2019 Ram 3500 fuel pressure

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.

MULTIMEDIA 579
Display
After pressing the “Display” button on the touchscreen, the following settings will be available.
Units — If Equipped
After pressing “Units” on the touchscreen, the following will be available:Setting Name
Selectable Options
Display Mode AutoManual
Set Language English, Français, Español
Touchscreen Beep OnOff
Fuel Saver Display OnOff
NOTE:
The “Fuel Saver Display” feature will allow you to enable fuel saver mode and will be displayed in the instrument cluster
display.
Setting Name Selectable Options
Units USMetric Custom
Speed MPH km/h
Distance mi km
Fuel Consumption MPG (UG)MPG (UK) L/100 km km/L
Pressure psikPa bar
9

600 MULTIMEDIA
Units
After pressing the “Units” button on the touchscreen, you may select each unit of measure independently displayed in the
instrument cluster display, and navigation system (if equipped). The following selectable units of measure are listed below:Setting Name Selectable Options
Units USMetric Custom
NOTE:
When the “Custom” setting is selected, units will appear according to your personally configured settings. To configure these
settings, press the “Custom” bar. The following settings will appear: Speed MPH km/h
Distance mi km
Fuel Consumption MPG (US)MPG (UK) L/100 km km/L
Pressure psikPa bar
Power — If Equipped HP (US)
HP (UK) Kw
Temperature °F °C
Torque — If Equipped lb-ft Nm

624 MULTIMEDIA
Units — If Equipped
After pressing “Units” on the touchscreen, the following will be available:
Voice
After pressing the “Voice” button on the touchscreen, the following settings will be available:Setting Name
Selectable Options
Units USMetric Custom
NOTE: When the “Custom” setting is selected, units will appear according to your personally configured settings. To
configure these settings, press the “Custom” bar. The following settings will appear:
Speed MPH km/h
Distance mi km
Fuel Consumption MPG (US)MPG (UK) L/100 km km/L
Pressure psikPa bar
Power — If Equipped HP (US)
HP (UK)
Kw
Temperature °F °C
Torque — If Equipped lb-ft Nm
Setting Name Selectable Options
Voice Response Length Brief Detailed
Show Command List Alwaysw/Help Never

INDEX
A
Adaptive Cruise Control (ACC) (Cruise Control) ............. 357
Adding Engine Coolant (Antifreeze) ................................... 524
Adding Fuel ............................................................................. 408
Additives, Fuel ........................................................................ 568
Adjust Down....................................................................................... 44
Forward .................................................................................. 44
Rearward ................................................................................ 44
Up ............................................................................................ 44
Adjustable Pedals...................................................................... 56
Air Bag Air Bag Operation ............................................................... 249Air Bag Warning Light ....................................................... 245
Enhanced Accident Response ................................... 255, 498
Event Data Recorder (EDR) ............................................... 498
If Deployment Occurs ........................................................ 254
Knee Impact Bolsters .......................................................... 249Maintaining Your Air Bag System.................................... 256
Maintenance......................................................................... 256
Transporting Pets ................................................................ 286
Air Bag Light ........................................................... 180, 245, 287
Air Cleaner, Engine (Engine Air Cleaner Filter) ................ 509
Air Conditioner Maintenance ............................................... 511 Air Conditioner Refrigerant ..........................................511, 512
Air Conditioner System..........................................................511
Air Conditioning ................................................................. 79, 90
Air Conditioning Filter .....................................................93, 512
Air Conditioning System .........................................................91
Air Conditioning, Operating Tips ..........................................91
Air Filter ...................................................................................509
Air Pressure Tires .......................................................................................542
Alarm Panic ........................................................................................19
Security Alarm ...............................................................32, 181
Alterations/Modifications Vehicle.....................................................................................15
Android Auto ..........................................................................668
Antifreeze (Engine Coolant) ..........................................523, 571 Disposal ................................................................................525
Anti-Lock Brake System (ABS) .............................................195
Anti-Lock Warning Light.......................................................187
Apple CarPlay .........................................................................670
Assist, Hill Start .......................................................................198
Audio Systems (Radio)........................................................... 575
Auto Down Power Windows ..................................................95
Auto Unlock, Doors ................................................................306

685
Seat Belt Reminder .............................................................. 179Security Alarm..................................................................... 181
Service ................................................................................... 446Side Marker .......................................................................... 457
Traction Control .................................................................. 204
Transfer Case ....................................................................... 317Turn Signals ........................................... 71, 191, 289, 447, 452
Warning Instrument Cluster Descriptions .............. 181, 191
Limited-Slip Differential ................................................ 337, 530
Load Shed Battery Saver Mode............................................. 177
Load Shed Battery Saver On ................................................. 177
Load Shed Electrical Load Reduction .................................. 177
Load Shed Intelligent Battery Sensor ................................... 177
Loading Vehicle ...................................................................... 410 Tires....................................................................................... 537
Locks Automatic Door..................................................................... 39
Child Protection .................................................................... 39
Power Door ............................................................................ 35
Low Tire Pressure System ..................................................... 220
Lubrication, Body ................................................................... 517
Lug Nuts/Bolts ....................................................................... 565 M
Maintenance............................................................................. 100
Maintenance Free Battery ...................................................... 506
Maintenance Schedule ........................................................... 499 Malfunction Indicator Light (Check Engine) ......................184
Manual Park Release .........................................................................492
Service ...................................................................................677
Media Hub ...............................................................................643
Memory Seat ..............................................................................45
Methanol...................................................................................568
Mirrors ........................................................................................57 Electric Powered ....................................................................60
Heated .....................................................................................63
Memory...................................................................................45
Outside....................................................................................59
Rearview .............................................................57, 58, 59, 441 Trailer Towing .......................................................................62
Modifications/Alterations Vehicle.....................................................................................15
Monitor, Tire Pressure System ..............................................220
Mopar Parts..............................................................................676
MP3 Control ............................................................................. 643
Multi-Function Control Lever .................................................67 N
Navigation System (Uconnect GPS) .....................................397
New Vehicle Break-In Period ................................................297 O
Occupant Restraints ................................................................230
Octane Rating, Gasoline (Fuel)..............................................567
11