check engine JEEP LIBERTY 2012 KK / 2.G Owner's Manual

Cooling System
WARNING!
•You or others can be badly burned by hot coolant
or steam from your radiator. If you see or hear
steam coming from under the hood, do not open
the hood until the radiator has had time to cool.
Never try to open a cooling system pressure cap
when the radiator is hot.
Engine Coolant Checks
Check the engine coolant (antifreeze) protection every
12 months (before the onset of freezing weather, where
applicable). If the engine coolant (antifreeze) is dirty or
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 anyaccumulation 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 recovery
bottle. DO NOT REMOVE THE COOLANT PRESSURE
CAP WHEN THE COOLING SYSTEM IS HOT.
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MAINTAINING YOUR VEHICLE 473

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.
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.
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MAINTAINING YOUR VEHICLE 477

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.
•Do not change the thermostat for Summer or Winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Brake System
In order to assure brake system performance, all brake
system components should be inspected periodically.
Refer to the “Maintenance Schedule” for the proper
maintenance intervals.
478 MAINTAINING YOUR VEHICLE

NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s
oil if it has been six months since your last oil change,
even if the oil change indicator message is NOT
illuminated.
•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 507

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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S508 MAINTENANCE SCHEDULES

Bulbs, Light.......................... 92,498
Calibration, Compass ..................... 246
Capacities, Fluid ........................ 502
Caps, Filler Fuel .............................. 404
Oil (Engine) ........................ 464
Power Steering ...................... 350
Radiator (Coolant Pressure) ............. 476
Car Washes ............................ 487
Carbon Monoxide Warning ...............89,403
Cargo (Vehicle Loading) ................... 406
Cargo Area Cover ....................... 212
Cargo Area Features ...................... 208
Cargo Compartment ...................... 208
Light ............................. 164
Cargo Light ............................ 164
Cargo Load Floor ........................ 208
Cargo Tie-Downs ........................ 210 Cellular Phone
....................... 103,301
Certification Label ....................... 406
Changing A Flat Tire ..................... 435
Chart, Tire Sizing ........................ 369
Check Engine Light
(Malfunction Indicator Light) .............226,459
Checking Your Vehicle For Safety ............. 88
Checks, Safety ........................... 88
Child Restraint .................... 78,79,83,85
Child Restraint Tether Anchors .............82,83
Child Safety Locks ........................ 33
Clean Air Gasoline ....................... 400
Cleaning Wheels ............................ 489
Windshield Wiper Blades ............... 469
Climate Control ......................... 301
Clock ........................... 256,275,284
Coin Holder ........................... 207
Cold Weather Operation ................... 320
536 INDEX

DisposalAntifreeze (Engine Coolant) ............. 477
Engine Oil ......................... 464
Door Locks ............................. 30
Door Locks, Automatic .................... 32
Door Opener, Garage ..................... 184
Driving ............................ 344,345
Off-Pavement ....................... 345
Off-Road .......................... 345
On Hills ........................... 345
Through Flowing, Rising, or Shallow
Standing Water ...................... 345
When to Use Low Range ............... 345
Electric Remote Mirrors ................... 101
Electrical Outlet, Auxiliary (Power Outlet) ...... 202
Electrical Power Outlets ................... 202
Electronic Brake Control System ............. 355
Anti-Lock Brake System ................ 356 Brake Assist System
................... 357
Electronic Roll Mitigation ............... 358
Traction Control System ................ 356
Electronic Roll Mitigation (ERM) ............. 358
Electronic Speed Control (Cruise Control) ...... 173
Electronic Stability Control (ESC) ............. 363
Electronic Vehicle Information Center (EVIC) .... 239
Emergency, In Case of Hazard Warning Flasher ............... 434
Jacking ............................ 435
Jump Starting ....................... 444
Overheating ........................ 434
Emission Control System Maintenance ......... 459
Engine ............................... 457
Air Cleaner ......................... 465
Block Heater ........................ 321
Break-In Recommendations .............. 88
Checking Oil Level ................... 462
Compartment ....................... 457
538 INDEX

FlashersHazard Warning ..................... 434
Turn Signal .............. 92,162,227,500,501
Flipper Glass, Liftgate ..................... 40
Flooded Engine Starting ................... 320
Floor Console .......................... 207
Fluid Capacities ......................... 502
Fluid Leaks ............................. 92
Fluid Level Checks .................... 482,483
Automatic Transmission ................ 480
Brake ............................. 479
Cooling System ...................... 473
Engine Oil ......................... 462
Power Steering ...................... 350
Fluid, Brake ........................... 504
Fluids, Lubricants and Genuine Parts .......... 503
Fog Light Service ........................ 500
Fog Lights .................... 158,161,227,500
Folding Rear Seat ........................ 149 Four Wheel Drive
Shifting ................... 333,335,339,341
Systems ........................ 333,339
Four Wheel Drive Operation ................ 333
Freeing A Stuck Vehicle ................... 448
Front Axle (Differential) ................... 483
Fuel ................................. 399
Additives .......................... 402
Clean Air .......................... 400
Ethanol ........................... 400
Filler Cap (Gas Cap) .................. 404
Gasoline ........................... 399
Gauge ............................ 224
Materials Added ..................... 402
Methanol .......................... 400
Octane Rating .................... 399,503
Requirements ....................... 399
Specifications ....................... 503
Tank Capacity ....................... 502
540 INDEX

Electronic Stability Program (ESP) Indicator . . 366
Engine Temperature Warning............ 231
Exterior ............................ 92
Fog ......................... 161,227,500
Four-Wheel Drive Indicator . . 230,231,233,336,342
Hazard Warning Flasher ............... 434
Headlight Switch ..................... 158
Headlights ...................... 158,499
Headlights On Reminder ............... 161
Headlights On With Wipers ..........160,170
High Beam ...................... 162,227
High Beam Indicator .................. 227
High Beam/Low Beam Select ............ 162
Hill Descent Control Indicator .........230,361
Illuminated Entry ..................... 20
Instrument Cluster ................. 158,224
Lights On Reminder .................. 161
Low Fuel .......................... 224
Malfunction Indicator (Check Engine) ...... 226Oil Pressure
........................ 229
Park .............................. 158
Passing ............................ 162
Rear Servicing ....................... 501
Rear Tail ........................... 501
Seat Belt Reminder ................... 236
Service ......................... 498,499
Service Engine Soon
(Malfunction Indicator) ................ 226
Side Marker ........................ 500
Tire Pressure Monitoring (TPMS) .......224,389
Tow/Haul Indicator .................. 230
Traction Control ..................... 366
Transfer Case ..................... 336,342
Turn Signal .............. 92,158,162,500,501
Vanity Mirror ....................... 102
Voltage ............................ 228
Warning (Instrument Cluster Description) . . . 224
Load Floor, Cargo ....................... 208
544 INDEX

Loading Vehicle......................... 406
Tires .............................. 373
Locks ................................. 30
Auto Unlock ......................... 32
Automatic Door ...................... 32
Child Protection ...................... 33
Door .............................. 30
Power Door ......................... 31
Low Tire Pressure System .................. 389
Lower Anchors and Tether for
CHildren (LATCH) ..................... 82,83
Lubrication, Body ....................... 468
Luggage Carrier ......................... 216
Lumbar Support ........................ 144
Maintenance Free Battery .................. 466
Maintenance Procedures ................... 461
Maintenance Schedule .................... 506
Maintenance, General ..................... 461 Maintenance, Sunroof
..................... 196
Malfunction Indicator Light (Check Engine) . . 226,459
Manual Transmission Lubricant Selection ................... 504
Manual, Service ......................... 529
Marker Lights, Side ...................... 500
Master Cylinder (Brakes) .................. 479
Memory Feature (Memory Seat) ............. 151
Memory Seat ........................... 151
Memory Seats and Radio .................. 151
Methanol ............................. 400
Mini-Trip Computer ...................... 244
Mirrors ................................ 99
Automatic Dimming .................. 100
Electric Powered ..................... 101
Electric Remote ...................... 101
Heated ............................ 102
Outside ........................... 101
Rearview ........................... 99
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INDEX 545