overheating JEEP COMMANDER 2007 1.G Owners Manual

NOTE:To program the remaining two HomeLink but-
tons, begin withProgrammingstep two. Do not repeat
step one. For questions or comments, please contact
HomeLink atwww.homelink.com or 1-800-355-3515.
Canadian Programming/Gate Programming
Canadian radio-frequency laws require transmitter sig-
nals totime-out(or quit) after several seconds of
transmission which may not be long enough for
HomeLink to pick up the signal during programming.
Similar to this Canadian law, some U.S. gate operators are
designed totime-outin the same manner.
If you live in Canada or you are having difficulties
programming a gate operator by using theProgram-
mingprocedures (regardless of where you live),replace
Programming HomeLinkstep 3with the following:
NOTE:If programming a garage door opener or gate
operator, it is advised to unplug the device during the
cyclingprocess to prevent possible overheating.3. Continue to press and hold the HomeLink button
while youpress and release every two seconds(cycle)
your hand-held transmitter until the frequency signal has
successfully been accepted by HomeLink. The EVIC
display will show “CHANNEL X TRAINED” (where X is
Channel 1, 2, or 3). Proceed withProgrammingstep
four to complete.
Using HomeLink
To operate, simply press and release the programmed
HomeLink button. Activation will now occur for the
trained device (i.e. garage door opener, gate operator,
security system, entry door lock, home/office lighting,
etc.). For convenience, the hand-held transmitter of the
device may also be used at any time. In the event that
there are still programming difficulties or questions,
contact HomeLink at:www.homelink.com or 1-800-355-
3515.
156 UNDERSTANDING THE FEATURES OF YOUR VEHICLE

Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates increase the rate of window fogging.
Summer Operation
Air conditioned vehicles must be protected with a high
quality antifreeze coolant during summer to provide
proper corrosion protection and to raise the boiling point
of the coolant for protection against overheating. A 50 %
concentration is recommended. Refer to Recommended
Fluids and Genuine Parts for the proper coolant type.
When using the air conditioner in extremely heavy traffic
in hot weather especially when towing a trailer, addi-
tional engine cooling may be required. If this situation is
encountered, operate the transmission in a lower gear to
increase engine RPM, coolant flow and fan speed. When
stopped in heavy traffic, it may be necessary to shift intoN (Neutral) and depress the accelerator slightly for fast
idle operation to increase coolant flow and fan speed.
Your air conditioning system is also equipped with an
automatic recirculation system. When the system senses
a heavy load or high heat conditions, it may use partial
Recirculation A/C mode to provide additional comfort.Winter Operation
When operating the system during the winter months,
make sure the air intake, located directly in front of the
windshield, is free of ice, slush, snow, or other obstruc-
tions.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e. vacation) for two weeks or more, run the air condi-
tioning system at idle for about five minutes in the fresh
air and high blower setting. This will insure adequate
system lubrication to minimize the possibility of com-
pressor damage when the system is started again.
UNDERSTANDING YOUR INSTRUMENT PANEL 245
4

NOTE:If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into Overdrive
and will automatically select the most desirable gear for
operation at this temperature. Normal operation will
resume when the transmission fluid temperature has
risen to a suitable level. Refer also to the Note under
torque converter clutch, later in this section.
During cold temperature operation you may notice de-
layed upshifts depending on engine and transmission
temperature. This feature improves the warm up time of
the engine and transmission.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough, the “TRANSMISSION
OVER TEMP” message may display and the transmis-
sion may downshift out of Overdrive until the transmis-
sion cools down. After cooldown, the transmission will
resume normal operation.In high ambient temperatures with sustained high engine
speed and load, an upshift followed shortly thereafter by
a downshift may occur. This is a normal part of the
overheat protection strategy when operating in the
“Tow/Haul” mode.
The transmission will downshift from Overdrive to the
most desirable gear if the accelerator pedal is fully
depressed at vehicle speeds above approximately 35 mph
(56 km/h).
When To Use “TOW/HAUL” Mode — If Equipped
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the “TOW/HAUL” button. This will improve
performance and reduce the potential for transmission
overheating or failure due to excessive shifting. When
operating in “TOW/HAUL” mode, the transmission will
shift to direct gear and Overdrive will be enabled under
steady cruise conditions.
260 STARTING AND OPERATING

Rocking the Vehicle
If the vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the gear
selector rhythmically between D (Drive) and R (Reverse),
while applying slight pressure to the accelerator.
NOTE:The Electronic Stability Program (ESP) and
Traction Control (if equipped) should be turned OFF
before attempting to rock the vehicle. Refer to Section 3 of
this manual.
The least amount of accelerator pedal pressure to main-
tain the rocking motion without spinning the wheels or
racing the engine is most effective. Racing the engine or
spinning the wheels, due to the frustration of not freeing
the vehicle, may lead to transmission overheating and
failure. Allow the engine to idle with the transmission
selector in N (Neutral) for at least one minute after everyfive rocking-motion cycles. This will minimize overheat-
ing and reduce the risk of transmission failure during
prolonged efforts to free a stuck vehicle.
CAUTION!
When “rocking” a stuck vehicle by moving between
“First” and R (Reverse), do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
STARTING AND OPERATING 263
5

IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
•On the highways — Slow down.
•In city traffic — While stopped, put transmission in N
(Neutral), but do not increase engine idle speed.
NOTE:There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
Control to maximum heat, the Mode Control to floor, and
the Fan 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.
CAUTION!
Driving with a hot cooling system could damage
your vehicle. If the temperature gauge reads “H”,
pull over and stop the vehicle. Idle the vehicle with
the air conditioner turned off until the pointer drops
back into the normal range. If the pointer remains on
the “H”, and you hear continuous chimes, turn the
engine off immediately, and call for service.
WHAT TO DO IN EMERGENCIES 341
6

NOTE:Intentional tampering with emissions control
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 materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
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.
368 MAINTAINING YOUR VEHICLE

Jump Starting......................... 348
Tow Hooks.......................... 351
Emission Control System Maintenance......359,406
Engine
Air Cleaner.......................... 366
Block Heater......................... 255
Break-In Recommendations................ 67
Compartment...................355,356,357
Compartment Identification.........355,356,357
Cooling............................. 375
Exhaust Gas Caution................36,68,310
Fails to Start.......................... 252
Flooded, Starting...................... 252
Fuel Requirements..................307,402
Oil ..............................362,402
Oil Change Interval.................... 363
Oil Disposal.......................... 365
Oil Filter............................ 365
Oil Filter Disposal...................... 365Oil Selection.......................... 402
Oil Synthetic......................... 364
Overheating.......................... 341
Starting............................. 251
Temperature Gauge..................... 180
Engine Oil Viscosity...................... 364
Engine Oil Viscosity Chart................. 364
Enhanced Accident Response Feature.......... 54
Entry System, Illuminated.................. 19
Event Data Recorder...................... 55
Exhaust Gas Caution.................36,68,310
Exhaust System......................... 375
Extender, Seat Belt........................ 45
Exterior Finish Care...................... 389
Filters
Air Cleaner.......................... 366
Engine Oil........................... 365
Engine Oil Disposal.................... 365
442 INDEX

Onboard Diagnostic System..............358,359
Opener, Garage Door (HomeLink) ........... 151
Outside Rearview Mirrors.................. 77
Overdrive............................. 259
Overdrive OFF Switch.................... 259
Overhead Console....................... 151
Overheating, Engine...................180,341
Owner’s Manual (Operator Manual).......... 434
Paint Care............................. 388
Paint Damage.......................... 388
Panic Alarm............................ 22
Park Assist System, Rear.................. 144
Parking Brake.......................... 274
Passing Light........................... 124
Pedals, Adjustable....................... 130
Pets.................................. 67
Pets, Transporting........................ 67
Phone, Cellular.......................... 80Phone, Hands-Free (UConnect™)............. 80
Placard, Tire and Loading Information......... 284
Polishing and Waxing..................... 389
Power
Distribution Center (Fuses)............... 396
Door Locks........................... 27
Lift Gate............................. 34
Mirrors.............................. 78
Outlet (Auxiliary Electrical Outlet).......... 162
Seats............................105,106
Steering..........................278,372
Sunroof............................. 158
Windows............................. 29
Pregnant Women and Seat Belts.............. 45
Preparation for Jacking.................... 344
Pretensioners
Seat Belts............................. 44
Programmable Electronic Features......153,157,187
INDEX 449
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