2011 Ram 2500 fuel pressure

the max load inflation pressure (cold) values to switch
the TPMS system to the max load inflation pressure
(cold) low pressure warning threshold. If after pressing
the tire light load inflation switch, and tire pressures are
below the max load inflation pressure (cold) low pressure
warning thresholds, the TPMS low pressure warning
telltale light (located in the instrument cluster) will turn
ON and a chime will sound. The tire pressures are now
required to be inflated to the max load inflation pressure
(cold) values described on the Tire and Loading Informa-
tion label. The Tire and Loading Information label is
located on the drivers side B-pillar. If the tire light load
inflation switch LED turns OFF, the TPMS has been reset
and the TPMS is using the max load inflation pressure
(cold) low pressure warning thresholds.
General Information
This device complies with Part 15 of the FCC rules and
RSS 210 of Industry Canada. Operation is subject to the
following conditions:
•This device may not cause harmful interference.
•This device must accept any interference received,
including interference that may cause undesired
operation.
The TPM sensors are regulated under one of the follow-
ing licenses:
United States.....................KR5S120123
Canada........................2671-S120123
FUEL REQUIREMENTS
3.7L and 4.7L Engine
All engines (except 5.7L engines) are de-
signed to meet all emissions regulations
and provide excellent fuel economy and
performance when using high quality un-
leaded “regular” gasoline having an oc-
tane rating of 87. The use of premium
5
STARTING AND OPERATING 435

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 in-
creased durability does not necessarily increase the vehi-
cle’s GVWR.
Tire Size
The tire size on the 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.
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 commer-
cial scale to insure that the GVWR has not been exceeded.
The weight on the front and rear of the vehicle should
5
STARTING AND OPERATING 447

CAUTION! (Continued)
•Your vehicle has been built with improved fluids
that protect the performance and durability of
your vehicle and also allow extended maintenance
intervals. Do not use chemical flushes in these
components as the chemicals can damage your
engine, transmission, power steering or air condi-
tioning. Such damage is not covered by the New
Vehicle Limited Warranty. If a flush is needed
because of component malfunction, use only the
specified fluid for the flushing procedure.
Engine Oil
Checking Oil Level
To assure proper lubrication of your vehicle’s engine, 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. Always
maintain the oil level within the SAFE zone on the
dipstick. Adding one quart of oil when the reading is at
the bottom of the SAFE zone will result in a reading at the
top of the safe zone on these engines.
CAUTION!
Overfilling or underfilling the crankcase will cause
oil aeration or loss of oil pressure. This could damage
your engine.
Change Engine Oil
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.
Refer to “Maintenance Schedule” for further information.
7
MAINTAINING YOUR VEHICLE 523

Cavity Cartridge
FuseMini
FuseDescription
M19 25 Amp
NaturalAutomatic Shutdown
1 and 2
M20 15 Amp
BlueInstrument Cluster
Interior Lighting /Sw
Steering Wheel/Sw
Bank
M21 20 Amp
YellowAutomatic Shutdown
3
M22 10 Amp
RedHorns (Low/High) –
Right
M23 10 Amp
RedHorns (Low/High) –
Left
M25 20 Amp
YellowFuel Pump Motor/
Diesel Lift Pump – If
Equipped
M26 10 Amp
RedSpareCavity Cartridge
FuseMini
FuseDescription
M27 10 Amp
RedIgnition Switch
M28 15 Amp
BluePowertrain Control
Module
M29 10 Amp
RedTire Pressure Monitor
M30 15 Amp
BlueJ1962 Diag Connector
M32 10 Amp
RedAirbag Module
M33 10 Amp
RedPowertrain Control
Module
M34 10 Amp
RedPark Assist Module/
Climate Control Sys-
tem Module/IR
Sensor/Compass
Module
556 MAINTAINING YOUR VEHICLE

NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s
oil if it has been six months since your last oil change
even if the oil change indicator message is NOT
illuminated.
•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 8,000 miles (13 000 km) or six months, which-
ever comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Electronic Vehicle
Information Center (EVIC)/Oil Change Required” in“Understanding Your Instrument Panel” or under “In-
strument Cluster Description/Odometer/Trip Odom-
eter” in “Understanding Your Instrument Panel” for
further information.
At Each Stop for Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
Once a Month
•Check tire pressure and look for unusual wear or
damage.8
M
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SMAINTENANCE SCHEDULES 575

Adding Engine Coolant (Antifreeze).......... 535
Adding Fuel........................... 444
Adjustable Pedals....................... 133
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 526
Air Conditioner Maintenance............... 528
Air Conditioning........................ 286
Air Conditioning Controls................. 286
Air Conditioning, Operating Tips............ 297
Air Conditioning Refrigerant.............528,529
Air Conditioning System.............286,290,528
Air Pressure, Tires....................412,418
Airbag..............................54,63
Airbag Deployment....................... 64
Airbag Light.....................62,67,84,220
Airbag Maintenance....................... 66
Airbag, Side..........................61,63
Airbag, Window (Side Curtain)...........57,61,63
Alarm Light........................... 210
Alarm, Panic............................ 24Alarm (Security Alarm).................... 18
Alarm System (Security Alarm)............... 18
Alterations/Modifications, Vehicle............. 7
Antenna, Satellite Radio................... 267
Antifreeze (Engine Coolant)..............535,569
Disposal............................ 537
Anti-Lock Brake System (ABS).............. 390
Anti-Lock Warning Light.................. 221
Anti-Theft Security Alarm (Theft Alarm)........ 18
Anti-Theft System........................ 18
Appearance Care........................ 546
Ashtray............................... 163
Auto Down Power Windows................ 35
Automatic Dimming Mirror................. 94
Automatic Headlights.................... 123
Automatic Temperature Control (ATC)......... 290
Automatic Transmission................... 311
Adding Fluid......................... 544
Fluid and Filter Changes................. 545
602 INDEX

Power Steering........................ 386
Radiator (Coolant Pressure)............... 536
Car Washes............................ 547
Carbon Monoxide Warning...............83,440
Cargo Light............................ 126
Cellular Phone.......................100,285
Center High Mounted Stop Light............ 564
Center Lap Belts......................... 48
Center Seat Storage Compartment............ 171
Certification Label....................... 446
Chart, Tire Sizing........................ 403
Check Engine Light
(Malfunction Indicator Light).............219,520
Checking Your Vehicle For Safety............. 82
Checks, Safety........................... 82
Child Restraint........................68,69
Child Restraint Tether Anchors.............73,76
Child Seat............................69,75
Cigar Lighter........................... 163Cleaning
Wheels............................. 548
Climate Control......................... 285
Clock.............................246,256
Compact Disc (CD) Maintenance............. 285
Compass.............................. 236
Compass Calibration..................... 237
Compass Variance....................... 237
Computer, Trip/Travel.................... 233
Connector
UCI .............................270,276
Universal Consumer Interface (UCI)......270,276
Conserving Fuel......................231,233
Console, Overhead....................... 149
Contract, Service........................ 595
Coolant Pressure Cap (Radiator Cap).......... 536
Cooling System......................... 534
Adding Coolant (Antifreeze).............. 535
Coolant Capacity...................... 569
604 INDEX

Coolant Level......................534,537
Disposal of Used Coolant................ 537
Drain, Flush, and Refill.................. 534
Inspection........................... 537
Points to Remember.................... 538
Pressure Cap......................... 536
Radiator Cap......................... 536
Selection of Coolant (Antifreeze)......535,569,571
Cruise Control (Speed Control).............. 135
Cupholders............................ 166
Customer Assistance..................... 593
Data Recorder, Event...................... 67
Daytime Running Lights................... 127
Dealer Service.......................... 522
Defroster, Rear Window................... 176
Defroster, Windshield................84,288,294
Delay (Intermittent) Wipers................. 130
Differential, Limited-Slip.................. 360Dipsticks
Automatic Transmission................. 544
Power Steering........................ 386
Disabled Vehicle Towing................... 508
Disposal
Antifreeze (Engine Coolant)............... 537
Door Locks............................. 29
Door Opener, Garage..................... 151
Driving
Off-Pavement......................... 343
Off-Road............................ 343
Through Flowing, Rising, or Shallow
Standing Water........................ 362
Driving to Achieve Maximum Fuel Economy.... 231
Dual Rear Wheels.....................423,498
DVD Player (Video Entertainment System™).... 282
E-85 Fuel............................. 440
Electric Rear Window Defrost............... 176
10
INDEX 605