2010 JEEP COMPASS check engine light

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 would not 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
Light” will light.
WARNING!
Driving a vehicle with the “Brake Warning Light” on
is dangerous. A significant decrease in braking per-
formance 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 immedi-
ately.
296 STARTING AND OPERATING

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 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 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.
380 MAINTAINING YOUR VEHICLE

Once a Month
•Check the 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 — 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.
•Check the manual transaxle fluid level.
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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S428 MAINTENANCE SCHEDULES

ABS (Anti-Lock Brake System).............. 297
Adding Engine Coolant (Antifreeze) .......... 395
Adding Fuel ........................... 339
Adding Washer Fluid ..................... 390
Additives, Fuel ......................... 337
Air Cleaner, Engine (Engine Air Cleaner Filter) . . . 386
Air Conditioner Maintenance ............... 388
Air Conditioning ........................ 260
Air Conditioning Controls ................. 260
Air Conditioning Filter .................... 271
Air Conditioning, Operating Tips ............ 272
Air Conditioning Refrigerant .............388,389
Air Conditioning System .............260,264,388
Air Pressure, Tires ....................... 318
Airbag .............................. 56,66
Airbag Deployment ....................... 67
Airbag Light ................... 57,64,70,82,184
Airbag Maintenance ....................... 69
Airbag, Side ...................... 59,63,65,66Airbag, Window (Side Curtain)
...........60,63,66
Alarm Light ........................... 188
Alarm System (Security Alarm) ............... 18
Alterations/Modifications, Vehicle ............. 8
Antenna, Satellite Radio ................... 253
Antifreeze (Engine Coolant) ...........394,421,422
Capacities ........................... 421
Disposal ............................ 396
Anti-Lock Brake System (ABS) .............. 297
Anti-Lock Warning Light .................. 185
Anti-Theft Security Alarm (Theft Alarm) ........ 18
Appearance Care ........................ 403
Assistance Towing ....................... 107
Automatic Dimming Mirror ................. 89
Automatic Door Locks ................... 29,31
Automatic Temperature Control (ATC) ......... 264
Automatic Transaxle ...........12,277,282,360,400
Fluid Level Check ..................... 401
Interlock System ....................... 283
456 INDEX

Cargo Light............................ 169
Cargo Load Floor ........................ 172
Cargo Tie-Downs ........................ 173
Carrier, Luggage ........................ 176
Cellular Phone ........................ 93,259
Center High Mounted Stop Light ............ 419
Chains, Tire ............................ 324
Changing A Flat Tire ..................... 360
Chart, Tire Sizing ........................ 309
Check Engine Light
(Malfunction Indicator Light) ............... 380
Checking Your Vehicle For Safety ............. 81
Checks, Safety ........................... 81
Child Restraint .......................... 72
Child Restraint Tether Anchors ............... 76
Child Restraint with Automatic Belts ........... 75
Child Safety Locks ........................ 32
Child Seat .............................. 78
Clean Air Gasoline ....................... 335 Cleaning
Wheels ............................. 405
Climate Control ......................... 259
Clock ..................... 208,222,224,227,236
Clutch ............................... 399
Clutch Fluid ........................... 399
Coin Holder ........................... 168
Compact Disc (CD) Maintenance ............. 258
Compact Spare Tire ...................... 320
Compass Variance ....................... 204
Connector UCI ................................ 247
Universal Consumer Interface (UCI) ......... 247
Console .............................. 168
Contract, Service ........................ 449
Coolant (Antifreeze) ................... 421,422
Cooling System ......................... 393
Adding Coolant (Antifreeze) .............. 395
Coolant Level ...................... 393,397
458 INDEX

Electronic Stability Program............... 303
Traction Control System ................. 299
Electronic Speed Control (Cruise Control) ...... 148
Electronic Stability Program (ESP) ............ 303
Electronic Vehicle Information Center (EVIC) .... 196
Emergency, In Case of Jacking ............................. 360
Jump Starting ......................... 366
Towing ............................. 371
Emission Control System Maintenance ......380,426
Engine ............................... 378
Block Heater ......................... 279
Break-In Recommendations ................ 80
Checking Oil Level ..................... 383
Cooling ............................. 393
Exhaust Gas Caution .................. 81,339
Fuel Requirements ..................... 335
Jump Starting ......................... 366
Oil ........................... 383,421,422Oil Change Interval
.................... 384
Oil Filler Cap ...................... 378,385
Oil Filter ............................ 422
Oil Selection .......................... 384
Oil Synthetic ......................... 385
Overheating .......................... 358
Temperature Gauge .................... 189
Enhanced Accident Response Feature .......... 67
Exhaust Gas Caution ..............36,81,339,391
Exhaust System ....................... 81,391
Exterior Lights .......................... 83
Filters Air Cleaner .......................... 386
Air Conditioning ...................... 271
Engine Oil ........................ 386,422
Flashers .............................. 358
Hazard Warning ....................... 358
Turn Signal ...................... 83,184,416
460 INDEX

Flat Tire Stowage........................ 365
Flooded Engine Starting ................... 279
Fluid, Brake ........................... 423
Fluid Capacities ......................... 421
Fluid Leaks ............................. 83
Fluid Level Checks Automatic Transaxle .................... 401
Power Steering ........................ 293
Fluids ................................ 422
Fluids, Lubricants and Genuine Parts .......... 422
Fog Lights ....................... 142,195,415
Folding Rear Seat ........................ 136
Folding Rear Seat (Sedan) .................. 136
Four Wheel Drive ....................... 287
Systems ............................. 287
Four Wheel Drive Operation ................ 287
Freeing A Stuck Vehicle ................... 370
Fuel .............................. 335,422
Adding ............................. 339 Additives
............................ 337
Capacity ............................ 421
Clean Air ............................ 335
Filler Cap (Gas Cap) .................... 339
Gasoline ............................ 335
Gauge .............................. 183
Light ............................... 184
Octane Rating ........................ 335
Requirements ......................... 335
Tank Capacity ........................ 421
Fuel System Caution ..................... 340
Fueling ............................... 339
Fuses ................................ 408
Garage Door Opener (HomeLink) ........... 152
Gas Cap (Fuel Filler Cap) ............339,341,379
Gasoline, Clean Air ...................... 335
Gasoline (Fuel) ....................... 335,421
Gasoline, Reformulated ................... 336
10
INDEX 461

Lights.............................. 83,140
Airbag ...................... 57,64,70,82,184
Alarm .............................. 188
Anti-Lock ........................... 185
Back-Up ............................ 416
Brake Warning ........................ 186
Bulb Replacement ...................... 413
Cargo .............................. 169
Center Mounted Stop ................... 419
Daytime Running ...................... 142
Dimmer Switch, Headlight ............... 140
Electronic Stability Program (ESP) Indicator . . . 304
Engine Temperature Warning .............. 186
Exterior .............................. 83
Fog .......................... 142,195,415
Headlight Switch ...................... 140
Headlights ........................... 140
High Beam Indicator .................... 185
Instrument Cluster ..................... 140 License
............................. 417
Lights On Reminder .................... 141
Low Fuel ............................ 184
Malfunction Indicator (Check Engine) ........ 194
Map Reading ......................... 144
Oil Pressure .......................... 184
Seat Belt Reminder ..................... 185
Security Alarm (Theft Alarm) ............18,188
Theft Alarm (Security Alarm) .............. 188
Tire Pressure Monitoring (TPMS) ........... 190
Traction Control ....................... 304
Turn Signal ................... 83,140,142,416
Voltage ............................. 183
Warning (Instrument Cluster Description) ..... 183
Loading Vehicle ...................... 341,343
Capacities ........................... 343
Tires ............................... 313
464 INDEX