Defrost RAM 1500 2023 User Guide

GETTING TO KNOW YOUR INSTRUMENT PANEL107
NOTE:
The charging system is independent from load reduc -
tion. The charging system performs a diagnostic on the
charging system continuously.
 If the Battery Charge Warning Light is on it may indicate
a problem with the charging system
Úpage 108.
The electrical loads that may be switched off (if equipped),
and vehicle functions which can be affected by load
reduction:
 Heated Seats / Vented Seats / Heated Wheel
 Rear Defroster And Heated Mirrors
 HVAC System
 115 Volts AC Power Inverter System
 Audio and Telematics System
Loss of the battery charge may indicate one or more of the
following conditions:
 The charging system cannot deliver enough electrical
power to the vehicle system because the electrical
loads are larger than the capability of charging system.
The charging system is still functioning properly.
 Turning on all possible vehicle electrical loads
(e.g. HVAC to max settings, exterior and interior lights,
overloaded power outlets +12 Volts, 115 Volts AC, USB
ports) during certain driving conditions (city driving,
towing, frequent stopping). 
Installing options like additional lights, upfitter
electrical accessories, audio systems, alarms and
similar devices.
 Unusual driving cycles (short trips separated by long
parking periods).
 The vehicle was parked for an extended period of time
(weeks, months).
 The battery was recently replaced and was not charged
completely.
 The battery was discharged by an electrical load left on
when the vehicle was parked.
 The battery was used for an extended period with the
engine not running to supply radio, lights, chargers,
+12 Volt portable appliances like vacuum cleaners,
game consoles and similar devices.
What to do when an electrical load reduction action
message is present (“Battery Saver On” or “Battery Saver
Mode”)
During a trip:
 Reduce power to unnecessary loads if possible:
 Turn off redundant lights (interior or exterior).
 Check what may be plugged in to power outlets
+12 Volts, 115 Volts AC, USB ports.
 Check HVAC settings (blower, temperature).
 Check the audio settings (volume). After a trip:

Check if any aftermarket equipment was installed
(additional lights, upfitter electrical accessories, audio
systems, alarms) and review specifications if any
(load and Ignition Off Draw currents).
 Evaluate the latest driving cycles (distance, driving
time and parking time).
 The vehicle should have service performed if the
message is still present during consecutive trips and
the evaluation of the vehicle and driving pattern did not
help to identify the cause.
WARNING LIGHTS AND MESSAGES
The warning/indicator lights will illuminate in the
instrument panel together with a dedicated message
and/or acoustic signal when applicable. These indications
are indicative and precautionary and as such must not be
considered as exhaustive and/or alternative to the
information contained in the Owner’s Manual, which you
are advised to read carefully in all cases. Always refer to
the information in this chapter in the event of a failure
indication. All active telltales will display first if applicable.
The system check menu may appear different based upon
equipment options and current vehicle status. Some
telltales are optional and may not appear.
3

23_DT_OM_EN_USC_t.book Page 107

142STARTING AND OPERATING
To Activate The Autostop Mode, The Following Must Occur:

1. The system must be in STOP/START READY state. A
STOP/START READY message is displayed in the
instrument cluster within the Stop/Start section

Ú
page 98.

2. The vehicle must be decelerating and likely coming to a complete stop.
3. The transmission gear selector must be in DRIVE and the brake pedal pressed.
The engine will shut down, the tachometer will move to the
zero position and the Stop/Start telltale will illuminate
indicating you are in an Autostop. While in an Autostop,
the Climate Controls system may automatically adjust
airflow to maintain cabin comfort. Customer settings will
be maintained upon return to an engine running condition.
POSSIBLE REASONS THE ENGINE DOES
N
OT AUTOSTOP
Prior to engine shut down, the system will check many
safety and comfort conditions to see if they are fulfilled.
In following situations, the engine will not Autostop:
 Driver’s seat belt is not buckled
 Driver’s door is not closed
 The vehicle is on a steep grade
 Cabin heating or cooling is in process and an accept -
able cabin temperature has not been achieved 
HVAC is set to full defrost mode at a high blower speed
 Engine has not reached normal operating temperature
 Engine or exhaust temperature is too high
 The battery is charging
 The transmission is not in DRIVE
 Hood is open
 Transfer case is in 4WD LOW
 TOW/HAUL mode is selected
 Accelerator pedal input
 Excessive 12 Volt loads
 Brake application is adequate to obtain and maintain
a stop
It may be possible to operate the vehicle several
consecutive times in extreme conditions and not meet all
criteria to enable an Autostop state.TO START THE ENGINE WHILE IN
A
UTOSTOP MODE
While in DRIVE, the engine will start when the brake pedal
is released or the accelerator pedal is pressed and the
transmission will automatically reengage upon engine
restart. Conditions That Will Cause The Engine To Start
Automatically While In Autostop Mode
The engine will start automatically when:

The transmission selector is moved from DRIVE to
REVERSE, NEUTRAL, or PARK
 To maintain cabin temperature near the HVAC settings
 HVAC is set to full defrost mode
 12 Volt demand requires engine restart
 Stop/Start OFF switch is pushed
 Transfer case is in 4WD LOW
 The emissions system override is present
 A Stop/Start system error is present
Conditions That Force An Automatic Shift To Park While In
Autostop Mode
The engine will not start automatically and the
transmission will be placed in PARK if:
 The driver door is open and brake pedal released
 The driver door is open and the driver seat belt is
unbuckled
 The engine hood has been opened
 A Stop/Start system error is present
The engine may then be restarted by moving the
transmission shift selector out of PARK (e.g., to DRIVE) or,
in some cases, only by a key start. The instrument cluster
will display a “SHIFT OUT OF PARK” message, or a
“STOP/START KEY START REQUIRED” message, to
indicate which action is required
Úpage 98.

23_DT_OM_EN_USC_t.book Page 142

SAFETY311
SAFETY TIPS
TRANSPORTING PASSENGERS
NEVER TRANSPORT PASSENGERS IN THE CARGO AREA.
TRANSPORTING PETS
Air Bags deploying in the front seat could harm your pet.
An unrestrained pet will be thrown about and possibly
injured, or injure a passenger during panic braking or in a
collision.
Pets should be restrained in the rear seat (if equipped)
in pet harnesses or pet carriers that are secured by
seat belts.
CONNECTED VEHICLES
Privacy of any wireless and wired communications cannot
be assured. Third parties may unlawfully intercept
information and private communications without your
consent. For further information, refer to “Data Collection
& Privacy” in your Uconnect Radio Instruction Manual or
“Onboard Diagnostic System (OBD II) Cybersecurity”
Úpage 116.
SAFETY CHECKS YOU SHOULD MAKE
I
NSIDE THE VEHICLE
Seat Belts
Inspect the seat belt system periodically, checking for
cuts, frays, and loose parts. Damaged parts must be
replaced immediately. Do not disassemble or modify the
system. If your vehicle is involved in a collision, or if you have
questions regarding the seat belt or retractor conditions,
take your vehicle to an authorized FCA dealer or
authorized FCA Certified Collision Care Program facility for
inspection.
Air Bag Warning Light
The Air Bag Warning Light will turn on for four to
eight seconds as a bulb check when the
ignition switch is first placed in the ON/RUN
position. If the light is either not on during
starting, stays on, or turns on while driving, have the
system inspected at an authorized dealer as soon as
possible. After the bulb check, this light will illuminate with
a single chime when a fault with the Air Bag System has
been detected. It will stay on until the fault is removed.
If the light comes on intermittently or remains on while
driving, have an authorized dealer service the vehicle
immediately.
See
Úpage 282 for further information.
Defroster
Check operation by selecting the defrost mode and place
the blower control on high speed. You should be able to
feel the air directed against the windshield. See an
authorized dealer for service if your defroster is
inoperable.
WARNING!
 Do not leave children or animals inside parked vehi -
cles in hot weather. Interior heat buildup may cause
serious injury or death.
 It is extremely dangerous to ride in a cargo area,
inside or outside of a vehicle. In a collision, people
riding in these areas are more likely to be seriously
injured or killed.
 Do not allow people to ride in any area of your vehicle
that is not equipped with seats and seat belts.
 Be sure everyone in your vehicle is in a seat and
using a seat belt properly.
WARNING!
It is not possible to know or to predict all of the possible
outcomes if your vehicle’s systems are breached. It may
be possible that vehicle systems, including safety
related systems, could be impaired or a loss of vehicle
control could occur that may result in an accident
involving serious injury or death.
6

23_DT_OM_EN_USC_t.book Page 311

IN CASE OF EMERGENCY331
Proper towing or lifting equipment is required to prevent
damage to your vehicle. Use only tow bars and other
equipment designed for this purpose, following equipment
per FCA US LLC instructions. Use of safety chains is
mandatory. Attach a tow bar or other towing device to
main structural members of the vehicle, not to fascia/
bumpers or associated brackets. State and local laws
regarding vehicles under tow must be observed.
If you must use the accessories (wipers, defrosters, etc.)
while being towed, the ignition must be in the ON/RUN
mode, not the ACC mode.
If the key fob is unavailable or the vehicle's battery is
discharged, find Instructions on shifting the transmission
out of PARK in order to move the vehicle
Úpage 328.
TWO-WHEEL DRIVE MODELS
FCA US LLC recommends towing your vehicle with all four
wheels OFF the ground using a flatbed.
If flatbed equipment is not available, and the transmission
is operable, the vehicle may be towed (with front wheels
on the ground) under the following conditions:
 The transmission must be in NEUTRAL (N). Instructions
on shifting the transmission to NEUTRAL (N) when the
engine is OFF
Úpage 328.
 The towing speed must not exceed 30 mph (48 km/h).
 The towing distance must not exceed 30 miles
(48 km).
If the transmission is not operable, or the vehicle must be
towed faster than 30 mph (48 km/h) and farther than 30 miles (48 km), tow with the rear wheels OFF the
ground. An acceptable method to tow the vehicle on a
flatbed are as follows:
 Using a suitable steering wheel stabilizer to hold the
front wheels in the straight position with the rear
wheels raised and the front wheels ON the ground.
FOUR-WHEEL DRIVE MODELS
FCA US LLC recommends towing with all wheels OFF the
ground.
CAUTION!
 Do not use sling type equipment when towing.
Vehicle damage may occur.
 When securing the vehicle to a flatbed truck, do not
attach to front or rear suspension components.
Damage to your vehicle may result from improper
towing.
CAUTION!
Towing this vehicle in violation of the approved
requirements can cause severe transmission damage.
Damage from improper towing is not covered under the
New Vehicle Limited Warranty.
CAUTION!
Front or rear wheel lifts must not be used (if the
remaining wheels are on the ground). Internal
damage to the transmission or transfer case will
occur if a front or rear wheel lift is used when towing.
 Towing this vehicle in violation of the approved
requirements can cause severe transmission and/or
transfer case damage. Damage from improper
towing is not covered under the New Vehicle
Limited Warranty.
7

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340SERVICING AND MAINTENANCE
CHECKING OIL LEVEL
To ensure proper engine lubrication, the engine oil must
be maintained at the correct level. Check the oil level at
regular intervals, such as every fuel stop. The best time to
check the engine oil level is about five minutes after a fully
warmed up engine is shut off.
Checking the oil while the vehicle is on level ground will
improve the accuracy of the oil level readings.
There are four possible dipstick types:
Crosshatched zone.
 Crosshatched zone marked SAFE.
 Crosshatched zone marked with MIN at the low end of
the range and MAX at the high end of the range.
 Crosshatched zone marked with dimples at the MIN
and the MAX ends of the range.
NOTE:Always maintain the oil level within the crosshatch
markings on the dipstick.
Adding 1 qt (1.0 L) of oil when the reading is at the low end
of the dipstick range will raise the oil level to the high end
of the range marking.
ADDING WASHER FLUID
The fluid reservoir is located under the hood and the fluid
level should be checked at regular intervals. Fill the
reservoir with windshield washer solvent only (not radiator
antifreeze). When refilling the washer fluid reservoir, take
some washer fluid and apply it to a cloth or towel and wipe
the wiper blades clean. This will help blade performance.
To prevent freeze-up of your windshield washer system in
cold weather, select a solution or mixture that meets or
exceeds the temperature range of your climate. This rating
information can be found on most washer fluid containers.
After the engine has warmed up, operate the defroster for
a few minutes to reduce the possibility of smearing or
freezing the fluid on the cold windshield. Windshield
washer solution used with water as directed on the
container, aids cleaning action, reduces the freezing point
to avoid line clogging, and is not harmful to paint or trim.
MAINTENANCE-FREE BATTERY
Your vehicle is equipped with a maintenance-free battery.
You will never have to add water, and periodic
maintenance is not required.
CAUTION!
Overfilling or underfilling the crankcase will cause oil
aeration or loss of oil pressure. This could damage
your engine.
WARNING!
Commercially available windshield washer solvents are
flammable. They could ignite and burn you. Care must
be exercised when filling or working around the washer
solution.
WARNING!
Battery fluid is a corrosive acid solution and can burn
or even blind you. Do not allow battery fluid to
contact your eyes, skin, or clothing. Do not lean over
a battery when attaching clamps. If acid splashes in
eyes or on skin, flush the area immediately with large
amounts of water
Úpage 325.
 Battery gas is flammable and explosive. Keep flame
or sparks away from the battery. Do not use a
booster battery or any other booster source with an
output greater than 12 Volts. Do not allow cable
clamps to touch each other.
 Battery posts, terminals, and related accessories
contain lead and lead compounds. Wash hands after
handling.

23_DT_OM_EN_USC_t.book Page 340

SERVICING AND MAINTENANCE359
F4040 Amp Green –Starter
F41 –10 Amp RedIRCAM Heaters
F42 20 Amp Blue –AUX SWITCH #5 *
F43 –20 Amp Yellow MGU Coolant Pump / ADCM *
F44 –10 Amp RedTrailer Camera *
F45 –10 Amp RedADCM *
F46 30 Amp Pink –Fuel Heater *
F47 30 Amp Pink –Rear Defroster
F48 ––Spare *
F49 30 Amp Pink –Htr Ctrl *
F50 20 Amp Blue –AUX SWITCH #6 *
F51 25 Amp White –FUEL PUMP MOTOR #1 *
F52 ––Spare *
F53 –10 Amp RedSupply / Purging Pump *
F54 –15 Amp Blue
PCM *
10 Amp Red Vapor Blocking Valve *
F55 –15 Amp BlueRT HID Headlamp
F56 ––Spare *
F57 –20 Amp Yellow Horn
F58 25 Amp White –FUEL PUMP MOTOR #2 *
F59 –25 Amp ClearInjectors / IGN Coil / Glow Plug Module *
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped
8

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364SERVICING AND MAINTENANCE
Circuit BreakersF58
20 Amp Blue –Direct Battery Feed *
F60 50 Amp Red –Mod Inverter *
F61 ––Spare
F62 A&B –10 Amp RedITBM / Mod Occupant Class / Mod IAIR Suspension / Mod HVAC / Snsr
In car Temp / Integrated Radar Camera Mod (IRCM) / Humidity Rain &
Light Sensor (HRLS) / Parktronics System Mod (PTS) / Gateway Can-C
Trailer TPM Mod
F63 ––Spare
F64 ––Spare
F65 –10 Amp RedMod ORC
F66 –10 Amp RedRun - Accessory Feed
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped
Cavity Circuit Breaker Description
CB125 AmpDriver Window SW Rear PWR Windows / Overhead SW Rear
Defrost
CB2 25 AmpDriver PWR Seat / Driver Seat Memory Mod
CB3 25 AmpPassenger Power Seat / Passenger Seat Memory Mod

23_DT_OM_EN_USC_t.book Page 364

SERVICING AND MAINTENANCE391
Cleaning Plastic Instrument Cluster
Lenses
The lenses in front of the instruments in this vehicle are
molded in clear plastic. When cleaning the lenses, care
must be taken to avoid scratching the plastic.
Clean with a wet soft cloth. A mild soap solution may be
used, but do not use high alcohol content or abrasive
cleaners. If soap is used, wipe clean with a clean damp
cloth. Dry with a soft cloth.
LEATHER SURFACES
Mopar® Total Clean is specifically recommended for
leather upholstery.
Your leather upholstery can be best preserved by regular
cleaning with a damp soft cloth. Small particles of dirt can
act as an abrasive and damage the leather upholstery and
should be removed promptly with a damp cloth. Stubborn
soils can be removed easily with a soft cloth and Mopar®
Total Clean. Care should be taken to avoid soaking your
leather upholstery with any liquid. Please do not use
polishes, oils, cleaning fluids, solvents, detergents, or
ammonia-based cleaners to clean your leather upholstery.
NOTE:If equipped with light colored leather, it tends to show any
foreign material, dirt, and fabric dye transfer more so than
darker colors. The leather is designed for easy cleaning,
and the manufacturer recommends Mopar® Total Clean
leather cleaner applied on a cloth to clean the leather
seats as needed.GLASS SURFACES
All glass surfaces should be cleaned on a regular basis
with Mopar® Glass Cleaner, or any commercial
household-type glass cleaner. Never use an abrasive type
cleaner. Use caution when cleaning the inside rear
window equipped with electric defrosters or windows
equipped with radio antennas. Do not use scrapers or
other sharp instruments that may scratch the elements.
When cleaning the rearview mirror, spray cleaner on the
towel or cloth that you are using. Do not spray cleaner
directly on the mirror.
CAUTION!
Do not use alcohol and alcohol-based and/or
ketone-based cleaning products to clean leather
upholstery, as damage to the upholstery may result.
8

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404
Brake Fluid .......................................................... 352, 397
Brake System ...................................................... 352, 392
Fluid Check.............................................................. 352
Master Cylinder ....................................................... 352
Parking .................................................................... 122
Warning Light .......................................................... 108
Brake/Transmission Interlock..................................... 125
Bulb Replacement ....................................................... 365
Bulbs, Light.......................................................... 313
, 365
CCamera ......................................................................... 163
Camera, AUX................................................................. 168
Camera, Rear ............................................................... 163
Camera, Surround View ............................................... 165
Camera, Trailer 360..................................................... 168
Capacities, Fuel............................................................ 395
Caps, Filler Oil (Engine) .............................................................. 337
Radiator (Coolant Pressure)................................... 350
Car Washes .................................................................. 388
Carbon Monoxide Warning .......................................... 313
Care And Maintenance ................................................ 388
Cargo Light ...................................................................... 49
CD.................................................................................. 226
Cellular Phone .............................................................. 252
Center High Mounted Stop Light................................. 369
Center Seat Storage Compartment ...............................60
Chart, Tire Sizing .......................................................... 371
Check Engine Light (Malfunction Indicator Light) ...... 117
Checking Your Vehicle For Safety ............................... 311
Checks, Safety.............................................................. 311
Child Restraint.............................................................. 298 Child Restraints
Booster Seats .......................................................... 301
Child Seat Installation ................................... 306
, 308
How To Stow An unused ALR Seat Belt .................305 Infant And Child Restraints ..................................... 300
Locating The LATCH Anchorages............................ 304
Lower Anchors And Tethers For Children............... 302
Older Children And Child Restraints....................... 300
Seating Positions ..................................................... 301
Clean Air Gasoline ........................................................ 393
Cleaning Wheels .....................................................................383
Climate Control ............................................................... 54 Automatic ................................................................... 54
Manual ....................................................................... 56
Compact Spare Tire ...................................................... 381
Connected Services ................ 236
, 237, 238, 239, 248
Contract, Service .......................................................... 400
Controls ......................................................................... 218
Cooling Pressure Cap (Radiator Cap) ..........................350
Cooling System ............................................................. 349 Adding Coolant (Antifreeze) ....................................350
Coolant Level ................................................. 349
, 351
Cooling Capacity ...................................................... 395
Disposal Of Used Coolant ....................................... 351 Drain, Flush, And Refill............................................349
Inspection ................................................................ 351
Points To Remember............................................... 352
Pressure Cap ...........................................................350
Radiator Cap ............................................................350Selection Of Coolant (Antifreeze) ........ 350
, 395, 396
Corrosion Protection ..................................................... 388
Cruise Control Accel/Decel.............................................................. 144 Cancel ...................................................................... 145
Resume.................................................................... 144
Cruise Control (Speed Control) ........................... 143
, 145
Cruise Light ..........................................................115, 116
Customer Assistance ................................................... 398
Cybersecurity ................................................................ 191
DDaytime Running Lights ................................................. 47 Dealer Service .............................................................. 341
Defroster, Windshield .................................... 54
, 56, 311
Deleting A Phone .......................................................... 231
Diagnostic System, Onboard ....................................... 116
Differential, Limited Slip .............................................. 140
Dimmer Control Switch .................................................. 51
Disable Vehicle Towing ................................................ 330
Disc Drive ...................................................................... 226
Disconnecting ............................................................... 231
Disposal Antifreeze (Engine Coolant) .................................... 351
Disturb........................................................................... 234
Door Ajar .............................................................. 108
, 110
Door Ajar Light ..................................................... 108, 110
Door Locks Automatic .................................................................. 27
Doors ............................................................................... 24
Driver Memory Presets ................................................ 224
Driver’s Seat Back Tilt .................................................... 30
Driving Through Flowing, Rising, Or Shallow Standing Water .................................................. 189
Driving Tips ................................................................... 189
Dual Rear Wheels......................................................... 392

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412
Overview .................................................................. 228
Pair (Link) Uconnect Phone To A Mobile Phone ... 230
Phonebook Download ............................................ 232
Place/Retrieve A Call From Hold ........................... 234Power-Up ................................................................. 236
Recent Calls ............................................................ 233
Redial....................................................................... 234To Remove A Favorite............................................. 232
Toggling Between Calls .......................................... 234Touch-Tone Number Entry...................................... 233
Transfer Call To And From Mobile Phone.............. 235Voice Command ...................................................... 235
Uconnect Settings Customer Programmable Features ................ 25
, 192
Passive Entry Programming ...................................... 25
Uconnect System ......................................................... 215
Uniform Tire Quality Grades ........................................ 386
Universal Garage Door Opener (HomeLink®) —
If Equipped

b
................................................................43
Unleaded Gasoline....................................................... 393
Untwisting Procedure, Seat Belt ................................. 285
USB ..................................................................................65
Utility Rails, Rear Cargo Area .........................................80
UV-C Light ........................................................................69
VVehicle Finder ..................................................... 245, 249
Vehicle Health Alert ...................................................... 247
Vehicle Health Report...................................................246
Vehicle Identification Number (VIN) ............................ 392
Vehicle Loading................................................... 172
, 374
Vehicle Maintenance ....................................................341
Vehicle Modifications/Alterations ................................. 11
Vehicle Notifications ..................................................... 247
Vehicle Settings ............................................................191
Vehicle Storage ......................................................59
, 387
Ventilated Seats ............................................................. 34
Voice Command.............................................................. 36
Voice Recognition System (VR) ...................................... 36
WWarranty Information ................................................... 400
Washers, Windshield ................................................... 340
Washing Vehicle ........................................................... 388
Water Driving Through ....................................................... 189
Wheel And Wheel Tire Care ......................................... 383
Wheel And Wheel Tire Trim.......................................... 383
Wi-Fi............................................................................... 245
Wind Buffeting ................................................................ 72
Window Fogging ............................................................. 59
Window Lockout Switch ................................................. 71 Windows.......................................................................... 70 Power ......................................................................... 70
Rear Sliding ............................................................... 71
Reset Auto-Up............................................................ 71
Windshield Defroster ................................................... 311
Windshield Washers ............................................. 52
, 340
Fluid ......................................................................... 340
Windshield Wiper Blades ............................................. 347
Windshield Wipers.......................................................... 52
Wipers Blade Replacement ......................................... 347
Wipers, Rain Sensitive ................................................... 53
Wireless Charging Pad ................................................... 68

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