check engine JEEP LIBERTY 2011 KK / 2.G Owner's Manual

rusty in appearance, the system should be drained,
flushed, and refilled with fresh coolant. Check the front
of the A/C condenser (if equipped) or radiator for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the A/C condenser (if equipped) or the back of the
radiator core.
Check the engine cooling system hoses for brittle rubber,
cracking, tears, cuts, and tightness of the connection at
the coolant recovery bottle and radiator. Inspect the
entire system for leaks.
With the engine at normal operating temperature (but
not running), check the cooling system pressure cap for
proper vacuum sealing by draining a small amount of
engine coolant (antifreeze) from the radiator drain cock.
If the cap is sealing properly, the engine coolant (anti-
freeze) will begin to drain from the coolant recoverybottle. DO NOT REMOVE THE COOLANT PRESSURE
CAP WHEN THE COOLING SYSTEM IS HOT.
Cooling System – Drain, Flush, And Refill
If the engine coolant (antifreeze) is dirty or contains a
considerable amount of sediment, clean and flush with a
reliable cooling system cleaner. Follow with a thorough
rinsing to remove all deposits and chemicals. Properly
dispose of the old engine coolant (antifreeze).
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
Selection Of Engine Coolant
Use only the manufacturer’s recommended engine cool-
ant (antifreeze). Refer to “Fluids, Lubricants, and Genu-
ine Parts” in “Maintaining Your Vehicle” for further
information.7
MAINTAINING YOUR VEHICLE 459

WARNING! (Continued)
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol based
engine coolant (antifreeze) in open containers or allow it
to remain in puddles on the ground. If ingested by a child
or pet, seek emergency assistance immediately. Clean up
any ground spills immediately.
Engine Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine idling, and warm to normal operating tempera-
ture, the level of the engine coolant (antifreeze) in the
bottle should be between the ranges indicated on the
bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
coolant freeze point or replacing engine coolant (anti-
freeze). Advise your service attendant of this. As long as
the engine operating temperature is satisfactory, the
coolant bottle need only be checked once a month.
When additional engine coolant (antifreeze) is needed to
maintain the proper level, it should be added to the
coolant bottle. Do not overfill.
462 MAINTAINING YOUR VEHICLE

Points To Remember
NOTE:When the vehicle is stopped after a few miles/
kilometers of operation, you may observe vapor coming
from the front of the engine compartment. This is nor-
mally a result of moisture from rain, snow, or high
humidity accumulating on the radiator and being vapor-
ized when the thermostat opens, allowing hot engine
coolant (antifreeze) to enter the radiator.
If an examination of your engine compartment shows no
evidence of radiator or hose leaks, the vehicle may be
safely driven. The vapor will soon dissipate.
•Do not overfill the coolant bottle.
•Check coolant freeze point in the radiator and in the
coolant recovery bottle. If engine coolant (antifreeze)
needs to be added, contents of coolant recovery bottle
must also be protected against freezing.
•If frequent engine coolant (antifreeze) additions are
required, or if the level in the coolant recovery bottle
does not drop when the engine cools, the cooling
system should be pressure tested for leaks.
•Maintain engine coolant (antifreeze) concentration at
50% HOAT engine coolant (antifreeze) (minimum)
and distilled water for proper corrosion protection of
your engine, which contains aluminum components.
•Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
•Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean.
7
MAINTAINING YOUR VEHICLE 463

NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicles oil
if it has been six months since your last oil change even
if the oil change indicator message is NOT illumi-
nated.
•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 8,000 miles (13 000 km) or six months, which-
ever comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by referring to the steps described under “Electronic Vehicle
Information Center (EVIC)/Oil Change Required” in
“Understanding Your Instrument Panel” or under “In-
strument Cluster Description/Odometer/Trip Odom-
eter” in “Understanding Your Instrument Panel” for
further information.
At Each Stop For Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
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SMAINTENANCE SCHEDULES 493

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 and the
brake master cylinder, 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.
•Proper operation of four-wheel drive vehicles de-
pends on tires of equal size, type and circumfer-
ence on each wheel. Any difference in tire size can
cause damage to the transfer case. Tire rotation
schedule should be followed to balance tire wear.
Required Maintenance Intervals
Refer to the Maintenance Schedules on the following
pages for the required maintenance intervals.
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S494 MAINTENANCE SCHEDULES

Bulbs, Light.......................... 91,484
Calibration, Compass ..................... 242
Capacities, Fluid ........................ 487
Caps, Filler Fuel .............................. 393
Oil (Engine) ........................ 449
Power Steering ...................... 339
Radiator (Coolant Pressure) ............. 461
Car Washes ............................ 473
Carbon Monoxide Warning ...............88,392
Cargo (Vehicle Loading) ................... 395
Cargo Area Cover ....................... 208
Cargo Area Features ...................... 204
Cargo Compartment ...................... 204
Light ............................. 164
Cargo Light ............................ 164
Cargo Load Floor ........................ 204
Cargo Tie-Downs ........................ 206 Cellular Phone
....................... 103,295
Certification Label ....................... 395
Changing A Flat Tire ..................... 423
Chart, Tire Sizing ........................ 358
Check Engine Light
(Malfunction Indicator Light) .............222,445
Checking Your Vehicle For Safety ............. 87
Checks, Safety ........................... 87
Child Restraint .................... 77,78,82,84
Child Restraint Tether Anchors .............81,82
Child Safety Locks ........................ 33
Clean Air Gasoline ....................... 389
Cleaning Windshield Wiper Blades ............... 455
Climate Control ......................... 295
Clock ........................... 250,269,279
Coin Holder ........................... 203
Cold Weather Operation ................... 314
Command-Trac Operation .................. 321
520 INDEX

DisposalAntifreeze (Engine Coolant) ............. 462
Engine Oil ......................... 450
Door Locks ............................. 29
Door Locks, Automatic .................... 31
Door Opener, Garage ..................... 183
Driving ............................... 333
Off-Pavement ....................... 333
Off-Road .......................... 333
On Hills ........................... 333
Through Flowing, Rising, or Shallow
Standing Water ...................... 333
When to Use Low Range ............... 333
Electric Remote Mirrors ................... 101
Electrical Outlet, Auxiliary (Power Outlet) ...... 198
Electrical Power Outlets ................... 198
Electronic Brake Control System ............. 344
Anti-Lock Brake System ................ 344 Brake Assist System
................... 346
Electronic Roll Mitigation ............... 347
Traction Control System ................ 345
Electronic Roll Mitigation (ERM) ............. 347
Electronic Speed Control (Cruise Control) ...... 171
Electronic Stability Control (ESC) ............. 352
Electronic Vehicle Information Center (EVIC) .... 235
Emergency, In Case of Hazard Warning Flasher ............... 422
Jacking ............................ 423
Jump Starting ....................... 430
Overheating ........................ 422
Emission Control System Maintenance ......... 445
Engine ............................... 443
Air Cleaner ......................... 450
Block Heater ........................ 315
Break-In Recommendations .............. 87
Checking Oil Level ................... 448
Compartment ....................... 443
522 INDEX

FlashersHazard Warning ..................... 422
Turn Signal .............. 91,162,223,485,486
Flipper Glass, Liftgate ..................... 40
Flooded Engine Starting ................... 314
Floor Console .......................... 203
Fluid Capacities ......................... 487
Fluid Leaks ............................. 91
Fluid Level Checks .................... 468,469
Automatic Transmission ................ 466
Brake ............................. 464
Cooling System ...................... 458
Engine Oil ......................... 448
Power Steering ...................... 339
Fluid, Brake ........................... 489
Fluids, Lubricants and Genuine Parts .......... 488
Fog Light Service ........................ 485
Fog Lights .................... 158,161,223,485
Folding Rear Seat ........................ 149 Four Wheel Drive
Shifting ................... 321,324,327,330
Systems ........................ 321,327
Four Wheel Drive Operation ................ 321
Freeing A Stuck Vehicle ................... 434
Front Axle (Differential) ................... 469
Fuel ................................. 388
Additives .......................... 391
Clean Air .......................... 389
Ethanol ........................... 389
Filler Cap (Gas Cap) .................. 393
Gasoline ........................... 388
Gauge ............................ 220
Materials Added ..................... 391
Methanol .......................... 389
Octane Rating .................... 388,488
Requirements ....................... 388
Specifications ....................... 488
Tank Capacity ....................... 487
524 INDEX

Electronic Stability Program (ESP) Indicator . . 356
Engine Temperature Warning............ 227
Exterior ............................ 91
Fog ......................... 161,223,485
Four-Wheel Drive Indicator . . 226,227,230,325,331
Hazard Warning Flasher ............... 422
Headlight Switch ..................... 158
Headlights ...................... 158,484
Headlights On Reminder ............... 161
Headlights On With Wipers ..........160,170
High Beam ...................... 162,223
High Beam Indicator .................. 223
High Beam/Low Beam Select ............ 162
Hill Descent Control Indicator .........226,350
Illuminated Entry ..................... 20
Instrument Cluster ................. 158,220
Lights On Reminder .................. 161
Low Fuel .......................... 220
Malfunction Indicator (Check Engine) ...... 222Oil Pressure
........................ 225
Park .............................. 158
Passing ............................ 162
Rear Servicing ....................... 486
Rear Tail ........................... 486
Seat Belt Reminder ................... 232
Service ............................ 484
Service Engine Soon
(Malfunction Indicator) ................ 222
Side Marker ........................ 485
Tire Pressure Monitoring (TPMS) .......220,378
Tow/Haul Indicator .................. 226
Traction Control ..................... 356
Transfer Case ..................... 325,331
Turn Signal .............. 91,158,162,485,486
Vanity Mirror ....................... 102
Voltage ............................ 224
Warning (Instrument Cluster Description) . . . 220
Load Floor, Cargo ....................... 204
528 INDEX

Loading Vehicle......................... 395
Tires .............................. 362
Locks ................................. 29
Auto Unlock ......................... 32
Automatic Door ...................... 31
Child Protection ...................... 33
Door .............................. 29
Power Door ......................... 30
Low Tire Pressure System .................. 378
Lower Anchors and Tether for CHildren
(LATCH) ............................ 81,82
Lubrication, Body ....................... 454
Luggage Carrier ......................... 212
Lumbar Support ........................ 144
Maintenance Free Battery .................. 451
Maintenance Procedures ................... 447
Maintenance Schedule .................... 492
Maintenance, General ..................... 447 Maintenance, Sunroof
..................... 192
Malfunction Indicator Light (Check Engine) . . 222,445
Manual Transmission Lubricant Selection ................... 489
Manual, Service ......................... 513
Marker Lights, Side ...................... 485
Master Cylinder (Brakes) .................. 464
Memory Feature (Memory Seat) ............. 151
Memory Seat ........................... 151
Memory Seats and Radio .................. 151
Methanol ............................. 389
Mini-Trip Computer ...................... 240
Mirrors ................................ 99
Automatic Dimming .................. 100
Electric Powered ..................... 101
Electric Remote ...................... 101
Heated ............................ 102
Outside ........................... 101
Rearview ........................... 99
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INDEX 529