2020 Ram 3500 stop start

SERVICING AND MAINTENANCE409
When inspecting accessory drive belts, small
cracks that run across ribbed surface of belt
from rib to rib, are considered normal. These
are not a reason to replace belt. However,
cracks running along a rib (not across) are not
normal. Any belt with cracks running along a rib
must be replaced. Also have the belt replaced if
it has excessive wear, frayed cords or severe
glazing.

Accessory Belt (Serpentine Belt)

Conditions that would require replacement:
Rib chunking (one or more ribs has sepa -
rated from belt body)
Rib or belt wear
Longitudinal belt cracking (cracks between
two ribs)
Belt slips
“Groove jumping" (belt does not maintain
correct position on pulley)
Belt broken (note: identify and correct
problem before new belt is installed)
Noise (objectionable squeal, squeak, or
rumble is heard or felt while drive belt is in
operation)
Some conditions can be caused by a faulty
component such as a belt pulley. Belt pulleys
should be carefully inspected for damage and
proper alignment.
Belt replacement on some models requires the
use of special tools, we recommend having your
vehicle serviced at an authorized dealer.
DRAINING FUEL/WATER SEPARATOR
F
ILTER — DIESEL ENGINE
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.
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 illuminate 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!
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.
CAUTION!
If the “Water In Fuel Indicator Light” remains
on, DO NOT START the engine before you
drain water from the fuel filters to avoid
engine damage.
7

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SERVICING AND MAINTENANCE417
Under normal operating conditions, the
catalytic converter will not require
maintenance. However, it is important to keep
the engine properly tuned to ensure proper
catalyst operation and prevent possible catalyst
damage. NOTE:
Intentional tampering with emissions control
systems can result in civil penalties being
assessed against you.
In unusual situations involving grossly
malfunctioning engine operation, a scorching
odor may suggest severe and abnormal catalyst
overheating. If this occurs, stop the vehicle, turn
off the engine and allow it to cool. Service,
including a tune-up to manufacturer's
specifications, should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
Do not interrupt the ignition when the trans
-
mission is in gear and the vehicle is in
motion.
Do not try to start the vehicle by pushing or
towing the vehicle.
Do not idle the engine with any ignition
components disconnected or removed, such
as when diagnostic testing, or for prolonged
periods during very rough idle or malfunc -
tioning operating conditions.
COOLING SYSTEM CAUTION!
The catalytic converter requires the use of
unleaded fuel only. Leaded gasoline will
destroy the effectiveness of the catalyst as
an emissions control device and may seri -
ously reduce engine performance and
cause serious damage to the engine.
Damage to the catalytic converter can
result if your vehicle is not kept in proper
operating condition. In the event of engine
malfunction, particularly involving engine
misfire or other apparent loss of perfor -
mance, have your vehicle serviced
promptly. Continued operation of your
vehicle with a severe malfunction could
cause the converter to overheat, resulting
in possible damage to the converter and
vehicle.
WARNING!
You or others can be badly burned by hot
engine coolant (antifreeze) or steam from
your radiator. If you see or hear steam
coming from under the hood, do not open
the hood until the radiator has had time to
cool. Never open a cooling system pressure
cap when the radiator or coolant bottle is
hot.
Keep hands, tools, clothing, and jewelry
away from the radiator cooling fan when
the hood is raised. The fan starts automati -
cally and may start at any time, whether the
engine is running or not.
When working near the radiator cooling fan,
disconnect the fan motor lead or turn the
ignition to the OFF mode. The fan is
temperature controlled and can start at any
time the ignition is in the ON mode.7

20_DJD2_OM_EN_USC_t.book Page 417

456TECHNICAL SPECIFICATIONS
NOTE:
Intentional tampering with the emissions
control system can result in civil penalties being
assessed against you.
CARBON MONOXIDE WARNINGS
FUEL REQUIREMENTS – DIESEL ENGINE
Use good quality diesel fuel from a reputable
supplier in your vehicle. Federal law requires
that you must fuel this vehicle with Ultra Low
Sulfur Highway Diesel fuel (15 ppm Sulfur
maximum) and prohibits the use of Low Sulfur
Highway Diesel fuel (500 ppm Sulfur maximum)
to avoid damage to the emissions control
system.
For most year-round service, No. 2 diesel fuel
meeting ASTM (formerly known as the American
Society for Testing and Materials) specification
D-975 Grade S15 will provide good
performance. If the vehicle is exposed to
extreme cold (below 20°F or -7°C), or is
required to operate at colder-than-normal
conditions for prolonged periods, use climatized
No. 2 diesel fuel or dilute the No. 2 diesel fuel
with 50% No. 1 diesel fuel. This will provide
better protection from fuel gelling or
wax-plugging of the fuel filters. Diesel fuel is seldom completely free of water.
To prevent fuel system trouble, drain the
accumulated water from the fuel/water
separator using the fuel/water separator drain
provided on both fuel filters. If you buy good
quality fuel and follow the cold weather advice
above, fuel conditioners should not be required
in your vehicle. If available in your area, a high
cetane “premium” diesel fuel may offer
improved cold-starting and warm-up
performance.
WARNING!
Carbon monoxide (CO) in exhaust gases is
deadly. Follow the precautions below to
prevent carbon monoxide poisoning:
Do not inhale exhaust gases. They contain
carbon monoxide, a colorless and odorless
gas, which can kill. Never run the engine in
a closed area, such as a garage, and never
sit in a parked vehicle with the engine
running for an extended period. If the
vehicle is stopped in an open area with the
engine running for more than a short
period, adjust the ventilation system to
force fresh, outside air into the vehicle.
Guard against carbon monoxide with
proper maintenance. Have the exhaust
system inspected every time the vehicle is
raised. Have any abnormal conditions
repaired promptly. Until repaired, drive with
all side windows fully open.
WARNING!
Do not use alcohol or gasoline as a fuel
blending agent. They can be unstable under
certain conditions and hazardous or
explosive when mixed with diesel fuel.
CAUTION!
If the “Water in Fuel Indicator Light” remains
on, DO NOT START engine before you drain
the water from the fuel filter(s) to avoid
engine damage. Refer to “Draining Fuel/
Water Separator Filter” in “Servicing And
Maintenance” for further information.

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476MULTIMEDIA
Doors & Locks
After pressing the Doors & Locks button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Auto Door Locks — If EquippedOn Off
NOTE:
When the “Auto Door Locks” feature is selected, all doors lock automatically when the vehicle reaches a speed of 15 mph (24 km/h). Auto Unlock On Exit On Off
NOTE:
When the “Auto Unlock On Exit” feature is selected, all doors unlock when the vehicle is stopped, the transmission is in the PARK or NEUTRAL position
and the driver's door is opened. Sound Horn With Lock Off1st Press 2nd Press
Remote Door Unlock All Driver
NOTE:
The “Remote Door Unlock” feature allows you to program your remote door locks to open “All doors” or only the “Driver door” with the first push of
the key fob or grabbing the Passive Entry door handle. Sound Horn With Remote Start On Off
NOTE:
When the “Sound Horn With Remote Start” feature is selected, the horn sounds when the remote start is activated.

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MULTIMEDIA495
Auto Unlock On Exit On Off
NOTE:
When the “Auto Unlock On Exit” feature is selected, all doors unlock when the vehicle is stopped and the transmission is in the PARK or NEUTRAL
position, and the driver's door is opened. Flash Lights With Lock On Off
NOTE:
When the “Flash Lights With Lock” feature is selected, the front and rear turn signals flash when the doors are locked or unlocked with the key fob.
This feature may be selected with or without the “Sound Horn With Lock” feature selected. Sound Horn With Lock Off1st Press 2nd Press
Sound Horn With Remote Start On Off
1st Press Of Key Fob Unlocks Driver Door All Doors
NOTE:
When “1st Press Of Key Fob Unlocks: Driver Door” is programmed, only the driver's door unlocks on the first press of the key fob Unlock button.
You must push the key fob unlock button twice to unlock the passengers’ doors.
When “All Doors” is programmed, all of the doors unlock on the first push of the key fob unlock button.
If the vehicle is programmed “1st Press Of Key Fob Unlocks: All Doors”, all doors will unlock no matter which Passive Entry equipped door handle
is grasped. If “1st Press Of Key Fob Unlocks: Driver Door” is programmed, only the driver’s door will unlock when the driver’s door is grasped.
With Passive Entry, if “1st Press Of Key Fob Unlocks: Driver Door” is programmed pushing the handle more than once only results in the driver’s
door opening. If “Driver Door” is programmed, once the driver’s door is opened, the interior door lock/unlock switch can be used to unlock all doors
(or use key fob).
Setting Name Selectable Options
9

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526MULTIMEDIA
RADIO MODE
Operating Radio Mode

Radio Mode
The radio is equipped with the following modes:
FM
AM
SiriusXM® Radio – If Equipped
Push the RADIO button on the faceplate, to
enter the Radio Mode. The different tuner
modes – FM/AM/SXM (if equipped) – can then
be selected by pressing the corresponding
buttons on the touchscreen in the Radio mode.
VOLUME/POWER Knob
Rotate the VOLUME/POWER rotary knob to
adjust the Volume. When the audio system is
turned on, the sound will be set at the same
volume level as last played.
Push the VOLUME/POWER button to turn the
system on or off.
MUTE Button
Push the MUTE button to mute the system.
Push the MUTE button again to unmute the
system.
TUNE/SCROLL Control
Turn the rotary TUNE/SCROLL control knob
clockwise to increase or counterclockwise to
decrease the radio station frequency. Push the
ENTER/BROWSE button to choose a selection.
Seek Functions
Seek Up
Press and release the Seek Up button on the
touchscreen to tune the radio to the next
listenable station or channel.
During a Seek Up function, if the radio reaches
the starting station after passing through the
entire band two times, the radio will stop at the
station where it began.
Fast Seek Up
Press and hold the Seek Up button on the
touchscreen to advance the radio through the
available stations or channels at a faster rate.
The radio stops at the next available station or
channel when the button on the touchscreen is
released.
1 — Station Presets
2 — All Presets
3 — Seek Up
4 — Audio
5 — Info
6 — Tune
7 — AM/FM/SXM
8 — Seek Down

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MULTIMEDIA527
Seek Down
Press and release the Seek Down button on the
touchscreen to tune the radio to the next
listenable station or channel.
During a Seek Down function, if the radio
reaches the starting station after passing
through the entire band two times, the radio will
stop at the station where it began.
Fast Seek Down

Press and hold the Seek Down button on the
touchscreen to advance the radio through the
available stations or channels at a faster rate. The
radio stops at the next available station or channel
when the button on the touchscreen is released.

Direct Tune Functions
Press the Tune button on the touchscreen to
directly tune to a specific radio station. A
keypad will appear. On the keypad, enter in your
desired radio station, and the system will
automatically tune to it.
SiriusXM® Satellite Radio Mode — If
Equipped
SiriusXM® Satellite Radio uses direct
satellite-to-receiver broadcasting technology to
provide clear, coast to coast radio content.
SiriusXM® is a subscription based service. Get over 160 channels on your satellite radio,
and enjoy all you want, all in one place. Hear
commercial-free music, sports, news, talk, and
entertainment. Get all the premium
programming, including Howard Stern, every
NFL® game, every MLB®, every NHL® game,
every NASCAR® race, Martha Stewart, Oprah
Radio, and more. Get 20+ extra channels,
including SiriusXM® Latino, offering 20
channels of commercial-free music, news, talk,
comedy, sports, and more dedicated to Spanish
language programming.
SiriusXM® services require subscriptions, sold
separately after the trial included with the new
vehicle purchase. If you decide to continue your
service at the end of your trial subscription, the
plan you choose will automatically renew and
bill at then-current rates until you call
SiriusXM® at 1-866-635-2349 to cancel. See
SiriusXM® Customer Agreement for complete
terms at www.siriusxm.com (US Residents) or
www.siriusxm.ca (Canadian Residents). All fees
and programming subject to change. Our
satellite service is available only to those at
least 18 and older in the 48 contiguous USA
and D.C. Our Sirius satellite service is also
available in Puerto Rico (with coverage
limitations). Our Internet radio service is available throughout our satellite service area
and in Alaska and Hawai. © 2020 SiriusXM®
Radio Inc. SiriusXM® and all related marks and
logos are trademarks of SiriusXM® Radio Inc.
This functionality is only available for radios
equipped with a Satellite receiver. To receive
satellite radio, the vehicle needs to be outside
with a clear view to the sky.
If the screen displays Acquiring Signal, you may
need to change the vehicle’s position to receive
a signal. In most cases, the satellite radio does
not receive a signal in underground parking
garages or tunnels.
Setting Presets
The Presets are available for all Radio Modes
and are activated by pressing any of the four
Preset buttons on the touchscreen, located at
the top of the screen.
When you are receiving a station that you wish
to commit into memory, press and hold the
desired numbered button on the touchscreen
for more than two seconds or until you hear a
confirmation beep.
The Radio stores up to 12 presets in each of the
Radio modes. Four presets are visible at the top
of the radio screen.
9

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556 J
Jack Location
................................................. 365Jump Starting................................................ 375
K
Key Fob Panic Alarm
................................................. 15Programming Additional Key Fobs....... 16, 24Key Fob Battery Service (Remote
Keyless Entry).................................................. 15
Key Fob Programming (Remote Keyless Entry).. 16
Keyless Enter-N-Go........................28, 214, 218Lock The Vehicle’s Doors....... 476, 494, 514Passive Entry............................................... 28Passive Entry Programming............. 494, 514Keys................................................................. 14Replacement............................................... 24
L
Lane Change And Turn Signals........................ 51Lane Change Assist......................................... 52LaneSense.................................................... 306Latches.......................................................... 212Hood........................................................... 74Lead Free Gasoline........................................ 454Leaks, Fluid................................................... 212Life Of Tires................................................... 439Light Bulbs........................................... 212, 351
Lights............................................................ 212Air Bag.................................... 130, 182, 210Automatic High Beam.................................. 49Brake Assist Warning............................... 148Brake Warning.......................................... 131Bulb Replacement.................................... 351Cab Top Clearance................................... 357Cargo........................................................... 52Center Mounted Stop............................... 356Courtesy/Reading....................................... 53Cruise....................................................... 141Daytime Running......................................... 49
Electronic Stability Program(ESP) Indicator... 132
Exterior...............................................48, 212Fog........................................................... 355Four Wheel Drive Indicator....................... 255Hazard Warning Flasher........................... 346Headlights............................................ 48, 50High Beam................................................... 49Hill Descent Control Indicator................... 149Illuminated Entry......................................... 54Interior......................................................... 53Lights On Reminder..................................... 51Low Fuel................................................... 135Malfunction Indicator (Check Engine)....... 133Park.......................................................... 140Passing........................................................ 50Seat Belt Reminder.................................. 130Security Alarm.......................................... 132Service..................................................... 351
Side Marker.............................................. 357Traction Control........................................ 148Transfer Case........................................... 255Turn Signals............51, 141, 212, 353, 355Warning Instrument Cluster Descriptions................................ 132, 141Limited-Slip Differential....................... 270, 424Load Shed Battery Saver Mode..................... 129Load Shed Battery Saver On......................... 129Load Shed Electrical Load Reduction........... 129Load Shed Intelligent Battery Sensor............ 129Loading Vehicle............................................. 324Tires.......................................................... 433LocksAutomatic Door............................................30Child Protection...........................................30Power Door..................................................27Low Tire Pressure System............................. 163Lubrication, Body.......................................... 414Lug Nuts/Bolts.............................................. 452
M
Maintenance....................................................73Maintenance Free Battery............................ 400Maintenance Plan......................................... 391Maintenance Schedule............... 385, 389, 391Malfunction Indicator Light
(Check Engine)..................................... 133, 143

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