check engine light JEEP PATRIOT 2007 1.G User Guide

BRAKE SYSTEM
Your vehicle is equipped with power assisted brakes as
standard equipment. In the event power assist is lost for
any reason (for example, repeated brake applications
with the engine off), the brakes will still function. How-
ever, the effort required to brake the vehicle will be much
greater than that required with the power system oper-
ating.
WARNING!
Riding the brakes can lead to brake failure and
possibly an accident. Driving with your foot resting
or riding on the brake pedal can result in abnormally
high brake temperatures, excessive lining wear, and
possible brake damage. You wouldn't have your full
braking capacity in an emergency.If either of the two hydraulic systems lose normal capa-
bility, the remaining system will still function with some
loss of overall braking effectiveness. This will be evident
by increased pedal travel during application and greater
pedal force required to slow or stop. In addition, if the
malfunction is caused by an internal leak, as the brake
fluid in the master cylinder drops, the brake warning
indicator will light.
WARNING!
Driving a vehicle with the brake light on is danger-
ous. A significant decrease in braking performance or
vehicle stability during braking may occur. It will
take you longer to stop the vehicle or will make your
vehicle harder to control. You could have an accident.
Have the vehicle checked immediately.
272 STARTING AND OPERATING

Towing Tips Ð Automatic Transmission
The automatic transmission fluid and filter should be
changed if you REGULARLY tow a trailer for more than
45 minutes of continuous operation. See Schedule ªBº in
section 8 of this manual for transmission fluid change
intervals.
NOTE:Check the automatic transmission fluid level
before towing.
Towing Tips Ð Electronic Speed Control (If
Equipped)
þ
Don't use in hilly terrain or with heavy loads.
þWhen using the speed control, if you experience speed
drops greater than 10 mph (16 km/h), disengage until
you can get back to cruising speed.
þUse speed control in flat terrain and with light loads to
maximize fuel efficiency.
Towing Tips Ð Cooling System
To reduce potential for engine and transmission over-
heating, take the following actions:
þCity Driving
When stopped for short periods of time, put transmission
in neutral but do not increase engine idle speed.
þHighway Driving
Reduce speed.
þAir Conditioning
Turn off temporarily.
þrefer to Cooling System Operating information in the
Maintenance section of this manual for more informa-
tion.
STARTING AND OPERATING 321
5

Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possible loose or
improperly installed. A GASCAP message will be dis-
played in the instrument cluster. Tighten the gas cap until
a9clicking9sound is heard. This is an indication that the
gas cap is properly tightened. Press the trip odometer
reset button to turn off the message. If the problem
persists, the message will appear the next time the
vehicle is started. This might indicate a damaged cap. If
the problem is detected twice in a row, the system will
turn on the Malfunction Indicator Light (MIL). Resolving
the problem will turn the MIL light off.
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 Light)
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.
344 MAINTAINING YOUR VEHICLE

Once a Month
²Check tire pressure and look for unusual wear or
damage.
²Inspect the battery and clean and tighten the terminals
as required.
²Check the fluid levels of coolant reservoir, brake/
clutch master cylinder, and manual transaxle and add
as needed.
²Check all lights and all other electrical items for correct
operation.
At Each Oil Change
²Change the engine oil filter.
²Inspect the exhaust system.
²Inspect the brake hoses.
²Inspect the CV joints (if equipped) and front suspen-
sion components.
²Check the manual transmission fluid level (if
equipped).
²Check the coolant level, hoses, and clamps.
CAUTION!
Do not check the automatic transaxle fluid. It must be
check by a trained service technician every 15,000
miles and if required only the recommended fluid be
added. Refer to the section ªFluids, Lubricants And
Genuine Partsº for the proper fluid.
394 MAINTENANCE SCHEDULES
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ABS (Anti-Lock Brake System).............. 273
Adding Engine Coolant (Antifreeze).......... 362
Adding Fuel........................... 307
Adding Washer Fluid..................126,159
Additives, Fuel......................... 305
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 353
Air Conditioner Maintenance............... 356
Air Conditioning Controls................. 223
Air Conditioning, Operating Tips............ 229
Air Conditioning Refrigerant.............356,357
Air Conditioning System................223,356
Air Pressure, Tires....................... 286
Airbag................................ 49
Airbag Deployment.....................54,56
Airbag Light.....................54,58,70,170
Airbag Maintenance....................... 57
Airbag, Side............................ 55
Airbag, Window (Side Curtain).............50,55
Alarm System (Security Alarm)............30,173Alignment and Balance................... 294
Alterations/Modifications, Vehicle............. 8
Antenna, Satellite Radio................... 220
Antifreeze (Engine Coolant)..............361,388
Capacities........................... 388
Disposal............................ 363
Anti-Lock Brake System (ABS)............136,273
Anti-Theft Security Alarm (Theft Alarm)........ 30
Appearance Care........................ 371
Automatic Door Locks...................20,21
Automatic Transaxle...........12,237,240,326,368
Fluid Level Check...................... 369
Interlock System.....................17,241
Overheating.......................... 326
Selection Of Lubricant................... 368
Shifting............................. 242
Special Additives...................... 369
Ball Joints............................. 357
422 INDEX

CD (Compact Disc) Player Maintenance........ 222
Cellular Phone........................82,223
Center High Mounted Stop Light............ 387
Chains, Tire............................ 301
Changing A Flat Tire..................... 326
Chart, Tire Sizing........................ 278
Check Engine Light (Malfunction Indicator Light) . 344
Child Restraint.......................... 60
Child Restraint Tether Anchors............... 64
Child Restraint with Automatic Belts........... 63
Child Safety Locks........................ 23
Child Seat.............................. 66
Clean Air Gasoline....................... 303
Cleaning
Wheels............................. 373
Climate Control......................... 223
Clock........................190,193,201,213
Clutch............................... 367
Clutch Fluid........................... 367Coin Holder........................... 151
Compact Disc (CD) Maintenance............. 222
Compact Spare Tire...................... 289
Compass.............................. 188
Compass Calibration..................... 188
Compass Variance....................... 186
Console.............................. 151
Contract, Service........................ 414
Coolant (Antifreeze)...................... 388
Cooling System......................... 360
Adding Coolant (Antifreeze).............. 362
Coolant Level......................360,363
Disposal of Used Coolant................ 363
Drain, Flush, and Refill.................. 360
Inspection........................... 363
Points to Remember.................362,364
Pressure Cap......................... 362
Selection of Coolant (Antifreeze)........... 361
Corrosion Protection..................... 371
424 INDEX

Headlight Switch...................... 119
Headlights........................... 119
High Beam Indicator.................... 170
Instrument Cluster..................... 119
License............................. 386
Lights On Reminder.................... 120
Low Fuel............................ 170
Malfunction Indicator (Check Engine)........ 177
Map Reading......................... 118
Oil Pressure.......................... 170
Seat Belt Reminder..................... 171
Security Alarm (Theft Alarm).............. 31
Theft Alarm (Security Alarm).............. 173
Traction Control....................... 141
Turn Signal.................. 119,121,170,384
Voltage............................. 169
Warning (Instrument Cluster Description)..... 169
Loading Vehicle......................... 309
Tires ............................... 281Locks
Child Protection........................ 23
Door................................ 18
Power Door........................... 19
Steering Wheel......................... 17
Lubrication, Body....................... 358
Luggage Rack (Roof Rack)................. 160
Lumbar Support........................ 109
Maintenance Free Battery.................. 354
Maintenance, General..................... 347
Maintenance Procedures................... 347
Maintenance Schedule.................... 392
Schedule ªAº......................... 405
Schedule ªBº......................... 395
Malfunction Indicator Light (Check Engine) . . 177,344
Manual, Service......................... 416
Manual Transaxle..................238,244,369
Downshifting......................... 245
430 INDEX

Fluid Level Check...................370,371
Frequency of Fluid Change............370,371
Lubricant Selection...............369,370,371
Map/Reading Lights..................... 118
Master Cylinder (Brakes).................. 367
Mirrors................................ 78
Electric Powered....................... 80
Exterior Folding........................ 80
Outside.............................. 78
Rearview............................. 78
Vanity............................... 82
Modifications/Alterations, Vehicle............. 8
Monitor, Tire Pressure System............... 294
Mopar Parts.........................346,415
Multi-Function Control Lever............... 119
Navigation Radio........................ 213
Navigation System....................... 213
New Vehicle Break-In Period................ 69Occupant Restraints....................... 36
Octane Rating, Gasoline (Fuel).............. 303
Odometer............................. 176
Trip .............................174,176
Off-Pavement Driving (Off-Road)............ 247
Off-Road Driving (Off-Pavement)............ 247
Oil, Engine.........................347,388
Capacity............................ 388
Change Interval....................... 348
Checking............................ 347
Disposal............................ 350
Filter............................... 350
Identification Logo..................... 349
Materials Added to..................... 350
Recommendation...................349,388
Synthetic............................ 350
Viscosity............................ 349
Oil Pressure Light....................... 170
Onboard Diagnostic System..............343,344
INDEX 431
10

Opener, Garage Door (HomeLinkt) ........... 130
Operator Manual (Owner's Manual)............ 5
Outside Air Intake....................... 230
Overdrive............................. 243
Overheating, Engine...................... 324
Owner's Manual (Operator Manual).........5,416
Paint Care............................. 371
Panic Alarm............................ 26
Parking Brake.......................... 270
Passing Light........................... 123
Personal Settings........................ 183
Pets.................................. 68
Phone, Cellular.......................... 82
Phone, Hands-Free (UConnectŸ)............. 82
Placard, Tire and Loading Information......... 281
Power
Distribution Center (Fuses)............... 376
Door Locks........................... 19Mirrors.............................. 80
Outlet (Auxiliary Electrical Outlet).......... 149
Steering..........................276,357
Steering, Checking..................... 357
Sunroof............................. 146
Transfer Unit......................... 371
Windows............................. 34
Power Steering Fluid..................... 389
Power Transfer Unit...................... 371
Pregnant Women and Seat Belts.............. 49
Preparation for Jacking.................... 327
Pretensioners
Seat Belts............................. 46
Programmable Electronic Features......131,135,183
Programming Transmitters (Remote
Keyless Entry).....................27,131,135
Radial Ply Tires......................... 289
Radio Broadcast Signals................... 189
432 INDEX