2020 Ram 3500 keyless

98GETTING TO KNOW YOUR VEHICLE
SLIDE-IN CAMPERS
CAMPER APPLICATIONS
Certain truck models are not recommended for
slide-in campers. To determine if your vehicle is
excluded, please refer to the “Consumer
Information Truck-Camper Loading” document
at www.ramtrucks.com. For safety reasons,
follow all instructions in this important
document.
NOTE:
When a cap or pickup camper is installed on a
vehicle, an alternate Center High-Mounted Stop
Light (CHMSL) must be provided.
EASY-OFF TAILGATE
To simplify mounting of a camper unit with an
overhang, the tailgate can be removed.
NOTE:
The electric connector at the bottom of the tail -
gate must be disconnected prior to removing
the tailgate.
DISCONNECTING THE REAR CAMERA
A
ND REMOTE KEYLESS ENTRY

1. Open the tailgate to access the rear
camera or Remote Keyless Entry
connector bracket located on the rear sill.

Connector Bracket
2. Remove the connector bracket from the sill
by pushing inward in the locking tab.

Locking Tab

3. Disconnect the chassis wiring harness, ensuring the connector bracket does not
fall into the sill.
4. Connect the chassis plug and bracket (provided in the glove compartment) to the
chassis wiring harness and insert the
bracket back into the sill.
5. Connect the tailgate plug (provided in the glove compartment) to the tailgate wiring
harness to ensure that the terminals do not
corrode.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.

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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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213
(Continued)
STARTING AND OPERATING
STARTING THE ENGINE — GAS ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belt.
The starter should not be operated for more
than 10-second intervals. Waiting a few
seconds between such intervals will protect the
starter from overheating.
AUTOMATIC TRANSMISSION
Start the engine with the transmission in PARK
position. Apply the brake before shifting into any
driving range.NOTE:
This vehicle is equipped with a transmission
shift interlocking system. The brake pedal
must be pressed to shift out of PARK.
If equipped with an 8-speed transmission,
starting the vehicle in NEUTRAL is not
possible unless the Manual Park Release has
been activated. For the Manual Park Release
operation refer to Manual Park Release in “In
Case Of Emergency”.
TIP START FEATURE
Do not
press the accelerator. Cycle the ignition
switch briefly to the START position and release
it. The starter motor will continue to run and will
automatically disengage when the engine is
running.
WARNING!
When leaving the vehicle, always make
sure the keyless ignition node is in the
"OFF" mode, remove the key fob from the
vehicle and lock the vehicle.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle.
Allowing children to be in a vehicle unat -
tended is dangerous for a number of
reasons. A child or others could be seriously
or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the gear selector.
Do not leave the key fob in or near the
vehicle, or in a location accessible to chil-
dren, and do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go
in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
WARNING! (Continued)
5

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214STARTING AND OPERATING
KEYLESS ENTER-N-GO — IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button, as long
as the Remote Start/Keyless Enter-N-Go key
fob is in the passenger compartment.
NORMAL STARTING USING ENGINE
START/S TOP B
UTTON
To Turn On The Engine Using The ENGINE
START/STOP Button

1. The transmission must be in PARK.

2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once.
3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the
starter will disengage automatically after
10 seconds.
4. If you wish to stop the cranking of the engine prior to the engine starting, push the
ENGINE START/STOP button again.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or pressing
the accelerator pedal. To Turn Off The Engine Using ENGINE START/
STOP Button

1. Place the gear selector in PARK, then push
and release the ENGINE START/STOP
button.

2. The ignition will return to the OFF mode.
3. If the gear selector is not in PARK, the ENGINE START/STOP button must be held
for two seconds or three short pushes in a
row with the vehicle speed above 5 mph
(8 km/h) before the engine will shut off. The
ignition will remain in the ACC mode until
the gear selector is in PARK and the button
is pushed twice to the OFF mode.
4. If the gear selector is not in PARK and the ENGINE START/STOP button is pushed
once with the vehicle speed above 5 mph
(8 km/h), the instrument cluster will display
a “Vehicle Not In Park ” message and the
engine will remain running. Never leave a
vehicle out of the PARK position, or it could
roll.
NOTE:
If the gear selector is not in PARK, and the
ENGINE START/STOP button is pushed once with the vehicle speed below 5 mph (8 km/h),
the engine will shut off and the ignition will
remain in the ACC position. If vehicle speed
drops below 1.2 mph (1.9 km/h), the vehicle
may AutoPark. See AutoPark section for further
details.
ENGINE START/STOP Button Functions — With
Driver’s Foot OFF The Brake Pedal (In PARK Or
NEUTRAL Position)
The ENGINE START/STOP button operates
similar to an ignition switch. It has three modes:
OFF, ACC, and RUN. To change the ignition
modes without starting the vehicle and use the
accessories, follow these directions:

1. Start with the ignition in the OFF mode.

2. Push the ENGINE START/STOP button once
to place the ignition to the ACC mode.
3. Push the ENGINE START/STOP button a second time to place the ignition to the RUN
mode.
4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF
mode.

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STARTING AND OPERATING215
(Continued)
AutoPark — Rotary Shifter and 8-Speed
Transmission Only
AutoPark is a supplemental feature to assist in
placing the vehicle in PARK should the
situations on the following pages occur. It is a
back up system and should not be relied upon
as the primary method by which the driver shifts
the vehicle into PARK.
The conditions under which AutoPark will
engage are outlined on the following pages. If the vehicle is not in PARK and the driver turns
off the engine, the vehicle may AutoPark.
AutoPark will engage when all of these
conditions are met:
Vehicle is equipped with a rotary shifter and
an 8-speed transmission
Vehicle is not in PARK
Vehicle speed is 1.2 mph (1.9 km/h) or less
Ignition switched from RUN to ACC
NOTE:
For Keyless Enter-N-Go equipped vehicles, The
engine will turn off and the ignition switch will
change to ACC mode. After 30 minutes the igni -
tion switches to OFF automatically, unless the
driver turns the ignition switch OFF. If the vehicle is not in PARK and the driver exits
the vehicle with the engine running, the vehicle
may AutoPark.
AutoPark will engage when all of these
conditions are met:
Vehicle is equipped with a rotary shifter and
an 8-speed transmission
Vehicle is not in PARK
Vehicle speed is 1.2 mph (1.9 km/h) or less
Driver’s seat belt is unbuckled
Driver’s door is ajar
Brake pedal is not depressed
The message “ AutoPark Engaged Shift to P then
Shift to Gear ” will display in the instrument
cluster.
NOTE:
In some cases the ParkSense graphic will be
displayed in the instrument cluster, causing the
“ AutoPark Engaged Shift to P then Shift to Gear ”
to not be seen. In these cases, the shifter must
be returned to “P” to select desired gear.
WARNING!
Driver inattention could lead to failure to
place the vehicle in PARK. ALWAYS DO A
VISUAL CHECK that your vehicle is in PARK
by verifying that a solid (not blinking) “P” is
indicated in the Instrument Cluster Display
and near the gear selector. If the “P” indi -
cator is blinking, your vehicle is not in
PARK. As an added precaution, always
apply the parking brake when exiting the
vehicle.
AutoPark is a supplemental feature. It is not
designed to replace the need to shift your
vehicle into PARK. It is a back up system
and should not be relied upon as the
primary method by which the driver shifts
the vehicle into PARK.
WARNING! (Continued)
5

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STARTING AND OPERATING217
(Continued)
If the engine has been flooded, it may start to
run, but not have enough power to continue
running when the ignition button/key is
released. If this occurs, continue cranking with
the accelerator pedal pushed all the way to the
floor. Release the accelerator pedal and the
ignition button/key once the engine is running
smoothly.
If the engine shows no sign of starting after a
10 second period of engine cranking with the
accelerator pedal held to the floor, wait 10 to
15 seconds, then repeat the “Normal Starting”
procedure.
COLD WEATHER OPERATION (BELOW
–22°F O
R −30°C)
To ensure reliable starting at these
temperatures, use of an externally powered
electric engine block heater (available from an
authorized dealer) is recommended.
AFTER STARTING
The idle speed is controlled automatically, and
it will decrease as the engine warms up.
STARTING THE ENGINE — DIESEL ENGINE
Before starting your vehicle, adjust your seat,
adjust both inside and outside mirrors, and
fasten your seat belts.
The starter should not be operated for more
than 25-second intervals. Waiting a few
minutes between such intervals will protect the
starter from overheating.
AUTOMATIC TRANSMISSION
Start the engine with the transmission in the
NEUTRAL or PARK position. Apply the brake
before shifting to any driving range.
CAUTION!
To prevent damage to the starter, do not
crank the engine for more than 10 seconds at
a time. Wait 10 to 15 seconds before trying
again.
WARNING!
Do not leave children or animals inside
parked vehicles in hot weather. Interior
heat build-up may cause serious injury or
death.
When leaving the vehicle, always make
sure the keyless ignition node is in the
“OFF” mode, remove the key fob from the
vehicle and lock the vehicle.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle.
Allowing children to be in a vehicle unat -
tended is dangerous for a number of
reasons. A child or others could be seriously
or fatally injured. Children should be
warned not to touch the parking brake,
brake pedal or the gear selector.
Do not leave the key fob in or near the
vehicle, or in a location accessible to chil -
dren, and do not leave the ignition of a
vehicle equipped with Keyless Enter-N-Go
in the ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.
WARNING! (Continued)
5

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218STARTING AND OPERATING
Tip Start Feature
Do not press the accelerator. Cycle the ignition
switch briefly to the START position and release
it. The starter motor will continue to run and will
automatically disengage when the engine is
running.
KEYLESS ENTER-N-GO — IGNITION
This feature allows the driver to operate the
ignition switch with the push of a button, as long
as the Remote Start/Keyless Enter-N-Go key
fob is in the passenger compartment.
Normal Starting
Using The ENGINE START/STOP Button

1. The transmission must be in PARK or NEUTRAL.

2. Press and hold the brake pedal while pushing the ENGINE START/STOP button
once.
3. The system takes over and attempts to start the vehicle. If the vehicle fails to start, the
starter will disengage automatically after
25 seconds. 4. If you wish to stop the cranking of the
engine prior to the engine starting, remove
your foot from the brake pedal and push the
ENGINE START/STOP button again.
NOTE:
Normal starting of either a cold or a warm
engine is obtained without pumping or
pressing the accelerator pedal.
Under cold weather conditions, the engine
may not immediately crank if the “Wait To
Start” telltale is illuminated. This is normal
operation. For vehicles equipped with
Keyless Enter-N-Go, the vehicle will automat -
ically crank when the “Wait To Start” time has
elapsed. See the section “Starting Procedure
— Engine Manifold Air Temperature 0°F to
66°F (-18°C to 19°C)” for more information.
To Turn Off The Engine Using ENGINE START/
STOP Button

1. Place the gear selector in PARK, then push and release the ENGINE START/STOP
button.

2. The ignition will return to the OFF mode. 3. If the gear selector is not in PARK and the
ENGINE START/STOP button is pushed
once, the instrument cluster will display a
“Vehicle Not In Park” message and the
engine will remain running. Never leave a
vehicle out of the PARK position, or it could
roll.
4. If the gear selector is in NEUTRAL, and the vehicle speed below 5 mph (8 km/h),
pushing the ENGINE START/STOP button
once will turn the engine off. The ignition will
remain in the ACC mode.

5. If the vehicle speed is above 5 mph (8 km/h), the ENGINE START/STOP button must be
held for two seconds (or three short pushes
in a row) to turn the engine off. The ignition
will remain in the ACC mode (NOT the OFF
mode) if the engine is turned off when the
transmission is not in PARK.

NOTE:
If the ignition is left in the ACC or ON/RUN
(engine not running) mode and the transmis -
sion is in PARK, the system will automatically
time out after 30 minutes of inactivity and the
ignition return to the OFF mode.

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STARTING AND OPERATING219
ENGINE START/STOP Button Functions — With
Driver’s Foot OFF The Brake Pedal (In PARK Or
NEUTRAL Position)
The ENGINE START/STOP button operates
similar to an ignition switch. It has three
positions, OFF, ACC, RUN. To change the
ignition switch positions without starting the
vehicle and use the accessories follow these
steps:

1. Starting with the ignition in the OFF
position:

2. Push the ENGINE START/STOP button once to change the ignition to the ACC position.
3. Push the ENGINE START/STOP button a second time to change the ignition to the
RUN position.
4. Push the ENGINE START/STOP button a third time to return the ignition to the OFF
position.Keyless Enter-N-Go Starting Procedure —
Engine Manifold Air Temperature 0° F To
66° F (–18° C to 19° C)
NOTE:
The temperature displayed in the instrument
cluster does not necessarily reflect the engine
manifold air temperature. Refer to “Instrument
Cluster Display” in “Getting To Know Your
Instrument Panel” for further information.
When engine temperatures fall below 66°F
(19°C) the “Wait To Start” telltale will remain on
indicating the intake air heater system is active.
Follow the steps in the “Normal Starting”
procedure except:

1. Pushing the ENGINE START/STOP button with the driver’s foot on the brake will
move the ignition from OFF or ACC to RUN,
and will illuminate the “Wait To Start”
telltale. The engine will not immediately
crank, this is normal operation.

2. The “Wait To Start” telltale will remain on for a period of time that varies depending on
the engine temperature. 3. While the “Wait to Start” telltale is on, the
instrument cluster will additionally display a
gauge or bar whose initial length represents
the full “Wait to Start” time period. Its length
will decrease until it disappears when the
“Wait to Start” time has elapsed.
4. After the engine “Wait To Start” telltale goes off, the engine will automatically crank.
CAUTION!
If the “Water in Fuel Indicator Light” remains
on, DO NOT START the engine before you
drain the water from the fuel filters to avoid
engine damage. Refer to “Draining Fuel/
Water Separator Filter” in “Servicing And
Maintenance” for further information.
CAUTION!

Do not crank engine for more than 25 seconds
at a time or starter motor damage may result.
Turn the ignition switch to the OFF position and
wait at least two minutes for the starter to cool
before repeating start procedure.

5

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