child lock Ram 3500 2020 Owner's Guide

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

20_DJD2_OM_EN_USC_t.book Page 217

STARTING AND OPERATING223
(Continued)
STARTING FLUIDS
The engine is equipped with an automatic
electric air preheating system. If the
instructions in this manual are followed, the
engine should start in all conditions.
NORMAL OPERATION — DIESEL ENGINE
Observe the following when the engine is
operating:
All message center lights are off.
Malfunction Indicator Light (MIL) is off.
Engine oil pressure is above 10 psi (69 kPa)
at idle.
Voltmeter operation:
The voltmeter may show a gauge fluctuation at
various engine temperatures. This cycling
operation is caused by the post-heat cycle of the
intake manifold heater system. The number of
cycles and the length of the cycling operation is
controlled by the engine control module.
Post-heat operation can run for several
minutes, and then the electrical system and
voltmeter needle will stabilize.
The cycling action will cause temporary
dimming of the headlamps, interior lamps, and
also a noticeable reduction in blower motor
speed.
COLD WEATHER PRECAUTIONS
Operation in ambient temperature below 32°F
(0°C) may require special considerations. The
following charts suggest these options:
WARNING!
Starting fluids or flammable liquids must
never be used in the Cummins diesel engine
(see Warning label). Never pour diesel fuel,
flammable liquid, starting fluids (ether) into
the air cleaner canister, air intake piping, or
turbocharger inlet in an attempt to start the
vehicle. This could result in a flash fire and
explosion causing serious personal injury and
engine damage.
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 unattended 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

20_DJD2_OM_EN_USC_t.book Page 223

STARTING AND OPERATING231
(Continued)
NOTE:
Light duty operation such as light trailer towing
or no load operation will extend the time before
the engine is at full efficiency. Reduced fuel
economy and power may be seen at this time.
For additional vehicle break-in requirements,
refer to “Trailer Towing” in “Starting And
Operating” of the Owners Manual.
Because of the construction of the Cummins®
Turbo Diesel engine, engine run-in is enhanced
by loaded operating conditions which allow the
engine parts to achieve final finish and fit during
the first 6,000 miles (10,000 km).
PARKING BRAKE
Before leaving the vehicle, make sure that the
parking brake is fully applied. Also, be certain to
leave the transmission in PARK.
The foot-operated parking brake is located
below the lower left corner of the instrument
panel. To apply the park brake, firmly push the
park brake pedal fully. To release the parking
brake, pull the parking brake release handle.
Parking Brake Release

When the parking brake is applied with the
ignition switch ON, the “Brake Warning Light” in
the instrument cluster will illuminate.
NOTE:When the parking brake is applied and the
transmission is placed in gear, the “Brake
Warning Light” will flash. If vehicle speed is
detected, a chime will sound to alert the
driver. Fully release the parking brake before
attempting to move the vehicle.
This light only shows that the parking brake is
applied. It does not show the degree of brake
application. When parking on a hill, it is important to turn the
front wheels toward the curb on a downhill
grade and away from the curb on an uphill
grade. Apply the parking brake before placing
the gear selector in PARK, otherwise the load on
the transmission locking mechanism may make
it difficult to move the gear selector out of PARK.
The parking brake should always be applied
whenever the driver is not in the vehicle.
WARNING!
Never use the PARK position as a substi
-
tute for the parking brake. Always apply the
parking brake fully when parked to guard
against vehicle movement and possible
injury or damage.
Never leave children alone in a vehicle, or
with access to an unlocked vehicle. Leaving
unattended children in a vehicle is
dangerous for a number of reasons. A child
or others could be seriously or fatally
injured.
5

20_DJD2_OM_EN_USC_t.book Page 231

234STARTING AND OPERATING
(Continued)
(Continued)
NOTE:
You must press and hold the brake pedal while
shifting out of PARK.
IGNITION PARK INTERLOCK
This vehicle is equipped with an Ignition Park
Interlock which requires the transmission to be
in PARK before the ignition can be turned to the
OFF mode. This helps the driver avoid
inadvertently leaving the vehicle without placing
the transmission in PARK. This system also
locks the transmission in PARK whenever the
ignition is in the OFF mode.
NOTE:
The transmission is NOT locked in PARK when
the ignition is in the ACC mode (even though the
engine will be off). Ensure that the transmission
is in PARK, and the ignition is OFF (not in ACC
mode) before exiting the vehicle.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accel -
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle, always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, and turn the igni -
tion OFF. When the ignition is in the OFF
mode, the transmission is locked in PARK,
securing the vehicle against unwanted
movement.
When exiting the vehicle, always make sure
the ignition is in the OFF mode, remove the
key fob from the vehicle, and lock the
vehicle.
WARNING! (Continued)
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 transmission 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 in the
ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.
CAUTION!
Damage to the transmission may occur if the
following precautions are not observed:
Shift into or out of PARK or REVERSE only
after the vehicle has come to a complete
stop.
WARNING! (Continued)
Do not shift between PARK, REVERSE,
NEUTRAL, or DRIVE when the engine is
above idle speed.
Before shifting into any gear, make sure
your foot is firmly pressing the brake pedal.
CAUTION! (Continued)

20_DJD2_OM_EN_USC_t.book Page 234

STARTING AND OPERATING237
The following indicators should be used to
ensure that you have properly engaged the
transmission into the PARK position:
Look at the transmission gear position
display and verify that it indicates the PARK
position (P), and is not blinking.
With brake pedal released, verify that the
gear selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has
come to a complete stop.
NEUTRAL (N)
Use this range when the vehicle is standing for
prolonged periods with the engine running.
Apply the parking brake and shift the
transmission into PARK if you must exit the
vehicle. DRIVE (D)
This range should be used for most city and
highway driving. It provides the smoothest
upshifts and downshifts, and the best fuel
economy. The transmission automatically
upshifts through all forward gears. The DRIVE
position provides optimum driving
characteristics under all normal operating
conditions.
When frequent transmission shifting occurs
(such as when operating the vehicle under
heavy loading conditions, in hilly terrain,
traveling into strong head winds, or while towing
a heavy trailer), select TOW/HAUL mode or use
the Electronic Range Select (ERS) shift control
refer to "Electronic Range Select [ERS]
Operation" in this section for further information
to select a lower gear range. Under these

Never leave children alone in a vehicle, or
with access to an unlocked vehicle. Allowing
children to be in a vehicle unattended 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 transmis
-
sion 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 in the
ACC or ON/RUN mode. A child could
operate power windows, other controls, or
move the vehicle.
CAUTION!
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range,
as this can damage the drivetrain.
Before moving the transmission gear
selector out of PARK, you must start the
engine, and also press the brake pedal.
Otherwise, damage to the gear selector
could result.
WARNING! (Continued)
WARNING!
Do not coast in NEUTRAL and never turn off
the ignition to coast down a hill. These are
unsafe practices that limit your response to
changing traffic or road conditions. You might
lose control of the vehicle and have a
collision.
CAUTION!
Towing the vehicle, coasting, or driving for any
other reason with the transmission in
NEUTRAL can cause severe transmission
damage. Refer to “Recreational Towing” in
“Starting And Operating” and “Towing A
Disabled Vehicle” in “In Case Of Emergency”
for further information.
5

20_DJD2_OM_EN_USC_t.book Page 237

STARTING AND OPERATING241
(Continued)
(Continued)
The following indicators should be used to
ensure that you have properly engaged the
transmission into the PARK position:
When shifting into PARK, pull the gear
selector toward you and move it all the way
counterclockwise until it stops.
Release the gear selector and make sure it is
fully seated in the PARK gate.
Look at the transmission gear position
display and verify that it indicates the PARK
position (P).
With brake pedal released, verify that the
gear selector will not move out of PARK.
REVERSE (R)
This range is for moving the vehicle backward.
Shift into REVERSE only after the vehicle has
come to a complete stop.
It is dangerous to shift out of PARK or
NEUTRAL if the engine speed is higher than
idle speed. If your foot is not firmly pressing
the brake pedal, the vehicle could accel -
erate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and your
foot is firmly pressing the brake pedal.
Unintended movement of a vehicle could
injure those in or near the vehicle. As with
all vehicles, you should never exit a vehicle
while the engine is running. Before exiting a
vehicle, always come to a complete stop,
then apply the parking brake, shift the
transmission into PARK, turn the engine off,
and remove the key fob. When the ignition
is in the LOCK/OFF (key removal) position
(or, with Keyless Enter-N-Go, when the igni -
tion is in the OFF mode), the transmission is
locked in PARK, securing the vehicle
against unwanted movement.
When leaving the vehicle, always make
sure the ignition is in the OFF mode,
remove the key fob from the vehicle, and
lock the vehicle.
WARNING! (Continued)
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 transmission 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 (in 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.
CAUTION!
Before moving the transmission gear
selector out of PARK, you must turn the igni -
tion to the ON/RUN mode, and also press
the brake pedal. Otherwise, damage to the
gear selector could result.
WARNING! (Continued)
DO NOT race the engine when shifting from
PARK or NEUTRAL into another gear range,
as this can damage the drivetrain.
CAUTION! (Continued)
5

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553
Belts, Seat
..................................................... 210Blind Spot Monitoring.................................... 153Body Builders Guide........................................ 12Body Mechanism Lubrication........................ 414B-Pillar Location............................................. 433Brake Assist System...................................... 145Brake Control System.................................... 145Brake Fluid.......................................... 421, 463Brake System...................................... 421, 452Fluid Check............................................... 421Master Cylinder......................................... 421Parking...................................................... 231Warning Light............................................ 131Brake/Transmission Interlock....................... 235Bulb Replacement......................................... 351Bulbs, Light.......................................... 212, 351
C
Cab Top Clearance Lights.............................. 357Camera.......................................................... 309Camera, AUX........................................ 311, 318Camera, Rear...................................... 309, 312Camper............................................................ 98Capacities, Antifreeze (Engine Coolant)......... 460Capacities, Fluid.................................. 459, 460Caps, Filler Oil (Engine)...................................... 396, 402Radiator (Coolant Pressure)...................... 419Car Washes................................................... 448Carbon Monoxide Warning.................. 209, 456
Cargo Light....................................................... 52Cellular Phone.............................................. 540Center High Mounted Stop Light................... 356Center Seat Storage Compartment.................. 81Charge Air Cooler.......................................... 421Chart, Tire Sizing........................................... 430Check Engine Light (Malfunction
Indicator Light).............................................. 143Checking Your Vehicle For Safety................. 209Checks, Safety.............................................. 209Child Restraint.............................................. 191Child RestraintsBooster Seats........................................... 194Child Seat Installation..................... 202, 204How To Stow An unused ALR Seat Belt.... 201Infant And Child Restraints....................... 192Locating The LATCH Anchorages.............. 199Lower Anchors And Tethers For Children.. 195Older Children And Child Restraints......... 193Seating Positions...................................... 195Clean Air Gasoline......................................... 454CleaningWheels..................................................... 442Climate Control................................................ 57Automatic.................................................... 61Manual........................................................ 57Cold Weather Operation............................... 217Compact Spare Tire...................................... 441Contract, Service.......................................... 549Cooling Pressure Cap (Radiator Cap)............ 419
Cooling System............................................. 417Adding Coolant (Antifreeze)...................... 418Coolant Level................................... 418, 420Cooling Capacity.............................. 459, 460Disposal Of Used Coolant......................... 420Drain, Flush, And Refill............................. 418Inspection................................................. 420Points To Remember................................ 420Pressure Cap............................................ 419Radiator Cap............................................. 419Selection Of Coolant (Antifreeze).... 418, 459, 461, 464Corrosion Protection..................................... 447Cruise Control (Speed Control)............. 280, 282Cruise Light................................................... 141Cupholders.......................................................86Customer Assistance.................................... 548Cybersecurity................................................ 467
D
Daytime Running Lights...................................49Dealer Service............................................... 401Defroster, Rear Window...................................57Defroster, Windshield............................ 57, 210Delay (Intermittent) Wipers..............................55Diagnostic System, Onboard......................... 142Diesel Exhaust Brake.................................... 232Diesel Fuel.................................................... 456Diesel Fuel Requirements............................. 456
11

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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

20_DJD2_OM_EN_USC_t.book Page 556

558 Power Seats Down
........................................................... 35Forward....................................................... 35Rearward..................................................... 35Recline........................................................ 35Tilt............................................................... 35Up................................................................ 35Power Steering Fluid...................................... 463Pregnant Women And Seat Belts...................180PretensionersSeat Belts.................................................. 180
R
Radial Ply Tires.............................................. 437Radiator Cap (Coolant Pressure Cap).. 418, 419Radio Operation............................................ 540Rain Sensitive Wiper System........................... 56Ramp Travel Index......................................... 261Rear Axle (Differential)................................... 424Rear Camera................................................. 312Rear Cargo Area Utility Rails............................ 96Rear Cross Path............................................. 156Rear ParkSense System...................... 296, 301Rear Window, Sliding....................................... 71Reclining Rear Seats....................................... 34Recreational Towing...................................... 339Shifting Into Transfer Case Neutral (N)..... 341Shifting Out Of Transfer Case Neutral (N).. 342Reformulated Gasoline.................................. 454Refrigerant.................................................... 406
Release, Hood................................................. 74Release, Tailgate............................................. 74Reminder, Seat Belt...................................... 173Remote Keyless Entry...................................... 14Panic Alarm................................................. 15Programming Additional Key Fobs........ 16, 24Remote Start (Diesel)...................................... 21Remote Start (Gasoline).................................. 19Remote StartingExit Remote Start Mode.............................. 20Uconnect Customer Programmable Features............................. 478, 497, 516Uconnect Settings.................. 478, 497, 516Replacement Bulbs...................................... 351Replacement Keys........................................... 24Replacement Tires........................................ 439Reporting Safety Defects.............................. 550Resetting Perform Service Indicator............. 390Restraints, Child........................................... 191Restraints, Head.............................................. 38Rotation, Tires.............................................. 444
S
Safety Checks Inside Vehicle........................ 210Safety Checks Outside Vehicle..................... 212Safety Defects, Reporting............................. 550Safety Information, Tire................................ 429Safety Tips.................................................... 209Safety, Exhaust Gas...................................... 209Schedule, Maintenance................................ 385
Seat Belt Reminder....................................... 130Seat Belts............................................ 173, 210Adjustable Shoulder Belt.......................... 177Adjustable Upper Shoulder Anchorage..... 177Adjustable Upper Shoulder Belt Anchorage............................................ 177Automatic Locking Retractor (ALR)........... 180Child Restraints........................................ 191Energy Management Feature................... 180Extender................................................... 179Front Seat........................................ 173, 176Inspection................................................. 210Lap/Shoulder Belt Operation.................... 176Lap/Shoulder Belt Untwisting................... 177Operating Instructions.............................. 176Pregnant Women...................................... 180Pretensioners........................................... 180Reminder.................................................. 173Seat Belt Extender.................................... 179Seat Belt Pretensioner.............................. 180Seat Belt Reminder.................................. 173Untwisting Procedure................................ 177Seat Belts Maintenance................................ 450Seats.................................................. 33, 34, 35Adjustment...........................................33, 35Easy Entry....................................................36Folding Floor................................................84Head Restraints...........................................38

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