cooling JEEP LIBERTY 2012 KK / 2.G User Guide

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.
7
MAINTAINING YOUR VEHICLE 473

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.
CAUTION!
•Mixing of engine coolant (antifreeze) other than
specified HOAT engine coolant (antifreeze), may
result in engine damage and may decrease corro-
sion protection. If a non-HOAT engine coolant
(antifreeze) is introduced into the cooling system
in an emergency, it should be replaced with the
specified engine coolant (antifreeze) as soon as
possible.
•Do not use water alone or alcohol-based engine
coolant (antifreeze) products. Do not use addi-
tional rust inhibitors or antirust products, as they
may not be compatible with the radiator engine
coolant and may plug the radiator.
474 MAINTAINING YOUR VEHICLE

CAUTION! (Continued)
•This vehicle has not been designed for use with
Propylene Glycol based engine coolant (anti-
freeze). Use of Propylene Glycol based engine
coolant (antifreeze) is not recommended.
Adding Engine Coolant
Your vehicle has been built with an improved engine
coolant (antifreeze) that allows extended maintenance
intervals. This engine coolant (antifreeze) can be used up
to five years or 104,000 miles (169 000 km) before
replacement. To prevent reducing this extended mainte-
nance period, it is important that you use the same
engine coolant (antifreeze) throughout the life of your
vehicle.Please review these recommendations for using Hybrid
Organic Additive Technology (HOAT) engine coolant
(antifreeze). When adding engine coolant (antifreeze):
•The manufacturer recommends using MOPAR

Antifreeze/Coolant 5 Year/100,000 Mile Formula
HOAT (Hybrid Organic Additive Technology) or
equivalent.
•Mix a minimum solution of 50% HOAT engine coolant
and distilled water. Use higher concentrations (not to
exceed 70%) if temperatures below 34°F (37°C) are
anticipated.
•Use only high purity water such as distilled or deion-
ized water when mixing the water/engine coolant
(antifreeze) solution. The use of lower quality water
will reduce the amount of corrosion protection in the
engine cooling system.7
MAINTAINING YOUR VEHICLE 475

Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing engine coolant (antifreeze) types will
decrease the life of the engine coolant (antifreeze) and
will require more frequent coolant changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to ensure that coolant will return to the
radiator from the coolant recovery bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
•The warning words “DO NOT OPEN HOT” on
the cooling system pressure cap are a safety pre-
caution. Never add engine coolant (antifreeze)
when the engine is overheated. Do not loosen or
remove the cap to cool an overheated engine. Heat
causes pressure to build up in the cooling system.
To prevent scalding or injury, do not remove the
pressure cap while the system is hot or under
pressure.
•Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
476 MAINTAINING YOUR VEHICLE

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

7. Pull the appropriate bulb(s) out of the back plate and
insert the replacement bulb(s).
8. Install the back plate and screws into the taillamp
housing.9. Connect the electrical connector.
10. Install the taillamp housing and screws.
11. Close the liftgate.
FLUID CAPACITIES
U.S.
Metric
Fuel (Approximate) 19.5 Gallons73.8 Liters
Engine Oil with Filter
3.7 Liter Engine (SAE 5W-20, API Certified) 5 Quarts4.7 Liters
Cooling System *
3.7 Liter Engine (MOPAR Antifreeze/Engine Coolant 5
Year/100,000 Mile Formula or equivalent) 14 Quarts
13.3 Liters
* Includes heater and coolant recovery bottle filled to MAX level.
502 MAINTAINING YOUR VEHICLE

Command-Trac Operation.................. 333
Compact Disc (CD) Maintenance ............. 300
Compact Spare Tire ...................... 381
Compass .............................. 244
Compass Calibration ..................... 246
Compass Variance ....................... 246
Computer, Trip/Travel .................... 244
Console .............................. 207
Console, Floor .......................... 207
Contract, Service ........................ 527
Coolant Pressure Cap (Radiator Cap) .......... 476
Cooling System ......................... 473
Adding Coolant (Antifreeze) ............. 475
Coolant Capacity ..................... 502
Coolant Level .................... 473,477
Disposal of Used Coolant ............... 477
Drain, Flush, and Refill ................ 474
Inspection .......................... 477
Points to Remember .................. 477 Pressure Cap
........................ 476
Selection of Coolant (Antifreeze) ....474,502,503
Corrosion Protection ..................... 486
Cruise Light ........................... 236
Cupholders ............................ 205
Customer Assistance ..................... 525
Data Recorder, Event ...................... 77
Daytime Running Lights ................... 161
Dealer Service .......................... 461
Defroster, Rear Window ................... 215
Defroster, Windshield ................91,303,309
Delay (Intermittent) Wipers ................. 166
Diagnostic System, Onboard ................ 458
Dimmer Switch, Headlight ................. 162
Dipsticks Oil (Engine) ........................ 462
Power Steering ...................... 350
Disabled Vehicle Towing ................... 450
10
INDEX 537

Coolant (Antifreeze)................ 473,503
Cooling ........................... 473
Exhaust Gas Caution ................89,403
Fails to Start ........................ 320
Flooded, Starting ..................... 320
Fuel Requirements .................... 399
Jump Starting ....................... 444
Oil ......................... 462,502,503
Oil Change Interval .............236,243,463
Oil Filler Cap ....................... 464
Oil Filter ........................... 465
Oil Filter Disposal .................... 464
Oil Selection ..................... 463,502
Oil Synthetic ........................ 464
Overheating ........................ 434
Starting ........................... 319
Temperature Gauge ................... 231
Engine Oil Viscosity ...................... 464 Engine Oil Viscosity Chart
................. 464
Enhanced Accident Response Feature .......... 73
Entry System, Illuminated .................. 20
Ethanol ............................... 400
Event Data Recorder ...................... 77
Exhaust Gas Caution ................... 89,403
Exhaust System ....................... 89,470
Exterior Finish Care ...................... 487
Exterior Lights .......................... 92
Fabric Care ............................ 490
Filters Air Cleaner ......................... 465
Air Conditioning .................. 312,468
Engine Oil ....................... 465,503
Engine Oil Disposal ................... 464
Finish Care ............................ 487
Flash-To-Pass ........................... 162
10
INDEX 539

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

Compact Spare...................... 381
General Information .................. 377
High Speed ......................... 380
Inflation Pressures .................... 378
Jacking ............................ 435
Life of Tires ........................ 384
Load Capacity .................... 373,374
Pressure Monitor System (TPMS) ......... 389
Pressure Warning Light ................ 224
Quality Grading ..................... 531
Radial ............................ 380
Replacement ........................ 385
Rotation ........................... 388
Safety ............................. 368
Sizes ............................. 369
Spare Tire .......................... 436
Spinning ........................... 383
Tread Wear Indicators ................. 384
To Open Hood .......................... 156 Tongue Weight/Trailer Weight
.............. 417
Torque Converter Clutch .................. 332
Tow/Haul Indicator Light ................. 230
Towing ............................ 409,450
24-Hour Towing Assistance ............. 117
Disabled Vehicle ..................... 450
Guide ............................. 415
Recreational ........................ 424
Weight ............................ 415
Towing Assistance ....................... 117
Traction Control ......................... 356
Trailer Towing .......................... 409
Cooling System Tips .................. 424
Hitches ............................ 414
Minimum Requirements ................ 418
Trailer and Tongue Weight .............. 417
Wiring ............................ 421
Trailer Towing Guide ..................... 415
Trailer Weight .......................... 415
552 INDEX