heater Ram 1500 2020 Owner's Manual

6
STARTING AND OPERATING
STARTING THE ENGINE .............................................. 290
Automatic Transmission ............................................ 291
Tip Start Feature ......................................................... 291
Keyless Enter-N-Go — Ignition................................. 291
Normal Starting Using ENGINE START/STOP
Button ............................................................................ 292
Cold Weather Operation (Below –22°F Or
−30°C) ........................................................................... 296
After Starting................................................................ 296
 ENGINE BLOCK HEATER — IF EQUIPPED .............. 296
 ENGINE BREAK-IN RECOMMENDATIONS ............ 297
 PARKING BRAKE ............................................................ 297
Electric Park Brake (EPB) ........................................... 297
 AUTOMATIC TRANSMISSION ................................... 302
Ignition Park Interlock ................................................ 303
Brake/Transmission Shift Interlock System ........... 304
Eight-Speed Automatic Transmission ..................... 304
 FOUR-WHEEL DRIVE OPERATION — IF
 EQUIPPED ........................................................................ 310
Four-Position Electronically Shifted Transfer Case
(Eight Speed Transmission Only) — If
Equipped ...................................................................... 311
Five-Position Electronically Shifted Transfer Case
(Eight Speed Transmission Only) — If
Equipped ...................................................................... 314 
ACTIVE-LEVEL FOUR CORNER AIR SUSPENSION
SYSTEM — IF EQUIPPED ...............................................319
Description.................................................................... 319
Air Suspension Modes ................................................322
Instrument Cluster Display Messages ......................323
Operation ......................................................................323
 ACTIVE-LEVEL FOUR CORNER AIR SUSPENSION
SYSTEM (REBEL MODELS ONLY) — IF
EQUIPPED .........................................................................325
Description.................................................................... 325
Air Suspension Modes ................................................328
Instrument Cluster Display Messages ......................329
Operation ......................................................................329
 AXLE LOCKER SYSTEM — IF EQUIPPED ..................331
 LIMITED-SLIP DIFFERENTIAL — IF EQUIPPED ...... 332
 POWER STEERING ..........................................................333
Electric Power Steering ..............................................333
 FUEL SAVER TECHNOLOGY 5.7L ENGINES ONLY —
IF EQUIPPED .....................................................................333
 STOP/START SYSTEM — IF EQUIPPED .....................334
Automatic Mode ..........................................................334
Possible Reasons The Engine Does Not
Autostop........................................................................334
To Start The Engine While In Autostop Mode ........335
2020_DT_1500_OM_US.book Page 6

14 INTRODUCTION
tion, that may or may not be applicable to your vehicle, will
be identified with the wording “If Equipped”. All data
contained in this publication are intended to help you use
your vehicle in the best possible way. FCA US LLC aims at a
constant improvement of the vehicles produced. For this
reason, it reserves the right to make changes to the model
described for technical and/or commercial reasons. For
further information, contact an authorized dealer.
When it comes to service, remember that your authorized
dealer knows your vehicle best, has factory-trained techni-
cians and genuine MOPAR® parts, and cares about your
satisfaction.
HOW TO USE THIS MANUAL
Essential Information
Consult the Table of Contents to determine which section
contains the information you desire.
Since the specification of your vehicle depends on the items
of equipment ordered, certain descriptions and illustrations
may differ from your vehicle's equipment.
The detailed Index at the back of this Owner's Manual
contains a complete listing of all subjects.
Symbols
Some vehicle components have colored labels whose
symbols indicate precautions to be observed when using this
component. Refer to “Warning Lights and Messages” in
“Getting To Know Your Instrument Panel” for further infor -
mation on the symbols used in your vehicle.
WARNINGS AND CAUTIONS
This Owner’s Manual contains WARNINGS against oper-
ating procedures that could result in a collision, bodily injury
and/or death. It also contains CAUTIONS against proce -
dures that could result in damage to your vehicle. If you do
not read this entire Owner’s Manual, you may miss
important information. Observe all Warnings and Cautions.
VAN CONVERSIONS/CAMPERS
The New Vehicle Limited Warranty does not apply to body
modifications or special equipment installed by van conver -
sion/camper manufacturers/body builders. US residents
refer to the Warranty Information book, Section 2.1.C. Cana -
dian residents refer to the “What Is Not Covered” section of
the Warranty Information book. Such equipment includes
video monitors, VCRs, heaters, stoves, refrigerators, etc. For
warranty coverage and service on these items, contact the
applicable manufacturer.
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GETTING TO KNOW YOUR VEHICLE 51
Heated Seats — If Equipped
On some models, the front and rear seats may be equipped
with heaters located in the seat cushions and seat backs.
Front Heated Seats
The heated seats control buttons are located on the center
instrument panel below the touchscreen, and are also located
within the climate or controls screen of the touchscreen.• Push the heated seat button once to turn the HI setting
on.
• Push the heated seat button a second time to turn the MED setting on.
• Push the heated seat button a third time to turn the LO setting on.
• Push the heated seat button a fourth time to turn the heating elements off.
NOTE:
• The engine must be running for the heated seats to operate.
• The level of heat selected will stay on until the operator changes it.
Vehicles Equipped With Remote Start
On models that are equipped with remote start, the driver’s
seat can be programmed to come on during a remote start.
This feature can be programmed through the Uconnect
system. Refer to “Uconnect Settings” in “Multimedia” for
further information.
WARNING!
• Persons who are unable to feel pain to the skin because of advanced age, chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaustion or other
physical condition must exercise care when using the
seat heater. It may cause burns even at low tempera -
tures, especially if used for long periods of time.
• Do not place anything on the seat or seatback that insu -
lates against heat, such as a blanket or cushion. This
may cause the seat heater to overheat. Sitting in a seat
that has been overheated could cause serious burns due
to the increased surface temperature of the seat.2
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58 GETTING TO KNOW YOUR VEHICLE
DRIVER ADJUSTABLE PEDALS — IF EQUIPPED
The adjustable pedals system is designed to allow a greater
range of driver comfort for steering wheel tilt and seat posi-
tion. This feature allows the brake and accelerator pedals to
move toward or away from the driver to provide improved
position with the steering wheel.
The adjustable pedal switch is located on the instrument
panel, below the headlight switch. Adjustable Pedals Switch
• The pedals can be adjusted with the ignition placed in the OFF position.
• The pedals cannot be adjusted when the vehicle is in
REVERSE or when the Speed Control System or Adaptive
Cruise Control systems are on. The following messages
will appear on vehicles equipped with an instrument
cluster display if the pedals are attempted to be adjusted
when the system is locked out: “Adjustable Pedal Disabled
— Cruise Control Engaged” or “Adjustable Pedal
Disabled — Vehicle In Reverse”.
WARNING!
• Persons who are unable to feel pain to the skin because of advanced age, chronic illness, diabetes, spinal cord
injury, medication, alcohol use, exhaustion, or other
physical conditions must exercise care when using the
steering wheel heater. It may cause burns even at low
temperatures, especially if used for long periods.
• Do not place anything on the steering wheel that insu -
lates against heat, such as a blanket or steering wheel
covers of any type and material. This may cause the
steering wheel heater to overheat.
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92 GETTING TO KNOW YOUR VEHICLE
NOTE:
• It is not necessary to move the temperature settings forcold or hot vehicles. The system automatically adjusts the
temperature, mode, and blower speed to provide comfort
as quickly as possible.
• The temperature can be displayed in U.S. or Metric units by selecting the U.S./Metric customer-programmable
feature. Refer to the “Uconnect Settings” in “Multimedia”
for further information.
To provide you with maximum comfort in the Automatic
mode during cold start-ups, the blower fan will remain on
low until the engine warms up. The blower will increase in
speed and transition into Auto mode.
Manual Operation Override
This system offers a full complement of manual override
features. The AUTO symbol in the front ATC display will be
turned off when the system is being used in the manual
mode.
Operating Tips
NOTE:
Refer to the chart at the end of this section for suggested
control settings for various weather conditions. Summer Operation
The engine cooling system must be protected with a
high-quality antifreeze coolant to provide proper corrosion
protection and to protect against engine overheating. OAT
coolant (conforming to MS.90032) is recommended.
Winter Operation
To ensure the best possible heater and defroster perfor
-
mance, make sure the engine cooling system is functioning
properly and the proper amount, type, and concentration of
coolant is used. Use of the Air Recirculation mode during
Winter months is not recommended, because it may cause
window fogging.
Vacation/Storage
Before you store your vehicle, or keep it out of service (i.e.,
vacation) for two weeks or more, run the air conditioning
system at idle for about five minutes, in fresh air with the
blower setting on high. This will ensure adequate system
lubrication to minimize the possibility of compressor
damage when the system is started again.
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SAFETY 263
(Continued)
Your vehicle may also be designed to perform any of these
other functions in response to the Enhanced Accident
Response System:
• Turn off the Fuel Filter Heater, Turn off the HVAC BlowerMotor, Close the HVAC Circulation Door
• Cut off battery power to the: • Engine
• Electric Motor (if equipped)
• Electric power steering
• Brake booster
• Electric park brake
• Automatic transmission gear selector
• Horn
• Front wiper
• Headlamp washer pump
NOTE:
After an accident, remember to cycle the ignition to the STOP
(OFF/LOCK) position and remove the key from the ignition
switch to avoid draining the battery. Carefully check the
vehicle for fuel leaks in the engine compartment and on the
ground near the engine compartment and fuel tank before
resetting the system and starting the engine. If there are no
fuel leaks or damage to the vehicle electrical devices (e.g. headlights) after an accident, reset the system by following
the procedure described below. If you have any doubt,
contact an authorized dealer.
Enhanced Accident Response System Reset Procedure
In order to reset the Enhanced Accident Response System
functions after an event, the ignition switch must be changed
from ignition START or ON/RUN to ignition OFF. Carefully
check the vehicle for fuel leaks in the engine compartment
and on the ground near the engine compartment and fuel
tank before resetting the system and starting the engine.
Maintaining Your Air Bag System
WARNING!
• Modifications to any part of the air bag system could cause it to fail when you need it. You could be injured
if the air bag system is not there to protect you. Do not
modify the components or wiring, including adding
any kind of badges or stickers to the steering wheel hub
trim cover or the upper passenger side of the instru -
ment panel. Do not modify the front bumper, vehicle
body structure, or add aftermarket side steps or
running boards.
4
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296 STARTING AND OPERATING
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 Or −30°C)
To ensure reliable starting at these temperatures, use of an
externally powered electric engine block heater (available
from your authorized dealer) is recommended.
After Starting
The idle speed is controlled automatically, and it will
decrease as the engine warms up.
ENGINE BLOCK HEATER — IF EQUIPPED
The engine block heater warms the engine, and permits
quicker starts in cold weather. Connect the cord to a stan-
dard 110-115 Volt AC electrical outlet with a grounded,
three-wire extension cord.
The engine block heater cord is routed under the hood on the
passenger side of the vehicle near the right head lamp
assembly. It is located between the front grill and the radi -
ator, but underneath the black upper seal.
• If the vehicle has a discharged battery, booster cables
may be used to obtain a start from a booster battery or
the battery in another vehicle. This type of start can be
dangerous if done improperly. Refer to “Jump Starting
Procedure” in “In Case Of Emergency” for further
information.
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! (Continued)
WARNING!
Remember to disconnect the engine block heater cord
before driving. Damage to the 110-115 Volt electrical
cord could cause electrocution.
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IN CASE OF EMERGENCY 447
F30––Spare
F31 ––Spare
F32 20 Amp Blue –ECM / PCM
F33 30 Amp Pink –Brake Vacuum Pump
F34 ––Spare
F35 –10 Amp Red PCM / ECM / Power Pack Unit (PPU) Motor
Generator Unit (MGU) Wake Up / EPS / Active
Tuned Mass Module (ATMM) / ESP
F36 ––Spare
F37 –5 Amp Tan R / S Output to iPDC
F38 –10 Amp Red DTCM / Active CL TEMP VLV
F39 ––Spare
F40 40 Amp Green –Starter
F41 –10 Amp Red IRCAM Heaters
F42 ––Spare
F43 –20 Amp Yellow MGU Coolant Pump – If Equipped
F44 ––Spare
F45 ––Spare
F46 30 Amp Pink –Fuel Heater – If Equipped
F47 30 Amp Pink –Rear Defroster
Cavity
Cartridge Fuse Micro Fuse Description
6
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IN CASE OF EMERGENCY 449
Internal Power Distribution Center
The Power Distribution Center is located under the drivers
side instrument panel. This center contains cartridge fuses,
micro fuses, relays, and circuit breakers. A description of
each fuse and component may be stamped on the inside
cover, otherwise the cavity number of each fuse is stamped
on the inside cover that corresponds to the following chart.
CAUTION!
• When installing the power distribution center cover, it is important to ensure the cover is properly positioned
and fully latched. Failure to do so may allow water to
get into the power distribution center and possibly
result in an electrical system failure.
• When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use
of a fuse with a rating other than indicated may result
in a dangerous electrical system overload. If a properly
rated fuse continues to blow, it indicates a problem in
the circuit that must be corrected.
Cavity Cartridge Fuse Micro Fuse Description
F01 30 Amp Pink –Trailer Tow Receptacle
F03 –20 Amp Yellow Module Seat Heater Front (Pass)
F04 ––Spare
F05 –20 Amp Yellow Module PPU Cooling Fan
F06 40 Amp Green –Mod CBC 4 Exterior Light 2
F07 40 Amp Green –Mod CBC 3 PWR Locks
F08 ––Spare
F09 ––Spare
F10 40 Amp Green –HVAC Blower Motor
6
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450 IN CASE OF EMERGENCY
F11–5 Amp TanOutput to Under-hood Power Distribution
Center (UPDC) Run Coil
F12 –25 Amp Clear Mod Audio Amplifier / Active Noise
Cancellation / SW Inverter
F13 –20 Amp Yellow Mod Seat Heater Front (Driver)
F14 –15 Amp Blue Mod Seat Heater Front (Steering Wheel)
F15 ––Spare
F16 ––Spare
F17 –20 Amp Yellow LT Spot Lamp
F18 30 Amp Pink –Motor Sunshade Sunroof
F19 ––Spare
F20 –20 Amp Yellow Comfort Rear Seat Module (CRSM) (Heat Rear
RT)
F21 ––Spare
F22 ––Spare
F23 ––Spare
F24 –15 Amp Blue Mod RF Hub / Mod Ignition / Mod Cluster
F25 40 Amp Green –Mod Integrated Trailer Brake
F26 –15 Amp Blue Mod Cluster CCN / Mod Cyber Security
F27 –5 Amp Tan Mod Cluster CCN / Mod SGW
Cavity
Cartridge Fuse Micro Fuse Description
2020_DT_1500_OM_US.book Page 450