check engine light DODGE CHALLENGER SRT 2012 3.G User Guide

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
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
”gASCAP” message will display in the odometer or a
“Check Gascap” message will display in the Electronic
Vehicle Information Center (EVIC) (if equipped). If this
occurs, tighten the fuel filler cap properly and press the
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MAINTAINING YOUR VEHICLE 367

Trip Odometer 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 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 may
notbe 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.
368 MAINTAINING YOUR VEHICLE

Once a Month
•Check tire pressure and look for unusual wear or
damage.
•Inspect the battery, and clean and tighten the terminals
as required.
•Check the fluid levels of the coolant reservoir, brake
master cylinder, and power steering, and add as
needed.
•Check all lights and other electrical items for correct
operation.At Each Oil Change
•Change the engine oil filter.
•Inspect the brake hoses and lines.
CAUTION!
Failure to perform the required maintenance items
may result in damage to the vehicle.
Required Maintenance Intervals
Refer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
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S420 MAINTENANCE SCHEDULES

Brightness, Interior Lights.................. 145
Bulb Replacement ..................... 407,408
Bulbs, Light .......................... 84,407
Calibration, Compass ..................... 200
Capacities, Fluid ........................ 413
Caps, Filler Fuel .............................. 334
Oil (Engine) ........................ 372
Power Steering ...................... 284
Radiator (Coolant Pressure) ............. 386
Car Washes ............................ 394
Carbon Monoxide Warning ...............81,333
Cargo (Vehicle Loading) ................... 335
Cellular Phone ........................ 93,241
Center High Mounted Stop Light ............ 412
Certification Label ....................... 336
Chains, Tire ............................ 317
Chart, Tire Sizing ........................ 302 Check Engine Light
(Malfunction Indicator Light)
............... 368
Checking Your Vehicle For Safety ............. 80
Checks, Safety ........................... 80
Child Restraint .................... 70,72,75,77
Child Restraint Tether Anchors .............74,75
Clean Air Gasoline ....................... 329
Cleaning Wheels ............................ 396
Windshield Wiper Blades ............... 379
Clock ............................. 208,217
Cold Weather Operation ................... 261
Compact Disc (CD) Maintenance ............. 241
Compass .............................. 200
Compass Calibration ..................... 200
Compass Variance ....................... 201
Computer, Trip/Travel .................... 193
450 INDEX

Disabled Vehicle Towing................... 360
Disposal Antifreeze (Engine Coolant) ............. 387
Engine Oil ......................... 373
Door Locks ............................. 31
Door Locks, Automatic .................... 33
Door Opener, Garage ..................... 154
Driving On Slippery Surfaces .................. 279
Through Flowing, Rising, or Shallow
Standing Water ...................... 281
Electric Remote Mirrors .................... 91
Electrical Power Outlets ................... 165
Electronic Brake Control System ............. 291
Electronic Power Distribution Center (Fuses) .... 402
Electronic Speed Control (Cruise Control) ...... 150
Electronic Stability Control (ESC) ............. 295
Electronic Throttle Control Warning Light ...... 179Electronic Vehicle Information Center (EVIC)
.... 188
Emergency Deck Lid Release ................ 42
Emergency Trunk Release ................... 42
Emergency, In Case of Freeing Vehicle When Stuck ............. 357
Hazard Warning Flasher ............... 342
Jump Starting ....................... 353
Overheating ........................ 342
Towing ............................ 360
Emission Control System Maintenance ......... 368
Engine ............................... 366
Air Cleaner ......................... 373
Block Heater ........................ 263
Break-In Recommendations .............. 79
Checking Oil Level ................... 371
Compartment ....................... 366
Coolant (Antifreeze) ................ 384,414
Cooling ........................... 383
Exhaust Gas Caution ................81,333
452 INDEX

Fluid Level ChecksAutomatic Transmission ................ 392
Brake ............................. 389
Cooling System ...................... 384
Engine Oil ......................... 371
Power Steering ...................... 284
Fluid, Brake ........................... 415
Fluids ................................ 414
Fluids, Lubricants and Genuine Parts .......... 414
Fog Lights .......................... 142,182
Folding Rear Seat ........................ 137
Freeing A Stuck Vehicle ................... 357
Fuel ................................. 329
Adding ........................... 334
Additives .......................... 331
Clean Air .......................... 329
Ethanol ........................... 330
Filler Cap (Gas Cap) .................. 334
Gasoline ........................... 329 Gauge
............................ 178
Materials Added ..................... 331
Methanol .......................... 330
Octane Rating .................... 329,414
Requirements ....................... 329
Specifications ....................... 414
Tank Capacity ....................... 413
Fuel System Caution ..................... 334
Fueling ............................... 334
Fuses ................................ 399
Garage Door Opener (HomeLink®) ........... 154
Gas Cap (Fuel Filler Cap) ...............334,367
Gasoline (Fuel) ......................... 329
Gasoline, Clean Air ...................... 329
Gasoline, Reformulated ................... 329
Gauges Coolant Temperature .................. 179
Fuel .............................. 178
454 INDEX

Low Fuel.......................... 187
Malfunction Indicator (Check Engine) ...... 187
Map Reading ..................... 144,153
Oil Pressure ........................ 181
Parade Mode (Daytime Brightness) ........ 145
Passing ............................ 144
Reading ........................ 144,153
Seat Belt Reminder ................... 182
Security Alarm (Theft Alarm) ............ 185
Service ......................... 407,408
Service Engine Soon
(Malfunction Indicator) ................ 187
Theft Alarm (Security Alarm) ............ 185
Tire Pressure Monitoring (TPMS) .......185,321
Traction Control ..................... 299
Turn Signal ................. 84,142,143,180
Vanity Mirror ........................ 92
Voltage ............................ 178
Warning (Instrument Cluster Description) . . . 178 Loading Vehicle
...................... 335,337
Capacities .......................... 337
Tires .............................. 306
Locks ................................. 31
Auto Unlock ......................... 33
Automatic Door ...................... 33
Door .............................. 31
Power Door ......................... 32
Low Tire Pressure System .................. 321
Lower Anchors and Tether for
CHildren (LATCH) ..................... 74,75
Lubrication, Body ....................... 379
Maintenance Free Battery .................. 374
Maintenance Procedures ................... 370
Maintenance Schedule .................... 418
Maintenance, General ..................... 370
Maintenance, Sunroof ..................... 165
Malfunction Indicator Light (Check Engine) . . 187,368
458 INDEX

Manual Transmission...............263,391,393
Fluid Level Check ................. 391,393
Shift Speeds ........................ 265
Manual, Service ......................... 443
Map/Reading Lights .................. 144,153
Master Cylinder (Brakes) .................. 389
Methanol ............................. 330
Mini-Trip Computer ...................... 193
Mirrors ................................ 89
Automatic Dimming ................... 89
Electric Powered ...................... 91
Electric Remote ....................... 91
Exterior Folding ...................... 90
Heated ............................. 91
Outside ............................ 90
Vanity ............................. 92
Modifications/Alterations, Vehicle ............. 7
Monitor, Tire Pressure System ............... 321
Mopar Parts ......................... 369,442MTBE/ETBE
........................... 330
Multi-Function Control Lever ............... 142
New Vehicle Break-In Period ................ 79
Occupant Restraints ................... 42,62,66
Occupant Restraints (Sedan) ...........59,60,62,65
Octane Rating, Gasoline (Fuel) ............329,414
Odometer ............................. 178
Trip .............................. 178
Oil Change Indicator ..................... 192
Oil Change Indicator, Reset ................. 192
Oil Filter, Change ........................ 373
Oil Filter, Selection ....................... 373
Oil, Engine ......................... 371,414
Capacity ........................... 413
Change Interval ..................... 371
Checking .......................... 371
Dipstick ........................... 371
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INDEX 459