2005 DODGE RAM 1500 GAS service indicator

Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (see the paragraph on tread
wear indicators). Refer to the Tire and Loading Informa-
tion placard for the size designation of your tire. The
service description and load identification will be found
on the original equipment tire. Failure to use equivalent
replacement tires may adversely affect the safety, han-
dling, and ride of your vehicle. We recommend that you
contact your original equipment or an authorized tire
dealer with any questions you may have on tire specifi-
cations or capability.WARNING!
•Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspen-
sion dimensions and performance characteristics,
resulting in changes to steering, handling, and brak-
ing of your vehicle. This can cause unpredictable
handling and stress to steering and suspension com-
ponents. You could lose control and have an accident
resulting in serious injury or death. Use only the tire
and wheel sizes with load ratings approved for your
vehicle.
•Never use a tire with a smaller load index or capacity,
other than what was originally equipped on your
vehicle. Using a tire with a smaller load index could
result in tire overloading and failure. You could lose
control and have an accident.
•Failure to equip your vehicle with tires having
adequate speed capability can result in sudden tire
failure and loss of vehicle control.
276 STARTING AND OPERATING

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.” It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be driveable and not
need towing, see your dealer for service as soon as
possible.CAUTION!
Prolonged driving with the “Malfunction Indicator
Light” on could cause further damage to the emis-
sion control system. It could also affect fuel economy
and driveability. The vehicle must be serviced before
any emissions tests can be performed.
If the “Malfunction Indicator Light” is flashing,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
350 MAINTAINING YOUR VEHICLE

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 which have an I/M (Inspection and
Maintenance) requirement, this check verifies the
following: the MIL (Malfunction Indicator Lamp)
is functioning and is not on when the engine is running,
and that the OBD (On Board Diagnostic) system is ready
for testing.
Normally, the OBD system will be ready. The OBD
system maynotbe ready if your vehicle was recently
serviced, if you recently had a dead battery, or a battery
replacement. If the OBD 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 system is ready, you must do
the following:
1. Insert your ignition key into the ignition switch.
2. Turn the ignition to the ON position, but do not crank
or start the engine.
3. If you crank or start the engine, you will have to start
this test over.
4. As soon as you turn your key to the ON position, you
will see your MIL symbol come on as part of a normal
bulb check.
MAINTAINING YOUR VEHICLE 351
7

Center Mounted Stop................... 397
Check Engine......................... 165
Courtesy/Reading..................... 129
Cruise.............................. 169
Daytime Running...................... 118
Dual Wheel Assembly Rear............... 400
Fog ............................. 118,402
Four-Wheel Drive Indicator............... 245
Hazard Warning Flasher................. 320
Headlights........................... 117
High Beam........................120,166
High Beam Indicator.................... 166
High Beam/Low Beam Select............. 120
Instrument Cluster..................... 165
Intensity Control....................... 116
Interior........................... 115,129
Lights On Reminder.................... 118
Low Washer Fluid..................... 172
Passing............................. 120Seat Belt Reminder..................... 166
Service...........................390,391
Side Marker.......................... 401
Transfer Case......................... 245
Transmission Warning................173,304
Turn Signal.................. 119,166,391,395
Warning (Instrument Cluster Description)..... 165
Limited-Slip Differential................253,375
Loading Vehicle......................... 293
Tires ............................... 264
Locks................................. 15
Child Protection........................ 20
Door................................ 15
Ignition.............................. 13
Keys................................ 11
Power Door........................... 16
Steering Wheel......................... 13
Lower Anchors and Tether for CHildren (LATCH) . 60
Lubricants............................. 380
INDEX 443
10

Lubrication, Body....................... 366
Lug Nuts............................. 332
Lumbar Support........................ 110
Maintenance........................... 353
Maintenance Free Battery.................. 361
Maintenance Procedures................... 353
Maintenance Schedule.................... 408
ScheduleA......................... 422
ScheduleB.......................... 411
Malfunction Indicator Light................ 351
Manual, Service......................... 433
Manual Transmission...............238,239,376
Fluid Level Check...................375,376
Lubricant Selection...............376,377,406
Shift Speeds.......................... 238
Mirrors................................ 78
Automatic Dimming..................... 79
Electric Powered....................... 80Outside.............................. 79
Rearview............................. 78
Trailer Towing......................81,303
Modifications/Alterations, Vehicle............. 7
Mopar Parts.........................353,432
Multi-Function Control Lever............... 119
Noise Control
Maintenance.......................... 381
Tampering Prohibited................381,382
Noise Emission Warranty.................. 383
Occupant Restraints....................... 33
Octane Rating, Gasoline................... 282
Odometer..........................171,172
Trip .............................171,172
Off-Pavement Driving.................... 317
Off-Road Driving........................ 317
Oil, Engine.........................353,405
444 INDEX