2020 Ram 2500 warning light

480MULTIMEDIA
Mirrors & Wipers
After pressing the Mirrors & Wipers button on the touchscreen, the following settings will be available:Forward Collision Warning — If
Equipped Off
Warning Only Warning & Braking
NOTE:
Sounds an audible warning for the driver to slow the vehicle in case of collision or sounds an audible warning and appliesbrakes. Forward Collision Warning Sensitivity — If Equipped Near
Med Far
NOTE:
Sets the distance in which a Forward Collision Warning occurs. Front ParkSense Volume — If Equipped Low
Med High
Rear ParkSense Volume — If Equipped Low
Med High
Power Side Steps — If Equipped Auto Store
Blind Spot Alert — If Equipped OffLightsLights & Chime
Hill Start Assist — If Equipped On Off
Tire Fill Assist — If Equipped On Off
Setting Name Selectable Options
Setting NameSelectable Options
Tilt Side Mirrors In Reverse — If Equipped OnOff

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486MULTIMEDIA
Air Suspension — If Equipped
After pressing the Suspension button on the touchscreen, the following settings will be available: Headlight Off Delay
–+
NOTE:
When the “Headlight Off Delay” feature is selected, the driver can choose to have the headlights remain on for 0, 30, 60, or 90 seconds when exiting
the vehicle.
Setting Name Selectable Options
Auto Entry/Exit — If EquippedOnOff
Easy Exit Seat — If Equipped OnOff
NOTE:
When the “Easy Exit Seat” feature is selected, the Driver’s seat will automatically move rearward once the engine is shut off.
Setting Name Selectable Options
Setting NameSelectable Options
Display Suspension MessagesAllWarnings Only
Tire Jack Mode On Off
NOTE:
When the “Tire Jack Mode” feature is selected, the air suspension system is disabled to assist with changing a spare tire.
Transport Mode On Off

NOTE:
When the “Transport Mode” feature is selected, the air suspension system lowers and then disables to assist with flat bed towing.

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MULTIMEDIA499
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

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540
INDEX
A
Adaptive Cruise Control (ACC) (Cruise
Control)
.......................................................... 275
Adding Engine Coolant (Antifreeze)............... 413
Adding Fuel.......................................... 312, 313
Additives, Fuel............................................... 446AdjustDown
........................................................... 34
Forward....................................................... 34
Rearward..................................................... 34
Up................................................................ 34
Adjustable Pedals............................................ 43
Air BagAir Bag Operation
...................................... 184
Air Bag Warning Light................................ 181Enhanced Accident Response......... 189, 371
Event Data Recorder (EDR)....................... 371
If Deployment Occurs................................ 188Knee Impact Bolsters................................ 184
Maintaining Your Air Bag System.............. 189
Maintenance............................................. 189Redundant Air Bag Warning Light.............182
Transporting Pets...................................... 208
Air Bag Light............................... 130, 181, 209
Air Cleaner, Engine (Engine Air Cleaner
Filter)
................................................... 398, 419
Air Conditioner Maintenance........................ 400
Air Conditioner Refrigerant........................... 400
Air Conditioner System................................. 400
Air Conditioning......................................... 57, 68
Air Conditioning Filter..............................70, 401
Air Conditioning System................................... 68Air Conditioning, Operating Tips....................... 69
Air Filter........................................................ 398
Air PressureTires
......................................................... 429
AlarmPanic
........................................................... 15
Security Alarm....................................25, 131
Alterations/ModificationsVehicle
......................................................... 12Android Auto................................................. 533
Antifreeze (Engine Coolant)................. 412, 451
Capacites................................................. 451Disposal................................................... 414
Anti-Lock Brake System (ABS)...................... 144
Anti-Lock Warning Light................................ 136Apple CarPlay................................................ 533
Assist, Hill Start............................................. 151
Audio Systems (Radio).................................. 458
Auto Down Power Windows............................. 71
Automatic Door Locks...................................... 31
Automatic Headlights.......................................51
Automatic Tailgate Release.............................75
Automatic Temperature Control (ATC)..............68
Automatic Transmission....................... 233, 418
Adding Fluid.............................................. 418
Fluid And Filter Change............................. 418Fluid Change............................................. 418
Fluid Level Check............................. 416, 417
Fluid Type...............................416, 454, 457
Shifting..................................................... 237
Special Additives...................................... 416
Automatic Transmission Limp Home Mode... 236
AUX Camera......................................... 304, 311
Auxiliary Driving Systems.............................. 153
Axle Fluid.....................................418, 454, 457Axle Lubrication............................................ 418
B
Back-Up
......................................................... 302
Back-Up Camera........................................... 302
Bar, Stabilizer/Sway System......................... 253Battery................................................. 132, 395
Blanket..................................................... 223
Charging System Light.............................. 132Keyless Key Fob Replacement....................15
Battery Saver Feature......................................53

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541
Belts, Seat
..................................................... 209
Blind Spot Monitoring.................................... 153
Body Builders Guide........................................ 12
Body Mechanism Lubrication........................ 408
B-Pillar Location............................................. 426
Brake Assist System...................................... 145
Brake Control System.................................... 145Brake Fluid.......................................... 415, 454
Brake System...................................... 415, 444
Fluid Check............................................... 415Master Cylinder......................................... 415
Parking...................................................... 229
Warning Light............................................ 130
Brake/Transmission Interlock....................... 232
Bulb Replacement......................................... 372Bulbs, Light.......................................... 210, 372
C
Cab Top Clearance Lights
.............................. 378
Camera.......................................................... 302
Camera, AUX........................................ 304, 311
Camera, Rear...................................... 302, 305
Camper.......................................................... 100
Capacities, Antifreeze (Engine Coolant)......... 451Capacities, Fluid............................................ 451
Caps, Filler Oil (Engine)
...................................... 391, 397
Radiator (Coolant Pressure)...................... 413
Car Washes................................................... 440
Carbon Monoxide Warning.................. 208, 448
Cargo Light....................................................... 52
Cellular Phone.............................................. 527
Center High Mounted Stop Light................... 377
Center Seat Storage Compartment.................. 82
Charge Air Cooler.......................................... 415
Chart, Tire Sizing........................................... 423
Check Engine Light (Malfunction Indicator
Light)............................................................. 142
Checking Your Vehicle For Safety................. 208
Checks, Safety.............................................. 208Child Restraint.............................................. 190
Child RestraintsBooster Seats
........................................... 193
Child Seat Installation..................... 201, 202
How To Stow An unused ALR Seat Belt.... 200Infant And Child Restraints....................... 192
Locating The LATCH Anchorages.............. 198
Lower Anchors And Tethers For Children.. 195
Older Children And Child Restraints......... 193Seating Positions...................................... 194
Clean Air Gasoline......................................... 446
CleaningWheels
..................................................... 434
Climate Control................................................ 57
Automatic.................................................... 61
Manual........................................................ 57
Cold Weather Operation............................... 215
Compact Spare Tire...................................... 433
Contract, Service.......................................... 537
Cooling Pressure Cap (Radiator Cap)............ 413
Cooling System............................................. 411
Adding Coolant (Antifreeze)...................... 413
Coolant Level................................... 412, 414
Cooling Capacity....................................... 451
Disposal Of Used Coolant......................... 414
Drain, Flush, And Refill............................. 412
Inspection................................................. 414Points To Remember................................ 414
Pressure Cap............................................ 413
Radiator Cap............................................. 413Selection Of Coolant (Antifreeze)
............... 412, 451, 452, 454
Corrosion Protection..................................... 439
Cruise Control (Speed Control)............. 273, 275
Cruise Light................................................... 141Cupholders.......................................................87
Customer Assistance.................................... 536
Cybersecurity................................................ 458
D
Daytime Running Lights
...................................49
Dealer Service............................................... 396
Defroster, Rear Window...................................57
Defroster, Windshield............................ 57, 209Delay (Intermittent) Wipers..............................55
Diagnostic System, Onboard......................... 141
Diesel Exhaust Brake.................................... 230
Diesel Fuel.................................................... 448
Diesel Fuel Requirements............................. 448
Diesel Fuel System, Re-Priming.................... 407
11

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542
Differential, Limited Slip
................................ 264
Disabled Vehicle Towing................................ 369
Disposal Antifreeze (Engine Coolant)
....................... 414
Do Not Disturb............................................... 532
Door Ajar........................................................ 133
Door Ajar Light............................................... 133Door LocksAutomatic
.................................................... 31
Doors............................................................... 27Draining Fuel/Water Separator Filter............ 403
Driver’s Seat Back Tilt..................................... 32
DrivingOff-Pavement
............................................ 255
Off-Road.................................................... 255Through Flowing, Rising, Or Shallow Standing Water
..................................... 335
Dual Rear Wheels................................ 437, 444
E
Electric Brake Control System
....................... 145
Anti-Lock Brake System............................. 144
Electronic Roll Mitigation................. 149, 153
Electrical Power Outlets................................... 88Electronic Range Select (ERS)............. 236, 241
Electronic Stability Control (ESC)...................146
Electronic Throttle Control Warning Light...... 132
Electronically Shifted Transfer Case.............. 244
Emergency Braking........................................ 229
Emergency, In Case OfFreeing Vehicle When Stuck
..................... 367
Hazard Warning Flasher........................... 338
Jump Starting........................................... 362
Emission Control System Maintenance........ 142
Engine......................................... 391, 392, 393
Air Cleaner................................................ 398Block Heater.................................... 218, 227
Break-In Recommendations..................... 228
Compartment.................................. 392, 393Compartment Identification...................... 391
Coolant (Antifreeze)......................... 452, 454
Exhaust Gas Caution....................... 208, 448
Fails To Start............................................ 214
Flooded, Starting...................................... 214Fuel Requirements.......................... 446, 451
Identifcation.................................... 392, 393
Idling........................................................ 224
Jump Starting........................................... 362Oil..................................396, 451, 452, 454
Oil Filler Cap.................................... 391, 397
Oil Filter.................................................... 398
Oil Reset................................................... 119
Oil Selection.................................... 396, 451
Oil Synthetic............................................. 398
Overheating.............................................. 367
Runaway................................................... 312
Starting..................................................... 212
Engine Oil Viscosity....................................... 397
Enhanced Accident Response
Feature
................................................ 189, 371
Entry System, Illuminated................................55
Ethanol.......................................................... 446
Exhaust Brake............................................... 230
Exhaust Gas Cautions.......................... 208, 448
Exhaust System..........................208, 410, 419Exterior Lighting...............................................49
Exterior Lights........................................ 49, 210
F
FiltersAir Cleaner
................................................ 398
Air Conditioning................................. 70, 401
Engine Fuel............................................... 403
Engine Oil...............................398, 452, 454
Engine Oil Disposal................................... 398
FlashersTurn Signals
.............................. 52, 140, 210
Flash-To-Pass...................................................51
Flat Tire Stowage.......................................... 350
Fluid Capacities............................................ 451
Fluid Leaks.................................................... 210
Fluid Level ChecksBrake........................................................ 415
Fluid, Brake................................................... 454
Fluids And Lubricants........................... 452, 454
Fog Lights.............................................. 52, 376
Fold Flat Load Floor.........................................86
Fold-Flat Seats.................................................32

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543
Forward Collision Warning
............................. 160
Four Wheel Drive........................................... 244
Four-Way Hazard Flasher............................... 338
Freeing A Stuck Vehicle................................. 367
Front Axle (Differential).................................. 418
Fuel..................................................... 446, 448
Adding............................................. 312, 313Additives................................................... 446
Capacity.................................................... 451
Clean Air.................................................... 446Diesel.............................................. 448, 454
Ethanol...................................................... 446
Filler Cap (Gas Cap)................................... 313
Filter.......................................................... 403
Gasoline.................................................... 446Light.......................................................... 135
Materials Added........................................ 446
Methanol................................................... 446
Octane Rating................................. 446, 452Requirements........................ 446, 448, 451
Specifications............................................ 448
Tank Capacity............................................ 451
Fueling........................................................... 313
Fuses............................................................. 353
G
Garage Door Opener (HomeLink)
.................... 76
Gas Cap (Fuel Filler Cap)............................... 313
Gasoline, Clean Air........................................ 446
Gasoline, Reformulated................................. 446
Gauges Voltage
..................................................... 221
Gear Ranges................................................. 238
Gear Selector Override................................. 365
Glass Cleaning.............................................. 443
Gross Axle Weight Rating.............................. 319
Gross Vehicle Weight Rating......................... 318GuideBody Builders
.............................................. 12
GVWR............................................................ 317
H
HazardDriving Through Flowing, Rising, Or Shallow Standing Water
.................................... 335
Hazard Warning Flashers.............................. 338
Head Restraints............................................... 39
Head Rests...................................................... 39
Headlights.................................................... 374
Automatic High Beam.................................. 50
Cleaning................................................... 439
High Beam................................................... 50
Lights On Reminder..................................... 52
Passing........................................................ 51Switch.......................................................... 49
Heated Mirrors................................................. 47
Heater, Engine Block.................................... 227
Hill Descent Control...................................... 149
Hill Descent Control Indicator....................... 149
Hill Start Assist.............................................. 151
HitchesTrailer Towing
........................................... 322
Hoisting......................................................... 422
HomeLink (Garage Door Opener).....................76
Hood Prop........................................................74
Hood Release...................................................74
Hub Caps...................................................... 352
I
Idle-Up Feature
............................................. 224Ignition.............................................................18
Switch..........................................................18
Illuminated Entry..............................................55
In Vehicle HelpVehicle User Guide
......................................13
Inside Rearview Mirror.................... 43, 44, 338
Instrument Cluster............ 113, 114, 116, 117
Descriptions.............................................. 140
Display...................................................... 117
Engine Oil Reset....................................... 119
Instrument Panel Lens Cleaning................... 443
Integrated Trailer Brake Control.................... 325
Interior Appearance Care.............................. 442
Interior Lights...................................................53Intermittent Wipers (Delay Wipers)..................55
Intervention Regeneration Strategy..... 124, 407
Inverter Outlet (115V)......................................90
iPod/USB/MP3 Control................................. 52511

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544
J
Jack Location
................................................. 342
Jump Starting................................................ 362
K
Key Fob Panic Alarm
................................................. 15
Programming Additional Key Fobs....... 17, 24
Key Fob Battery Service (Remote Keyless
Entry)
............................................................... 15Key Fob Programming (Remote Keyless
Entry)
............................................................... 17
Keyless Enter-N-Go........................28, 211, 216
Lock The Vehicle’s Doors....... 466, 483, 502
Passive Entry............................................... 28
Passive Entry Programming............. 483, 502
Keys................................................................. 14
Replacement............................................... 24
L
Lane Change And Turn Signals
........................ 52
Lane Change Assist......................................... 52
LaneSense.................................................... 299
Latches.......................................................... 210
Hood........................................................... 74
Lead Free Gasoline........................................ 446
Leaks, Fluid................................................... 210
Life Of Tires................................................... 431
Light Bulbs........................................... 210, 372
Lights............................................................ 210
Air Bag.................................... 130, 181, 209
Automatic High Beam.................................. 50
Brake Assist Warning............................... 148
Brake Warning.......................................... 130
Bulb Replacement.................................... 372
Cab Top Clearance................................... 378Cargo........................................................... 52
Center Mounted Stop............................... 377
Courtesy/Reading....................................... 54Cruise....................................................... 141
Daytime Running......................................... 49
Electronic Stability Program(ESP) Indicator
............................................... 131
Exterior...............................................49, 210Fog........................................................... 376
Four Wheel Drive Indicator....................... 250
Hazard Warning Flasher........................... 338
Headlights............................................ 49, 51High Beam................................................... 50
Hill Descent Control Indicator................... 149
Illuminated Entry......................................... 55
Interior.................................................. 53, 54
Lights On Reminder..................................... 52
Low Fuel................................................... 135
Malfunction Indicator (Check Engine)....... 133
Park.......................................................... 140
Passing........................................................ 51
Seat Belt Reminder.................................. 130
Security Alarm.......................................... 131
Service...................................................... 372
Side Marker.............................................. 379
Traction Control........................................ 148
Transfer Case........................................... 250
Turn Signals............52, 140, 210, 374, 376
Warning Instrument Cluster Descriptions
................................ 131, 140Limited-Slip Differential....................... 264, 418
Load Shed Battery Saver Mode..................... 128
Load Shed Battery Saver On......................... 128Load Shed Electrical Load Reduction........... 128
Load Shed Intelligent Battery Sensor............ 128
Loading Vehicle............................................. 317
Tires.......................................................... 426
LocksAutomatic Door............................................31
Child Protection...........................................31
Power Door..................................................27
Low Tire Pressure System............................. 163Lubrication, Body.......................................... 408
Lug Nuts/Bolts.............................................. 444
M
Maintenance
....................................................74Maintenance Free Battery............................ 395
Maintenance Plan......................................... 386
Maintenance Schedule............... 380, 384, 386
Malfunction Indicator Light (Check
Engine)
................................................. 133, 142

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