warn-
ings as well as a possible brake jerk warning.
WARNING!
HDC is only intended to assist the driver in
controlling vehicle speed when descending
hills. The driver must remain attentive to the
driving conditions and is responsible for
maintaining a safe vehicle speed.
4

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 129

132SAFETY
Service FCW Warning
If the system turns off, and the instrument
cluster displays:
ACC/FCW Unavailable Service Required
Cruise/FCW Unavailable Service Required
This indicates there is an internal system fault.
Although the vehicle is still drivable under
normal conditions, have the system checked by
an authorized dealer.
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 interfer -
ence, 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 Develop
-
ment applicables aux appareils radio exempts
de licence. L'exploitation est autorisée aux deux
conditions suivantes:

1. l'appareil ne doit pas produire de brouil -
lage, et

2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en comprom -
ettre 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 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.
Tire Pressure Monitoring System (TPMS)
(Vehicles Under 10K GVWR Only)
The Tire Pressure Monitoring System (TPMS)
will warn the driver of a low tire pressure based
on the vehicle recommended cold placard pres -
sure.
NOTE:
The TPMS Warning Light will illuminate in the
instrument cluster and a chime will sound when
tire pressure is low in one or more of the four
active road tires. In addition, the instrument
cluster will display a graphic showing the pres -
sure values of each tire with the low tire pres -
sure values in a different color, or the Uconnect
radio will display a TPMS message. When this
occurs you must increase the tire pressure to
the recommended cold placard pressure in
order for the TPMS Warning Light to turn off.
The tire pressure will vary with temperature by
about 1 psi (7 kPa) for every 12°F (6.5°C). This
means that when the outside temperature
decreases, the tire pressure will decrease. Tire
pressure should always be set based on cold
inflation tire pressure. This is defined as the tire
pressure after the vehicle has not been driven
for at least three hours, or driven less than
1 mile (1.6 km) after a three hour period. The

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 132

140SAFETY
Tire Pressure Information System (TPIS)
3500/4500/5500 Series Trucks
Your vehicle may be equipped with a Tire Pres -
sure Information System (TPIS).
The Tire Pressure Information System (TPIS)
uses wireless technology with wheel rim
mounted electronic sensors to transmit tire
pressure levels. Sensors mounted to each
wheel as part of the valve stem transmit tire
pressure readings to the receiver module.
NOTE:
It is particularly important for you to check the
tire pressure in all of the tires on your vehicle
monthly and to maintain the proper pressure.
The TPIS consists of the following components:
Receiver module
Four TPM sensors (Single Rear Wheel (SRW)
applications)
Six TPM sensors (Dual Rear Wheel (DRW)
applications)
Pressure display in the instrument cluster
The TPIS system will display all four (Single Rear
Wheel (SRW) applications) or six (Dual Rear
Wheel (DRW) applications) tire pressure values
in the instrument cluster display. If a system fault is detected, the instrument
cluster will display a "SERVICE TPM SYSTEM"
message for a minimum of five seconds and
then display dashes (- -) in place of the pressure
value to indicate which sensor is not being
received.
If the ignition switch is cycled, this sequence will
repeat, providing the system fault still exists. If
the system fault no longer exists, the "SERVICE
TPM SYSTEM" message will no longer be
displayed, and a pressure value will display in
place of the dashes. A system fault can occur
due to any of the following:
Signal interference due to electronic devices
or driving next to facilities emitting the same
radio frequencies as the TPM sensors.
Installing aftermarket window tinting that
contains materials that may block radio wave
signals.
Accumulation of snow or ice around the
wheels or wheel housings.
Using tire chains on the vehicle.
Using wheels/tires not equipped with TPM
sensors.
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 interfer
-
ence, 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 Develop -
ment applicables aux appareils radio exempts
de licence. L'exploitation est autorisée aux deux
conditions suivantes:

1. l'appareil ne doit pas produire de brouil -
lage, et

2. l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en comprom -
ettre le fonctionnement.

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 140

218STARTING AND OPERATING
When to Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer,
carrying a heavy load, etc., and frequent trans -
mission shifting occurs, push the TOW/HAUL
switch to activate TOW/HAUL mode. This will
improve performance and reduce the potential
for transmission overheating or failure due to
excessive shifting.

TOW/HAUL Switch

The “TOW/HAUL Indicator Light” will illuminate
in the instrument cluster to indicate that TOW/
HAUL mode has been activated. Pushing the
switch a second time restores normal opera -
tion. Normal operation is always the default at
engine start-up. If TOW/HAUL mode is desired,
the switch must be pushed each time the
engine is started.
AUXILIARY SWITCHES — IF EQUIPPED
There can be up to six auxiliary switches located
in the lower switch bank of the instrument panel
which can be used to power various electronic
devices and PTO (Power Take Off) – If Equipped.
If Power Take Off is equipped, it will take the
place of the sixth Auxiliary switch. Connections
to the switches are found under the hood in the
connectors attached to the auxiliary Power
Distribution Center. You have the ability to configure the function
-
ality of the auxiliary switches via the instrument
cluster display. All switches can now be config -
ured for setting the switch type operation to
latching or momentary, power source of either
battery or ignition, and ability to hold last state
across key cycles.
NOTE:
Holding last state conditions are met when
switch type is set to latching and power source
is set to ignition.
For further information on using the auxiliary
switches, please refer to the Ram Body Builders
Guide by accessing www.rambodybuilder.com
and choosing the appropriate links.
FOUR-WHEEL DRIVE OPERATION — IF
EQUIPPED
Four-wheel drive trucks are equipped with
either a manually shifted transfer case or an
electronically shifted transfer case. Refer to the
operating instructions for your transfer case,
located in this section for further information.
WARNING!
Do not use the “TOW/HAUL” feature when
driving in icy or slippery conditions. The
increased engine braking can cause the rear
wheels to slide, and the vehicle to swing
around with the possible loss of vehicle
control, which may cause an accident
possibly resulting in personal injury or death.

2020_RAM_CHASSIS_CAB_OM_USA=GUID-6C67832B-7839-4CCF-BEFC-CDF988F949EA=1=en=.book Page 218