2020 Ram 3500 warning

GETTING TO KNOW YOUR VEHICLE99
6. Tape the tailgate harness and bracket
against the forward-facing surface of the
tailgate. This will prevent damaging the
connector and bracket when storing or
reinstalling the tailgate.
REMOVING THE TAILGATE

1. Disconnect the wiring harness for the rear camera and or power locks (if equipped).

NOTE:
Refer to “Disconnecting The Rear Camera And
Remote Keyless Entry” in this section.
2. Unlatch the tailgate and remove the support cables by releasing the lock tang from the
pivot.
NOTE:
Make sure tailgate is supported when removing
support cables.
Locking Tang

3. Position the tailgate on a 45 degree angle.
4. Raise the right side of the tailgate until the right side pivot clears the hanger bracket.
5. Slide the entire tailgate to the right to free the left side pivot.
6. Remove the tailgate from the vehicle. NOTE:
Do not carry the tailgate loose in the truck
pickup box.
LOCKING TAILGATE
The tailgate can be locked using the key fob
lock button.
WARNING!
To avoid inhaling carbon monoxide, which is
deadly, the exhaust system on vehicles
equipped with “Cap or Slide-In Campers”
should extend beyond the overhanging
camper compartment and be free of leaks.2

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GETTING TO KNOW YOUR INSTRUMENT PANEL107
3. Instrument Cluster Display
When the appropriate conditions exist,
this display shows the instrument cluster
display messages. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further informa-
tion.
4. Oil Pressure Gauge
The pointer should always indicate the oil
pressure when the engine is running. A
continuous high or low reading under
normal driving conditions may indicate a
lubrication system malfunction. Imme -
diate service should be obtained from an
authorized dealer.
5. Speedometer
Indicates vehicle speed.
6. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition is in the ON/
RUN position.
 The fuel pump symbol points
to the side of the vehicle where
the fuel door is located.
Refer to “Refueling The Vehicle — Gas
Engine” in “Starting And Operating” for
further information.
7. Temperature Gauge
The gauge pointer shows engine coolant
temperature. The pointer positioned
within the normal range indicates that
the engine cooling system is operating
satisfactorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed
to exceed the upper limits of the normal
operating range.
WARNING!
A hot engine cooling system is dangerous.
You or others could be badly burned by steam
or boiling coolant. You may want to call an
authorized dealer for service if your vehicle
overheats. If you decide to look under the
hood yourself, refer to the warnings under
“Cooling System Pressure Cap” in see
“Servicing And Maintenance” for further
information.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads “H,” pull over and
stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops
back into the normal range. If the pointer
remains on the “H,” turn the engine off
immediately and call an authorized dealer for
service.
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GETTING TO KNOW YOUR INSTRUMENT PANEL109
 The fuel pump symbol points
to the side of the vehicle where
the fuel door is located.
Refer to “Refueling The Vehicle — Gas
Engine” in “Starting And Operating” for
further information.
5. Temperature Gauge
The gauge pointer shows engine coolant
temperature. The pointer positioned
within the normal range indicates that
the engine cooling system is operating
satisfactorily.
The gauge pointer will likely indicate a
higher temperature when driving in hot
weather, up mountain grades, or when
towing a trailer. It should not be allowed
to exceed the upper limits of the normal
operating range.
WARNING!
A hot engine cooling system is dangerous.
You or others could be badly burned by steam
or boiling coolant. You may want to call an
authorized dealer for service if your vehicle
overheats. If you decide to look under the
hood yourself, refer to the warnings under
“Cooling System Pressure Cap” in see
“Servicing And Maintenance” for further
information.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads “H,” pull over and
stop the vehicle. Idle the vehicle with the air
conditioner turned off until the pointer drops
back into the normal range. If the pointer
remains on the “H,” turn the engine off
immediately and call an authorized dealer for
service.
3

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110GETTING TO KNOW YOUR INSTRUMENT PANEL
BASE INSTRUMENT CLUSTER — DIESEL ENGINE
Base Instrument Cluster — Diesel Engine
BASE INSTRUMENT CLUSTER
D
ESCRIPTIONS — DIESEL ENGINE

1. Tachometer

Indicates the engine speed in revolutions
per minute (RPM x 1000). 2. Engine Coolant Temperature
This gauge shows the engine coolant
temperature. The gauge pointer will likely
show higher temperatures when driving
in hot weather, up mountain grades, or in
heavy stop and go traffic. If the red Warning Light turns on while driving,
safely bring the vehicle to a stop, and
turn off the engine. DO NOT operate the
vehicle until the cause is corrected.

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GETTING TO KNOW YOUR INSTRUMENT PANEL111
3. Instrument Cluster Display
When the appropriate conditions exist,
this display shows the instrument cluster
display messages. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further informa-
tion. 4. Oil Pressure Gauge
The pointer should always indicate some
oil pressure when the engine is running.
A continuous high or low reading under
normal driving conditions may indicate a
lubrication system malfunction. Imme
-
diate service should be obtained from an
authorized dealer.
5. Speedometer
Indicates vehicle speed.
6. Fuel Gauge
The pointer shows the level of fuel in the
fuel tank when the ignition switch is in
the ON/RUN position.
 The fuel pump symbol points
to the side of the vehicle where
the fuel filler door is located.
Refer to “Refueling The Vehicle — Gas
Engine” in “Starting And Operating” for
further information.
7. Diesel Exhaust Fluid (DEF) Gauge
The DEF Gauge displays the actual level
of Diesel Exhaust Fluid in the DEF tank.
Diesel Exhaust Fluid (DEF) is required to maintain normal vehicle operation and
emissions compliance. If something is
wrong with the gauge, a DEF Warning
Message or Malfunction Indicator Light
(MIL) will be displayed. More information
is available in the instrument cluster
display section under the heading of
Diesel Exhaust Fluid (DEF) Warning
Messages.
NOTE:
The gauge may take up to five seconds to
update after adding a gallon or more of
Diesel Exhaust Fluid (DEF) to the DEF tank. If
you have a fault related to the DEF system,
the gauge may not update to the new level.
See an authorized dealer for service.
The DEF gauge may also not immediately
update after a refill if the temperature of the
DEF fluid is below 39°F (4°C). The DEF tank
heater will warm up the DEF fluid and allow
the gauge to update after a period of run
time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill
level for several drives.
WARNING!
A hot engine cooling system is dangerous.
You or others could be badly burned by steam
or boiling coolant. You may want to call an
authorized dealer for service if your vehicle
overheats.
CAUTION!
Driving with a hot engine cooling system
could damage your vehicle. If the
temperature gauge reads greater “H,” pull
over and stop the vehicle. Idle the vehicle
with the air conditioner turned off until the
pointer drops back into the normal range. If
the pointer remains on the “h,” turn the
engine off immediately and call an authorized
dealer for service.
3

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GETTING TO KNOW YOUR INSTRUMENT PANEL113
 The fuel pump symbol points
to the side of the vehicle where
the fuel filler door is located.
Refer to “Refueling The Vehicle — Gas
Engine” in “Starting And Operating” for
further information.
5. Diesel Exhaust Fluid (DEF) Gauge
The DEF Gauge displays the actual level
of Diesel Exhaust Fluid in the DEF tank.
Diesel Exhaust Fluid (DEF) is required to
maintain normal vehicle operation and
emissions compliance. If something is
wrong with the gauge, a DEF Warning
Message or Malfunction Indicator Light
(MIL) will be displayed. More information
is available in the instrument cluster
display section under the heading of
Diesel Exhaust Fluid (DEF) Warning
Messages. NOTE:

The DEF tank on these vehicles is designed
with a large amount of full reserve. So the level
sensor will indicate a full reading even before
the tank is completely full. To put it another
way, there’s additional storage capacity in the
tank above the Full mark that’s not repre
-
sented in the gauge. You may not see any
movement in the reading – even after driving
up to 200 miles (322 kilometers) in some
cases.

The gauge may take up to five seconds to
update after adding a gallon or more of
Diesel Exhaust Fluid (DEF) to the DEF tank. If
you have a fault related to the DEF system,
the gauge may not update to the new level.
See an authorized dealer for service.
The DEF gauge may also not immediately
update after a refill if the temperature of the
DEF fluid is below 39°F (4°C). The DEF tank
heater will warm up the DEF fluid and allow
the gauge to update after a period of run
time. Under very cold conditions, it is possible
that the gauge may not reflect the new fill
level for several drives.
INSTRUMENT CLUSTER DISPLAY
Your vehicle will be equipped with an
instrument cluster display, which offers useful
information to the driver. With the ignition in the
OFF mode, opening/closing of a door will
activate the display for viewing, and display the
total miles, or kilometers, in the odometer. Your
instrument cluster display is designed to display
important information about your vehicle’s
systems and features. Using a driver interactive
display located on the instrument panel, your
instrument cluster display can show you how
systems are working and give you warnings
when they are not. The steering wheel mounted
controls allow you to scroll through the main
menus and submenus. You can access the
specific information you want and make
selections and adjustments.
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GETTING TO KNOW YOUR INSTRUMENT PANEL117
System Off
ACC Proximity Warning
ACC Unavailable Warning
For further information, refer to “Adaptive
Cruise Control (ACC) — If Equipped” in “Starting
And Operating.”
LaneSense — If Equipped
The instrument cluster display displays the
current LaneSense system settings. The
information displayed depends on LaneSense
system status and the conditions that need to
be met. For further information, refer to
“LaneSense — If Equipped” in “Starting And
Operating.”
Fuel Economy
Push and release the up or down arrow button
until the Fuel Economy menu item is highlighted
in the instrument cluster display. Push and Hold
the right arrow button to reset Average Fuel
Economy.
Current Fuel Economy Gauge
Average Fuel Economy Value
Range To Empty
Trip A/Trip B
Push and release the up or down arrow button
until the Trip menu item is highlighted in the
instrument cluster display. Push and release
the right arrow button to enter the submenus of
Trip A and Trip B. The Trip A or Trip B information
will display the following:
Distance
Average Fuel Economy
Elapsed Time
Push and hold right arrow button to reset all
information.
Trailer Tow — If Equipped
Push and release the up or down arrow button
until the Trailer Tow menu item is highlighted in
the instrument cluster display. Push and
release the right arrow button and the next
screen will display the following trailer trip
information:
Trip Distance (trailer specific): Push and hold
the right arrow button to reset the distance.
Trailer Brake
Output
Type
Gain
Trailer Tire Pressure — If Equipped
Audio
Push and release the up or down arrow button
until the Audio Menu icon/title is highlighted in
the instrument cluster display. This menu will
display the audio source information, including
the Song name, Artist name, and audio source
with an accompanying graphic.
Phone Call Status
When a call is incoming, a Phone Call Status
pop-up will display on the screen. The pop-up
will remain until the phone is answered or
ignored.
NOTE:
The call status will temporarily replace the
previous media source information displayed
on the screen. When the pop-up is no longer
displayed, the display will return to the last used
screen.
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118GETTING TO KNOW YOUR INSTRUMENT PANEL
Stored Messages
Push and release the up or down arrow button
until the Messages Menu item is highlighted.
This feature shows the number of stored
warning messages. Push and release the right
or left arrow buttons to cycle through stored
messages.
Screen Setup Menu Item
Push and release the up or down arrow button
until the Screen Setup menu item is highlighted
in the instrument cluster display. Push and
release the right arrow button to enter the
Screen Setup submenu. The Screen Setup
feature allows you to change what information
is displayed in the instrument cluster as well as
the location that information is displayed.
Current Gear — If Equipped
Off (Default Setting)
On
Odometer
Unit Without Decimal (Default Setting)
Unit With Decimal Favorite Menu
Speedometer
Vehicle Info
Driver Assist (Show/Hide) — If Equipped
Fuel Economy (Show/Hide)
Trip Info (Show/Hide)
Trailer Tow (Show/Hide) — If Equipped
Audio (Show/Hide)
Messages
Screen Setup
Commercial Settings — If Equipped
NOTE:
Menus with (Show/Hide) can push the Right
arrow button to choose whether to show or hide
this menu in the instrument cluster display.
Upper Left
None
Compass (Default Setting) — If Equipped
Outside Temp — If Equipped
Time
Range To Empty
Average MPG
Current MPG
Trip A Distance
Trip B Distance
Trailer Trip — If Equipped
Trailer Brake — If Equipped
Oil Pressure — If Equipped
Coolant Temperature — If Equipped
Oil Temperature — If Equipped
Battery Voltage — If Equipped
Transmission Temperature — If Equipped
Oil Life — If Equipped
Exhaust Brake — If Equipped
Turbo Boost — If Equipped
Fuel Filter Life — If Equipped

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