2012 Ram 5500 Chassis Cab service indicator

ONBOARD DIAGNOSTIC SYSTEM (OBD II)
Your vehicle is equipped with a sophisticated onboard
diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing, while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
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 EVIC telltale display area.
Refer to “Electronic Vehicle Information Center (EVIC) in
“Understanding Your Instrument Panel” for further in-
formation. Tighten the fuel filler cap properly and press
406 MAINTAINING YOUR VEHICLE

the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing.Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
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MAINTAINING YOUR VEHICLE 407

MAINTENANCE SCHEDULE
5.7L Gas Engine
The Scheduled Maintenance services listed in this
manual must be done at the times or mileages specified
to protect your vehicle warranty and ensure the best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving. Inspection and service should also be done
anytime a malfunction is suspected.
The oil change indicator system will remind you that it is
time to take your vehicle in for scheduled maintenance.On Electronic Vehicle Information Center (EVIC)
equipped vehicles, “Oil Change Due” will be displayed
in the EVIC and a single chime will sound, indicating that
an oil change is necessary.
On Non-EVIC equipped vehicles, “Change Oil” will flash
in the instrument cluster odometer and a single chime
will sound, indicating that an oil change is necessary.
Based on engine operation conditions the oil change
indicator message will illuminate, this means that service
is required for your vehicle. Have your vehicle serviced
as soon as possible, within the next 500 miles (805 km).
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S458 MAINTENANCE SCHEDULES

Carbon Monoxide Warning............... 79,345
CargoLight ............................ 152
Cellular Phone........................ 93,262
Center High Mounted Stop Light............ 449
Center Lap Belts......................... 49
Center Seat Storage Compartment............ 176
Certification Label....................... 347
Chart, Tire Sizing........................ 316
Check Engine Light
(Malfunction Indicator Light).............200,407
Checking Your Vehicle For Safety............. 78
Checks, Safety........................... 78
Child Restraint.......................... 65
Child Restraint Tether Anchors............. 69,74
Child Seat............................ 65,71
Cigar Lighter........................... 169
Cleaning
Wheels............................ 437
Climate Control......................... 262Clock .............................225,234
Cold Weather Operation................... 280
Compact Disc (CD) Maintenance............. 262
Compact Spare Tire...................... 331
Compass.............................. 215
Compass Calibration..................... 216
Compass Variance....................... 217
Computer, Trip/Travel.................... 213
Connector
UCI .............................. 249
Universal Consumer Interface (UCI)....... 249
Console, Overhead....................... 163
Contract, Service........................ 479
Coolant Pressure Cap (Radiator Cap).......... 424
Cooling System......................... 421
Adding Coolant (Antifreeze)............. 423
Coolant Capacity..................... 453
Coolant Level....................421,425
Disposal of Used Coolant............... 425
488 INDEX

Automatic Headlights................. 148
Brake Warning...................... 198
Bulb Replacement.................446,447
Cap Top Clearance................... 451
Cargo ............................. 152
Center Mounted Stop.................. 449
Check Engine (Malfunction Indicator)...... 200
Courtesy/Reading.................... 164
Daytime Running.................... 153
Exterior............................ 82
Fog .........................150,202,449
Four-Wheel Drive Indicator............. 297
Hazard Warning Flasher............... 380
Headlights......................... 148
High Beam......................154,197
High Beam Indicator.................. 197
High Beam/Low Beam Select............ 154
Illuminated Entry..................... 20
Instrument Cluster................... 190Interior.........................151,164
Lights On Reminder.................. 152
Low Fuel.......................... 197
Oil Pressure........................ 200
Passing............................ 154
Seat Belt Reminder................... 203
Security Alarm (Theft Alarm)............ 193
Service.........................446,447
Theft Alarm (Security Alarm)............ 193
Transfer Case....................... 297
Turn Signal.................... 82,153,447
Warning (Instrument Cluster Description) . . . 190
Limited-Slip Differential................304,431
Loading Vehicle......................... 347
Tires .............................. 320
Locks................................. 29
Automatic Door...................... 31
Child Protection...................... 34
Door.............................. 29
494 INDEX

Power Door......................... 30
Lower Anchors and Tether for CHildren
(LATCH).............................. 69
Lubrication, Body....................... 417
Lug Nuts...........................386,388
Maintenance Free Battery.................. 414
Maintenance Procedures................... 409
Maintenance Schedule.................... 458
Malfunction Indicator Light (Check Engine)..... 407
Manual Transmission
Fluid Level Check.................... 431
Lubricant Selection................... 455
Manual, Service......................... 481
Memory Seat........................... 141
Mini-Trip Computer...................... 213
Mirrors ................................ 87
Automatic Dimming................... 87
Electric Powered...................... 90Heated............................. 91
Memory........................... 141
Outside............................ 88
Rearview........................... 87
TrailerTowing ....................... 92
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................408,480
Multi-Function Control Lever............... 153
New Vehicle Break-In Period................ 78
Occupant Restraints................... 39,58,61
Occupant Restraints (Sedan)................. 58
Octane Rating, Gasoline (Fuel).............. 341
Odometer..........................193,194
Trip ...........................193,194
Oil Change Indicator..................196,212
Oil Change Indicator, Reset..............196,212
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INDEX 495

Tow Hooks, Emergency................... 397
Towing ............................350,399
24-Hour Towing Assistance............. 108
Disabled Vehicle..................... 399
Guide ............................. 354
Recreational........................ 368
Weight ............................ 354
Towing Assistance....................... 108
Traction.............................. 305
TrailerTowing .......................... 350
Cooling System Tips.................. 364
Hitches............................ 353
Minimum Requirements................ 355
Mirrors ............................ 92
Trailer and Tongue Weight.............. 354
Wiring ............................ 362
TrailerTowingGuide ..................... 354
TrailerWeight .......................... 354Transfer Case........................... 431
ElectronicallyShifted .................. 298
Fluid ............................. 455
Transmission
Automatic.......................284,432
Fluid ............................. 455
Maintenance........................ 432
Shifting ........................... 282
Transmitter Battery Service
(Remote Keyless Entry).................... 25
Transmitter Programming
(Remote Keyless Entry).................... 20
Transmitter, Remote Keyless Entry (RKE)........ 20
Tread Wear Indicators.................... 333
Trip Odometer.......................193,194
Turn Signals......................153,190,447
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INDEX 501