2011 JEEP LIBERTY engine overheat

NOTE:There are steps that you can take to slow down
an impending overheat condition:
•If your air conditioner (A/C) is on, turn it off. The A/C
system adds heat to the engine cooling system and
turning the A/C off can help remove this heat.
•You can also turn the temperature control to maximum
heat, the mode control to floor and the blower control
to high. This allows the heater core to act as a
supplement to the radiator and aids in removing heat
from the engine cooling system.
WARNING!
You or others can be badly burned by hot engine
coolant (antifreeze) 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 or coolant bottle is hot.
JACKING AND TIRE CHANGING
WARNING!
•Do not attempt to change a tire on the side of the
vehicle close to moving traffic. Pull far enough off
the road to avoid the danger of being hit when
operating the jack or changing the wheel.
•Being under a jacked-up vehicle is dangerous. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack.
•Never start or run the engine while the vehicle is
on a jack. If you need to get under a raised vehicle,
take it to a service center where it can be raised on
a lift.
(Continued)6
WHAT TO DO IN EMERGENCIES 423

FREEING A STUCK VEHICLE
If your vehicle becomes stuck in mud, sand or snow, it
can often be moved by a rocking motion. Turn your
steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE
and REVERSE. Using minimal accelerator pedal pressure
to maintain the rocking motion, without spinning the
wheels, is most effective.
CAUTION!
Racing the engine or spinning the wheels may lead to
transmission overheating and failure. Allow the en-
gine to idle with the shift lever in NEUTRAL for at
least one minute after every five rocking-motion
cycles. This will minimize overheating and reduce
the risk of transmission failure during prolonged
efforts to free a stuck vehicle.NOTE:
If your vehicle is equipped with Traction Con-
trol or Electronic Stability Control (ESC), turn the system
OFF before attempting to “rock” the vehicle.
CAUTION!
•When “rocking” a stuck vehicle by moving be-
tween DRIVE and REVERSE, do not spin the
wheels faster than 15 mph (24 km/h), or drivetrain
damage may result.
•Revving the engine or spinning the wheels too fast
may lead to transmission overheating and failure.
It can also damage the tires. Do not spin the
wheels above 30 mph (48 km/h) while in gear (no
transmission shifting occurring).
434 WHAT TO DO IN EMERGENCIES

WARNING! (Continued)
•A hot exhaust system can start a fire if you park
over materials that can burn. Such materials might
be grass or leaves coming into contact with your
exhaust system. Do not park or operate your ve-
hicle in areas where your exhaust system can
contact anything that can burn.
CAUTION!
•The catalytic converter requires the use of un-
leaded fuel only. Leaded gasoline will destroy the
effectiveness of the catalyst as an emissions con-
trol device and may seriously reduce engine per-
formance and cause serious damage to the engine.(Continued)
CAUTION! (Continued)
•Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition.
In the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
7
MAINTAINING YOUR VEHICLE 457

NOTE:Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune-up to manufacturer’s specifica-
tions, should be obtained immediately.
To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition,
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing, or for prolonged periods during very rough
idle or malfunctioning operating conditions.
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
458 MAINTAINING YOUR VEHICLE

•Mix a minimum solution of 50% HOAT engine coolant
and distilled water. Use higher concentrations (not to
exceed 70%) if temperatures below34°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.
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.
(Continued)
7
MAINTAINING YOUR VEHICLE 461

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

Coolant (Antifreeze)................ 458,488
Cooling ........................... 458
Exhaust Gas Caution ................88,392
Fails to Start ........................ 314
Flooded, Starting ..................... 314
Fuel Requirements .................... 388
Jump Starting ....................... 430
Oil ......................... 448,487,488
Oil Change Interval .............232,239,448
Oil Filler Cap ....................... 449
Oil Filter ........................... 450
Oil Filter Disposal .................... 450
Oil Selection ..................... 449,487
Oil Synthetic ........................ 450
Overheating ........................ 422
Starting ........................... 313
Temperature Gauge ................... 227
Engine Oil Viscosity ...................... 449 Engine Oil Viscosity Chart
................. 449
Enhanced Accident Response Feature .......... 73
Entry System, Illuminated .................. 20
Ethanol ............................... 389
Event Data Recorder ...................... 76
Exhaust Gas Caution ................... 88,392
Exhaust System ....................... 88,456
Exterior Finish Care ...................... 473
Exterior Lights .......................... 91
Fabric Care ............................ 475
Filters Air Cleaner ......................... 450
Air Conditioning .................. 306,454
Engine Oil ....................... 450,488
Engine Oil Disposal ................... 450
Finish Care ............................ 473
Flash-To-Pass ........................... 162
10
INDEX 523

Overdrive OFF Switch.................... 319
Overheating, Engine ................... 228,422
Owner’s Manual (Operator Manual) .........5,513
Paint Care ............................. 472
Paint Damage .......................... 472
Panic Alarm ............................ 24
Park Sense System, Rear ................... 175
Parking Brake .......................... 339
Parking On Hill ......................... 339
Passing Light ........................... 162
Personal Settings ........................ 244
Pets .................................. 86
Pets, Transporting ........................ 86
Phone, Cellular ......................... 103
Phone, Hands-Free (Uconnect™) ............. 103
Placard, Tire and Loading Information ......... 362
Polishing and Waxing ..................... 473 Power
Door Locks ......................... 30
Mirrors ............................ 101
Seats ............................. 139
Steering ........................ 337,339
Sunroof ........................... 190
Sunroof (Sky Slider) ................ 193,470
Windows ........................... 35
Power Steering Fluid ..................... 489
Pregnant Women and Seat Belts .............. 58
Preparation for Jacking .................... 426
Pretensioners Seat Belts ........................... 50
Programmable Electronic Features ............ 244
Programming Transmitters
(Remote Keyless Entry) .................... 20
Radial Ply Tires ......................... 369
Radiator Cap (Coolant Pressure Cap) .......... 461
10
INDEX 531