engine overheat JEEP GRAND CHEROKEE 2010 Owner handbook (in English)

WARNING!
Exhaust gases can injure or kill. They contain
carbon monoxide (CO), which is colorless and
odorless. Breathing it can make you uncon-
scious and can eventually poison you. To
avoid breathing CO, refer to “Safety Tips/
Exhaust Gas” in “Things To Do Before Starting
Your Vehicle” for further information.
CAUTION!
The catalytic converter requires the use of
unleaded fuel only. Leaded gasoline will de-
stroy the effectiveness of the catalyst as an
emissions control device and may seriously
reduce engine performance and cause seri-
ous damage to the engine.
Under normal operating conditions, the cata-
lytic converter will not require maintenance.
However, it is important to keep the engine
properly tuned to assure proper catalyst opera-
tion and prevent possible catalyst damage.
CAUTION!
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 ve-
hicle serviced promptly. Continued operation
of your vehicle with a severe malfunction
could cause the converter to overheat, result-
ing in possible damage to the converter and
vehicle.
NOTE:
Intentional tampering with emissions con-
trol systems can result in civil penalties
being assessed against you.WARNING!
A hot exhaust system can start a fire if you
park over materials that can burn. Such ma-
terials might be grass or leaves coming into
contact with your exhaust system. Do not park
or operate your vehicle in areas where your
exhaust system can contact anything that can
burn.
In unusual situations involving grossly malfunc-
tioning engine operation, a scorching odor may
suggest severe and abnormal catalyst over-
heating. If this occurs, stop the vehicle, turn off
the engine and allow it to cool. Service, includ-
ing a tuneup to manufacturer’s specifications,
should be obtained immediately.
To minimize the possibility of catalytic converter
damage:
• 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.
279

CAUTION!(Continued)
• Do not use water alone or alcohol based
engine coolant (antifreeze) products. Do
not use additional rust inhibitors or antirust
products, as they may not be compatible
with the engine coolant (antifreeze) and
may plug the radiator.
• This vehicle has not been designed for use
with Propylene Glycol-based engine cool-
ant (antifreeze). Use of Propylene Glycol-
based engine coolant (antifreeze) is not
recommended.
Adding Coolant
Your vehicle has been built with an improved
engine coolant (antifreeze) that allows extended
maintenance intervals. This engine coolant (an-
tifreeze) can be used up to 5 Years or
105,000 miles (168 000 km) before replace-
ment. To prevent reducing this extended main-
tenance period, it is important that you use the
same engine coolant (antifreeze) throughout the
life of your vehicle. Please review these recom-
mendations for using Hybrid Organic Additive
Technology (HOAT) engine coolant (antifreeze).
When adding engine coolant (antifreeze):
•
The manufacturer recommends using MO-
PA R Antifreeze/ Coolant 5–Year/100,000 Mile
Formula HOAT (Hybrid Organic Additive
Technology) or equivalent.
• Mix a minimum solution of 50% HOAT engine
coolant (antifreeze) and distilled water. Use
higher concentrations (not to exceed 70%) if
temperatures below -34°F (-37°C) are antici-
pated.
• Use only high purity water such as distilled
or deionized 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 maintain the proper level of protection
against freezing according 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 (an- tifreeze) and will require more frequent en-
gine coolant (antifreeze) changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss
of engine coolant (antifreeze), and to ensure
that engine coolant (antifreeze) will return to the
radiator from the coolant recovery tank.
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 precaution. Never add engine cool-
ant (antifreeze) when the engine is over-
heated. 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)
281

Emergency, In Case ofFreeing Vehicle When Stuck ......210
Hazard Warning Flasher ........258
Jacking ..................259
Jump Starting ..............262
Engine Air Cleaner ................276
Break-In Recommendations .......54
Compartment .........270,271,272
Compartment Identification . . 270,271,272
Cooling ..................280
Exhaust Gas Caution .........28,55
Fails to Start ...............202
Flooded, Starting ............202
Fuel Requirements .........240,297
Jump Starting ..............262
Multi-Displacement ...........222
Oil .................. 274,297
Oil Change Interval ...........274
Oil Disposal ...............276
Oil Filter .................276
Oil Selection .......... 274,275,297
Oil Synthetic ...............275
Overheating ...............258
Starting ..................200
Temperature Gauge ...........163
Engine Oil Viscosity ............275 Engine Oil Viscosity Chart
........275
Enhanced Accident Response Feature . . 43
Entry System, Illuminated ..........16
Ethanol ...................241
Event Data Recorder ............45
Exhaust Gas Caution ........28,55,279
Exhaust System ............ 55,278
Exterior Finish Care ............287
Exterior Lights ................57
Filters Air Cleaner ................276
Engine Oil ................276
Finish Care .................287
Flashers ..................258
Hazard Warning .............258
Turn Signal ......... 57,159,294,295
Flipper Glass, Liftgate ...........26
Flooded Engine Starting .........202
Fluid Capacities ..............297
Fluid Leaks .................57
Fluid Level Checks Automatic Transmission ......285,286
Brake ...................283
Engine Oil
................274
Power Steering .............221 Fluids, Lubricants and Genuine Parts . . 298
Fog Light Service
.............294
Fog Lights ............ 109,159,294
Fog Lights, Rear ..............163
Folding Rear Seat .............101
Four Wheel Drive ........... 210,213
Operation ................210
Systems .................210
Four Wheel Drive Operation .......210
Four-Way Hazard Flasher .........258
Freeing A Stuck Vehicle ..........210
Front Axle (Differential) ..........284
Fuel .....................240
Additives .................241
Conserving ...............171
Diesel ..................242
Filler Cap (Gas Cap) ........242,244
Gasoline .................240
Gauge ..................162
Light ...................169
Octane Rating ..............240
Requirements ..............297
Saver Mode ...............171
Tank Capacity ..............297
Fuel System Caution ............243
Fuses ....................290
338

Odometer..................159
Trip ....................159
Off-Pavement Driving (Off-Road) .....218
Off-Road Driving (Off-Pavement) .....218
Oil Change Indicator ...........171
Oil Change Indicator, Reset .......171
Oil, Engine .................274
Capacity .................297
Change Interval .............274
Diesel ..................275
Dipstick .................274
Filter ...................276
Identification Logo ...........274
Materials Added to ...........276
Recommendation .......274,275,297
Synthetic .................275
Viscosity ............... 275,297
Onboard Diagnostic System .......273
Operator Manual (Owner’s Manual) .....6
Outside Rearview Mirrors ..........67
Overdrive ..................208
Overdrive OFF Switch ...........208
Overhead Console .............139
Overheating, Engine .........163,258
Owner’s Manual (Operator Manual) .....6Paint Care
.................287
Paint Damage ...............287
Park Sense System, Rear .........132
Parking Brake ...............222
Personal Settings .............177
Pets ......................54
Pets, Transporting ..............54
Phone, Cellular ...............74
Phone, Hands-Free (uconnect ) ......74
Polishing and Waxing ...........287
Power Door Locks ................20
Lift Gate ..................27
Mirrors ...................68
Outlet (Auxiliary Electrical Outlet) . . . 144
Seats .................. 94,96
Steering ............... 220,221
Sunroof ............... 140,142
Tilt/Telescoping Steering Column . . . 115
Windows ..................24
Pregnant Women and Seat Belts .....36
Preparation for Jacking ..........259
Pretensioners Seat Belts .................34
Programmable Electronic Features ....177Programming Transmitters(Remote Keyless Entry)
...........17
Quadra-Trac ................210
Radial Ply Tires ..............231
Radio Operation ..............185
Radio (Sound Systems) ..........181
Rain Sensitive Wiper System .......114
Rear Axle (Differential) ..........284
Rear Camera ................138
Rear Cross Path ...............72
Rear Cupholder ..............146
Rear Fog Lights ..............163
Rear Park Sense System .........132
Rear Seat, Folding .............101
Rear Window Defroster ..........151
Rear Window Features ..........150
Rear Wiper/Washer ............150
Rearview Mirrors ..............67
Recorder, Event Data ............45
Recreational Towing ............251
Shifting into Transfer Case Neutral
(N) ....................252
Shifting out of Transfer Case Neutral
(N) ....................254
341