brake light Ram 3500 2020 Repair Manual

452
TECHNICAL SPECIFICATIONS
IDENTIFICATION DATA
VEHICLE IDENTIFICATION NUMBER
The Vehicle Identification Number (VIN) is found
on the left front corner of the instrument panel,
visible through the windshield.
Vehicle Identification Number

NOTE:
It is illegal to remove or alter the VIN.
BRAKE SYSTEM
If power assist is lost for any reason (for
example, repeated brake applications with the
engine off), the brakes will still function. However, you will experience a substantial
increase in braking effort to stop the vehicle.
If either the front or rear hydraulic system loses
normal braking capability, the remaining
system will still function with some loss of
overall braking effectiveness. This will be
evident by increased pedal travel during
application, greater pedal force required to slow
or stop, and activation of the “Brake Warning
Light” and/or the “ABS Warning Light” during
brake use.
HYDRAULIC BRAKE ASSIST — IF
E
QUIPPED
The brake system power assist is provided by a
hydro-boost unit which shares fluid with the
power steering system. You may experience
some clicking or hissing noises from the
hydro-boost system during hard braking
conditions.
NOTE:
Under cold temperatures, pedal effort will be
higher than normal until the power steering fluid
reaches operating temperature.
WHEEL AND TIRE TORQUE SPECIFICATIONS
Proper lug nut/bolt torque is very important to
ensure that the wheel is properly mounted to
the vehicle. Any time a wheel has been removed
and reinstalled on the vehicle, the lug nuts/
bolts should be torqued using a properly
calibrated torque wrench using a high quality six
sided (hex) deep wall socket.
TORQUE SPECIFICATIONS
**Use only authorized dealer recommended
lug nuts/bolts and clean or remove any dirt or
oil before tightening.
Lug Nut/
Bolt
Torque Lug Nut/
Bolt Type **Lug
Nut/Bolt
SizeLug Nut/
Bolt
Socket
Size
130
Ft-Lbs
(176 N·m) Cone
M14 x
1.5022 mm
140
Ft-Lbs
(190 N·m) Flanged

20_DJD2_OM_EN_USC_t.book Page 452

468MULTIMEDIA
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 Owner’s
Manual Supplement or “Onboard Diagnostic
System (OBD II) Cybersecurity” in “Getting To
Know Your Instrument Panel”.
UCONNECT SETTINGS
The Uconnect system uses a combination of
buttons on the touchscreen and buttons on the
faceplate located on the center of the
instrument panel. These buttons allow you to
access and change the customer
programmable features. Many features can
vary by vehicle.
Buttons on the faceplate are located below
and/or beside the Uconnect system in the
center of the instrument panel. In addition,
there is a Scroll/Enter control knob located on
the right side. Turn the control knob to scroll
through menus and change settings. Push the
center of the control knob one or more times to
select or change a setting. Your Uconnect system may also have Screen
Off and Mute buttons on the faceplate.
Push the Screen Off button on the faceplate to
turn off the Uconnect screen. Push the button
again or tap the screen to turn the screen on.
Push the Back Arrow button to exit out of a
Menu or certain option on the Uconnect system.
UCONNECT 3 SETTINGS

Uconnect 3 With 5-inch Display Buttons On The
Touchscreen And Buttons On The Faceplate
Push the SETTINGS button, then press the
Settings button on the touchscreen (if equipped)
to display the settings menu screen. In this mode the Uconnect system allows you to access
programmable features that may be equipped
such as Display, Units, Voice, Clock, Safety &
Driving Assistance, Lights, Doors & Locks, Power
Side Steps, Auto-On Comfort (if equipped),
Engine Off Options, Suspension, Trailer Brake,
Audio, Phone/Bluetooth®, SiriusXM® Setup (if
equipped), Restore Settings, Clear Personal
Data, and System Information.

NOTE:
Only one category may be selected at a time.
When making a selection, press the button on
the touchscreen to enter the desired menu.
Once in the desired menu, press and release
the preferred setting until the button is
highlighted. Once the setting is complete, either
press the Back Arrow or the Done button on the
touchscreen or push the Back button on the
faceplate to return to the previous menu.
Pressing the Up or Down Arrow buttons on the
touchscreen on the right side of the screen will
allow you to toggle up or down through the list
of available settings.
NOTE:
All settings should be changed with the ignition
in the ON/RUN position.
1 — Uconnect Buttons On The Touchscreen
2 — Uconnect Buttons On The Faceplate

20_DJD2_OM_EN_USC_t.book Page 468

480MULTIMEDIA
Trailer Brake — If Equipped
After pressing the Trailer Brake button on the touchscreen, the following settings will be available:
Audio
After pressing the Audio button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Trailer SelectTrailer 1Trailer 2Trailer 3Trailer 4
Trailer Brake Type Light ElectricHeavy Electric Light EOHHeavy EOH
Trailer Name List of Trailer Names Available
NOTE:
You can select and personalize your trailer name depending on the type of trailer you are hauling. Select the trailer name from the following list: trailer,
boat, car, cargo, dump, equipment, flatbed, gooseneck, horse, livestock, motorcycle, snowmobile, travel, utility, and 5th wheel.
Setting Name Selectable Options
Balance/FadeFrontBack LeftRight
NOTE:
The “Balance/Fade” feature allows you to adjust the Balance and Fade settings. Press and drag the Speaker icon or use the arrows to adjust, tap the
C icon to readjust to the center. Equalizer + –
NOTE:
When in the “Equalizer” display you may adjust the Bass, Mid and Treble settings. Speed Adjusted Volume Off123
NOTE:
The “Speed Adjusted Volume” feature increases or decreases volume relative to vehicle speed.

20_DJD2_OM_EN_USC_t.book Page 480

MULTIMEDIA505
UCONNECT 4C NAV WITH 12-INCH
D
ISPLAY SETTINGS

Uconnect 4C NAV With 12-inch Display Buttons On The
Touchscreen And Buttons On The Faceplate
Press the Settings button on the touchscreen to
display the settings menu screen. In this mode,
the Uconnect system allows you to access
programmable features that may be equipped
such as Language, Display, Units, Voice
Settings, Clock & Date, Camera, Safety &
Driving Assistance, Mirrors and Wipers, Lights,
Doors & Locks, Auto-On Comfort & Remote Start
(if equipped), Engine Off Options, Suspension,
Trailer Brake, Audio Settings, Bluetooth®,
SiriusXM® Setup (if equipped), and Reset.
When making a selection, press the button on
the touchscreen to enter the desired menu.
Once in the desired menu, press and release
the preferred setting until a check mark
appears next to the setting, showing that setting
has been selected. Once the setting is
complete, press the Back Arrow button on the
touchscreen to return to the previous menu or
press the X button on the touchscreen to close
out of the settings screen. Pressing the Up or
Down Arrow buttons on the touchscreen on the
right side of the screen will allow you to toggle
up or down through the list of available settings.
NOTE:
All settings should be changed with the ignition
in the ON/RUN position.
1 — Uconnect Buttons On The Touchscreen
2 — Uconnect Buttons On The Faceplate
9

20_DJD2_OM_EN_USC_t.book Page 505

MULTIMEDIA511
Safety & Driving Assistance
After pressing the Safety & Driving Assistance button on the touchscreen, the following settings will be available:
Setting Name Selectable Options
Forward Collision Warning — If
Equipped Off
Warning OnlyWarning & Active Braking
NOTE:
Sounds an audible warning for the driver to slow the vehicle in case of collision or sounds an audible warning and applies brakes. Forward Collision Warning Sensitivity — If Equipped Near
Med Far
NOTE:
Sets the distance in which a Forward Collision Warning occurs. Front ParkSense Volume LowMed High
Rear ParkSense Volume LowMed High
Blind Spot Alert OffLightsLights + Chime
Power Side Step — If Equipped Auto Store
Hill Start Assist — If Equipped On Off
Tire Fill Assist — If Equipped On Off
9

20_DJD2_OM_EN_USC_t.book Page 511

518MULTIMEDIA
Trailer Brake
After pressing the Trailer Brake button on the touchscreen, the following settings will be available:
Once selecting the specific trailer, the following programmable options become available:
Setting Name Selectable Options
TrailerTrailer 1 Trailer 2Trailer 3Trailer 4
Setting Name Selectable Options
Use This TrailerOn Off
Braking Light ElectricLight Electric
Over Hydraulic Heavy ElectricHeavy Electric
Over Hydraulic
Tire Pressure Are you sure you want to delete the Tire Pressure Settings for Trailer 1?
Yes No
Number Of Axles
+ -
Number Of Tires
+ -
NOTE:
After pressing Next, the Tire Pressure screen appears. The default for this option is 50 PSI (344 kPa), however the range is selectable anywhere
between 25–125 PSI (172–862 kPa). Once PSI (kPa) is programmed the pairing screen appears. Tire sensors must be paired in order shown. Starting
with Tire 1, deflate tire by 5 PSI (34 kPa) and wait for a horn chirp. Repeat process until complete. Do not exit the pairing screen until process is
complete. If pairing has been unsuccessful, a double horn chirp will sound, and a prompt on the touchscreen will allow you to retry the procedure;
“Retry” will only appear when setup fails. Each tire must be successfully paired during a single pairing process to receive the success screen.

20_DJD2_OM_EN_USC_t.book Page 518

552
INDEX
A
Adaptive Cruise Control (ACC)
(Cruise Control)
.............................................. 282Adding Engine Coolant (Antifreeze)............... 418Adding Fuel.......................................... 319, 320Additives, Fuel............................................... 454AdjustDown........................................................... 35Forward....................................................... 35Rearward..................................................... 35Up................................................................ 35Adjustable Pedals............................................ 42Air BagAir Bag Operation...................................... 185Air Bag Warning Light................................ 182Enhanced Accident Response......... 189, 384Event Data Recorder (EDR)....................... 384If Deployment Occurs................................ 188Knee Impact Bolsters................................ 185Maintaining Your Air Bag System.............. 190Maintenance............................................. 190Redundant Air Bag Warning Light.............183Transporting Pets...................................... 209Air Bag Light............................... 130, 182, 210Air Cleaner, Engine (Engine Air
Cleaner Filter)...................................... 403, 425
Air Conditioner Maintenance........................ 405Air Conditioner Refrigerant.................. 405, 406Air Conditioner System................................. 405Air Conditioning......................................... 57, 67Air Conditioning Filter..............................69, 406Air Conditioning System................................... 67Air Conditioning, Operating Tips....................... 68Air Filter........................................................ 403Air PressureTires......................................................... 436AlarmPanic........................................................... 15Security Alarm....................................25, 132Alterations/ModificationsVehicle......................................................... 12Android Auto................................................. 545Antifreeze (Engine Coolant)................. 418, 459Capacites................................................. 460Disposal................................................... 420Anti-Lock Brake System (ABS)...................... 144Anti-Lock Warning Light................................ 137Apple CarPlay................................................ 546Assist, Hill Start............................................. 151Audio Systems (Radio).................................. 467Auto Down Power Windows............................. 70Automatic Door Locks...................................... 30
Automatic Headlights.......................................50Automatic Tailgate Release.............................74Automatic Temperature Control (ATC)..............67Automatic Transmission....................... 235, 424Adding Fluid.............................................. 424Fluid And Filter Change............................. 424Fluid Change............................................. 424Fluid Level Check............................. 422, 423Fluid Type............................... 422, 463, 466Shifting..................................................... 239Special Additives...................................... 422Automatic Transmission Limp Home Mode... 238AUX Camera......................................... 311, 318Auxiliary Driving Systems.............................. 153Axle Fluid.....................................424, 463, 466Axle Lubrication............................................ 424
B
Back-Up......................................................... 309Back-Up Camera........................................... 309Bar, Stabilizer/Sway System......................... 260Battery................................................. 132, 400Blanket..................................................... 225Charging System Light.............................. 132Keyless Key Fob Replacement....................15Battery Saver Feature......................................53

20_DJD2_OM_EN_USC_t.book Page 552

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

20_DJD2_OM_EN_USC_t.book Page 553

554 Diesel Fuel System, Re-Priming
..................... 412Differential, Limited Slip................................ 270Disabled Vehicle Towing................................ 381Disposal Antifreeze (Engine Coolant)....................... 420Do Not Disturb............................................... 545Door Ajar........................................................ 133Door Ajar Light............................................... 133Door LocksAutomatic.................................................... 30Doors............................................................... 26Draining Fuel/Water Separator Filter............ 409Driver’s Seat Back Tilt..................................... 33DrivingOff-Pavement............................................ 261Off-Road.................................................... 261Through Flowing, Rising, Or Shallow Standing Water..................................... 343Dual Rear Wheels................................ 445, 452
E
Electric Brake Control System....................... 145Anti-Lock Brake System............................. 144Electronic Roll Mitigation................. 149, 153Electrical Power Outlets................................... 86Electronic Range Select (ERS)............. 238, 243Electronic Stability Control (ESC)...................146Electronic Throttle Control Warning Light...... 132Electronically Shifted Transfer Case.... 246, 250Emergency Braking........................................ 231
Emergency, In Case OfFreeing Vehicle When Stuck..................... 380Hazard Warning Flasher........................... 346Jump Starting........................................... 375Emission Control System Maintenance........ 143Engine......................................... 396, 397, 398Air Cleaner................................................ 403Block Heater.................................... 220, 229Break-In Recommendations..................... 230Compartment.................................. 397, 398Compartment Identification...................... 396Coolant (Antifreeze)......................... 461, 464Exhaust Gas Caution....................... 209, 456Fails To Start............................................ 216Flooded, Starting...................................... 216Fuel Requirements.......................... 454, 459Identifcation.................................... 397, 398Idling........................................................ 226Jump Starting........................................... 375Oil..................................401, 459, 461, 464Oil Filler Cap.................................... 396, 402Oil Filter.................................................... 403Oil Reset................................................... 115Oil Selection.................................... 401, 459Oil Synthetic............................................. 403Overheating.............................................. 379Runaway................................................... 319Starting..................................................... 214Engine Oil Viscosity....................................... 402
Enhanced Accident Response Feature...189, 384

Entry System, Illuminated................................54Ethanol.......................................................... 454Exhaust Brake............................................... 232Exhaust Gas Cautions.......................... 209, 456Exhaust System..........................209, 416, 425Exterior Lighting...............................................48Exterior Lights........................................ 48, 212
F
FiltersAir Cleaner
................................................ 403Air Conditioning................................. 69, 406Engine Fuel............................................... 409Engine Oil............................... 403, 461, 464Engine Oil Disposal................................... 403FlashersTurn Signals.............................. 51, 141, 212Flash-To-Pass...................................................50Flat Tire Stowage.......................................... 372Fluid Capacities................................... 459, 460Fluid Leaks.................................................... 212Fluid Level ChecksBrake........................................................ 421Fluid, Brake................................................... 463Fluids And Lubricants........................... 461, 464Fog Lights.............................................. 51, 355Fold Flat Load Floor.........................................84Fold-Flat Seats.................................................33Forward Collision Warning............................ 160Four Wheel Drive........................................... 246

20_DJD2_OM_EN_USC_t.book Page 554

555
Four-Way Hazard Flasher
............................... 346Freeing A Stuck Vehicle................................. 380Front Axle (Differential).................................. 424Fuel..................................................... 454, 456Adding............................................. 319, 320Additives................................................... 454Capacity.................................................... 460Clean Air.................................................... 454Diesel.............................................. 456, 464Ethanol...................................................... 454Filler Cap (Gas Cap)................................... 320Filter.......................................................... 409Gasoline.................................................... 454Light.......................................................... 135Materials Added........................................ 454Methanol................................................... 454Octane Rating................................. 454, 461Requirements........................ 454, 456, 459Specifications............................................ 457Tank Capacity............................................ 459Fueling........................................................... 320Fuses............................................................. 358
G
Garage Door Opener (HomeLink).................... 76Gas Cap (Fuel Filler Cap)............................... 320Gasoline, Clean Air........................................ 454Gasoline, Reformulated................................. 454Gauges Voltage...................................................... 223
Gear Ranges................................................. 240Gear Selector Override................................. 377Glass Cleaning.............................................. 451Gross Axle Weight Rating.............................. 326Gross Vehicle Weight Rating......................... 325GuideBody Builders.............................................. 12GVWR............................................................ 324
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
....................... 343Hazard Warning Flashers.............................. 346Head Restraints............................................... 38Head Rests...................................................... 38Headlights.................................................... 353Automatic High Beam.................................. 49Cleaning................................................... 447High Beam................................................... 49Lights On Reminder..................................... 51Passing........................................................ 50Switch.......................................................... 48Heated Mirrors................................................. 46Heater, Engine Block.................................... 229Hill Descent Control...................................... 149Hill Descent Control Indicator....................... 149Hill Start Assist.............................................. 151HitchesTrailer Towing........................................... 329
Hoisting......................................................... 429HomeLink (Garage Door Opener).....................76Hood Prop........................................................74Hood Release...................................................74Hub Caps...................................................... 374
I
Idle-Up Feature............................................. 226Ignition.............................................................17Switch..........................................................17Illuminated Entry..............................................54In Vehicle HelpVehicle User Guide......................................13Inside Rearview Mirror.................... 42, 43, 346Instrument Cluster............................... 110, 112Descriptions.............................................. 141Display...................................................... 113Engine Oil Reset....................................... 115Instrument Panel Lens Cleaning................... 451Integrated Trailer Brake Control.................... 332Interior Appearance Care.............................. 450Interior Lights...................................................53Intermittent Wipers (Delay Wipers)..................55Intervention Regeneration Strategy..... 125, 413Introduction.....................................................11Inverter Outlet (115V)......................................88iPod/USB/MP3 Control................................. 53811

20_DJD2_OM_EN_USC_t.book Page 555