2019 Ram 3500 fuel cap

410 STARTING AND OPERATING
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the
fuel filler cap is loose, improperly installed, or
damaged, a loose gascap indicator will display in the
instrument cluster telltale display area. Refer to “Instrument
Cluster Display” in “Getting To Know Your Instrument
Panel” for further information. Tighten the fuel filler cap
properly and push the RIGHT button to turn off the message.
If the problem continues, the message will appear the next
time the vehicle is started.
VEHICLE LOADING
Gross Vehicle Weight Rating (GVWR)
The GVWR is the total permissible weight of your vehicle
including driver, passengers, vehicle, options and cargo. The
label also specifies maximum capacities of front and rear axle
systems (GAWR). Total load must be limited so GVWR and
front and rear GAWR are not exceeded.
Payload
The payload of a vehicle is defined as the allowable load
weight a truck can carry, including the weight of the driver,
all passengers, options and cargo.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum permissible load on the front
and rear axles. The load must be distributed in the cargo area
so that the GAWR of each axle is not exceeded.
Each axle GAWR is determined by the components in the
system with the lowest load carrying capacity (axle, springs,
tires or wheels). Heavier axles or suspension components
sometimes specified by purchasers for increased durability
does not necessarily increase the vehicle's GVWR.
Tire Size
The tire size on the Vehicle Certification Label represents the
actual tire size on your vehicle. Replacement tires must be
equal to the load capacity of this tire size.
Rim Size
This is the rim size that is appropriate for the tire size listed.
Inflation Pressure
This is the cold tire inflation pressure for your vehicle for all
loading conditions up to full GAWR.

STARTING AND OPERATING 411
Curb Weight
The curb weight of a vehicle is defined as the total weight of
the vehicle with all fluids, including vehicle fuel, at full
capacity conditions, and with no occupants or cargo loaded
into the vehicle. The front and rear curb weight values are
determined by weighing your vehicle on a commercial scale
before any occupants or cargo are added.
Loading
The actual total weight and the weight of the front and rear
of your vehicle at the ground can best be determined by
weighing it when it is loaded and ready for operation.
The entire vehicle should first be weighed on a commercial
scale to insure that the GVWR has not been exceeded. The
weight on the front and rear of the vehicle should then be
determined separately to be sure that the load is properly
distributed over the front and rear axle. Weighing the vehicle
may show that the GAWR of either the front or rear axles has
been exceeded but the total load is within the specified
GVWR. If so, weight must be shifted from front to rear or
rear to front as appropriate until the specified weight limita-
tions are met. Store the heavier items down low and be sure
that the weight is distributed equally. Stow all loose items
securely before driving. Improper weight distributions can have an adverse effect on
the way your vehicle steers and handles and the way the
brakes operate.
TRAILER TOWING
In this section you will find safety tips and information on
limits to the type of towing you can reasonably do with your
vehicle. Before towing a trailer, carefully review this infor
-
mation to tow your load as efficiently and safely as possible.
To maintain the New Vehicle Limited Warranty coverage,
follow the requirements and recommendations in this
manual concerning vehicles used for trailer towing. CAUTION!
Do not load your vehicle any heavier than the GVWR or
the maximum front and rear GAWR. If you do, parts on
your vehicle can break, or it can change the way your
vehicle handles. This could cause you to lose control.
Also overloading can shorten the life of your vehicle.
5

IN CASE OF EMERGENCY 463
F57–20 Amp Yellow TCM/PCM / Solenoid Trans Pressure SW (RFE
Trans Only) – If Equipped (HD Only)
Transmission (DS 1500 Only)
F58 –10 Amp Red Bed Lighting (LED) – If Equipped (HD Only)
F60 –15 Amp Blue Underhood Lamp / TCM – If Equipped (DS
1500 Only)
F61 –10 Amp Red UREA Sensor / PM Sensor – If Equipped (DS
1500 LD Diesel & Cummins Diesel)
F62 –10 Amp Red Air Conditioning Clutch
F63 –20 Amp Yellow Ignition Coils (Gas), Ignition Coils Capacitors
(Gas) / Short Runner Valve Actuator / Urea
Heater Control Unit (DS 1500 LD Diesel) / RLY
Coil Feed-SCR (DS 1500 LD Diesel)
F64 –25 Amp Clear Fuel Injectors / Powertrain Control Module /
SRV – If Equipped
F65 –10 Amp Red MOD Inverter (Wake Up) / Power Port / USB
IP / WCPM – If Equipped (HD Only)
Spare (DS 1500 Only)
F66 –10 Amp Red Sunroof / Light and Rain Sensor Module /
Inside Rearview Mirror / Passenger Window
SW / USB Port Rear / Feed for R/A RLY #2
Coil – If Equipped
Cavity
Cartridge Fuse Micro Fuse Description
6

542 SERVICING AND MAINTENANCE
Fuel Economy
Underinflated tires will increase tire rolling resistance
resulting in higher fuel consumption.
Tread Wear
Improper cold tire inflation pressures can cause abnormal
wear patterns and reduced tread life, resulting in the need
for earlier tire replacement.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride.
Over-inflation produces a jarring and uncomfortable ride.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the driver's
side B-Pillar or rear edge of the driver's side door.
At least once a month:
• Check and adjust tire pressure with a good qualitypocket-type pressure gauge. Do not make a visual judge -
ment when determining proper inflation. Tires may look
properly inflated even when they are under-inflated. • Inspect tires for signs of tire wear or visible damage.
Inflation pressures specified on the placard are always “cold
tire inflation pressure”. Cold tire inflation pressure is
defined as the tire pressure after the vehicle has not been
driven for at least three hours, or driven less than 1 mile
(1.6 km) after sitting for a minimum of three hours. The cold
tire inflation pressure must not exceed the maximum infla
-
tion pressure molded into the tire sidewall.
Check tire pressures more often if subject to a wide range of
outdoor temperatures, as tire pressures vary with tempera -
ture changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12°F (7°C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in the
Winter. CAUTION!
After inspecting or adjusting the tire pressure, always
reinstall the valve stem cap. This will prevent moisture
and dirt from entering the valve stem, which could
damage the valve stem.

TECHNICAL SPECIFICATIONS 571
FLUID CAPACITIES
U.S.Metric
Fuel (Approximate)
2500/3500 Shortbed Models 31 Gallons117 Liters
2500/3500 Longbed Models 32 Gallons121 Liters
Engine Oil With Filter
6.4L Engine (We recommend you use SAE 0W-40 engine oil meeting the
requirements of FCA Material Standard MS-12633 for use in all operating
temperatures.) 7 Quarts
6.6 Liters
Cooling System
6.4L Engine – (We recommend you use Mopar Antifreeze/Coolant 10
Year/150,000 Mile Formula that meets the requirements of FCA Material
Standard MS.90032.) 16.6 Quarts
15.7 Liters
8

681
Differential, Limited Slip ....................................................... 337
Disabled Vehicle Towing ....................................................... 495
Disposal Antifreeze (Engine Coolant) .............................................. 525
Do Not Disturb ........................................................................ 668
Door Ajar.................................................................................. 183
Door Ajar Light ....................................................................... 183
Door Locks Automatic ............................................................................... 39
Doors........................................................................................... 33
Drag And Drop Menu ............................................................ 575
Driver’s Seat Back Tilt .............................................................. 40
Driving Off-Pavement....................................................................... 324Off-Road ............................................................................... 324
Through Flowing, Rising, Or Shallow Standing Water ..... 437

Dual Rear Wheels ........................................................... 554, 565 E
Electric Brake Control System ............................................... 196 Anti-Lock Brake System ..................................................... 195
Electronic Roll Mitigation .......................................... 200, 204
Electrical Power Outlets......................................................... 124
Electronic Range Select (ERS)................................................ 307
Electronic Stability Control (ESC) ........................................ 200
Electronic Throttle Control Warning Light ......................... 182
Electronically Shifted Transfer Case .................................... 309 Emergency Braking.................................................................298
Emergency, In Case Of Freeing Vehicle When Stuck ..............................................494Hazard Warning Flasher ....................................................440
Jump Starting .......................................................................488
Emission Control System Maintenance ...............................193
Engine .......................................................................................504 Air Cleaner ...........................................................................509
Block Heater .........................................................................297
Break-In Recommendations...............................................297Compartment Identification ..............................................504Coolant (Antifreeze)............................................................ 572
Exhaust Gas Caution................................................... 286, 570Fails To Start.........................................................................295
Flooded, Starting .................................................................295
Fuel Requirements ......................................................567, 571
Jump Starting .......................................................................488Oil ..........................................................................507, 571, 572
Oil Filler Cap ................................................................504, 508
Oil Filter ................................................................................509Oil Reset ................................................................................167Oil Selection .................................................................507, 571
Oil Synthetic .........................................................................508
Overheating..........................................................................493
Starting..................................................................................292
Engine Oil Viscosity................................................................508
11

682
Enhanced Accident Response Feature ......................... 255, 498
Entry System, Illuminated ....................................................... 76
Ethanol...................................................................................... 568
Exhaust Gas Cautions .................................................... 286, 570
Exhaust System ............................................................... 286, 520
Exterior Lighting ....................................................................... 67 Exterior Lights ................................................................... 67, 289 F
Filters Air Cleaner ........................................................................... 509Air Conditioning ........................................................... 93, 512
Engine Oil..................................................................... 509, 572
Engine Oil Disposal ............................................................ 508
Flashers Turn Signals ........................................................... 71, 191, 289
Flash-To-Pass ............................................................................. 69
Flat Tire Changing .................................................. 469, 531, 548
Flat Tire Stowage .................................................... 483, 531, 548
Fluid Capacities ....................................................................... 571
Fluid Leaks ............................................................................... 289
Fluid Level Checks Brake ..................................................................................... 527
Fluid, Brake .............................................................................. 574
Fluids And Lubricants ........................................................... 572
Fog Lights........................................................................... 71, 451
Fold Flat Load Floor ............................................................... 119 Fold-Flat Seats ...........................................................................40
Forward Collision Warning................................................... 216
Four Wheel Drive .................................................................... 309
Four-Way Hazard Flasher .....................................................440
Freeing A Stuck Vehicle .........................................................494
Front Axle (Differential) .........................................................529
Fuel ............................................................................................567 Adding ..................................................................................408
Additives ..............................................................................568
Clean Air...............................................................................568
Ethanol ..................................................................................568
Filler Cap (Gas Cap)............................................................ 410
Gasoline ................................................................................567Light ...................................................................................... 186
Materials Added ..................................................................568
Methanol...............................................................................568
Octane Rating...............................................................567, 572Requirements ...............................................................567, 571Tank Capacity ......................................................................571
Fuses..........................................................................................457 G
Garage Door Opener (HomeLink) ........................................104
Gas Cap (Fuel Filler Cap) .......................................................410
Gasoline, Clean Air .................................................................568
Gasoline, Reformulated..........................................................568
General Information ...............................................................230