2012 JEEP PATRIOT service

25. Malfunction Indicator Light (MIL)
The Malfunction Indicator Light (MIL) is part of
an Onboard Diagnostic system called OBD II that
monitors emissions, engine, and automatic trans-
mission control systems. The light will illuminate when
the key is in the ON/RUN position before engine start. If
the light does not come on when turning the key from
OFF to ON/RUN, have the condition checked promptly.
Certain conditions, such as a loose or missing gas cap,
poor fuel quality, etc., may illuminate the light after
engine start. The vehicle should be serviced if the light
stays on through several of your typical driving cycles. In
most situations, the vehicle will drive normally and will
not require towing.CAUTION!
Prolonged driving with the MIL on could cause
damage to the engine control system. It also could
affect fuel economy and drivability. If the MIL is
flashing, severe catalytic converter damage and
power loss will soon occur. Immediate service is
required.
WARNING!
A malfunctioning catalytic converter, as referenced
above, can reach higher temperatures than in normal
operating conditions. This can cause a fire if you
drive slowly or park over flammable substances such
as dry plants, wood, cardboard, etc. This could result
in death or serious injury to the driver, occupants or
others.
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UNDERSTANDING YOUR INSTRUMENT PANEL 209

•Each time the ignition is turned to ON/RUN, the ESC
system will be ON, even if it was turned off previously.
•The ESC system will make buzzing or clicking sounds
when it is active. This is normal; the sounds will stop
when ESC becomes inactive following the maneuver
that caused the ESC activation.
30. 4WD! Warning Light
This light monitors the 4-Wheel Drive (4WD)
system. The light will come on, for a bulb
check, when the ignition key is turned to the
ON/RUN position and may stay on for as long
as three seconds.
When lit solid:There is an 4WD system fault. 4WD
performance will be at a reduced level. Service the 4WD
system soon.
When blinking:The 4WD system is temporarily dis-
abled due to overload condition.31. Electronic Vehicle Information Center (EVIC)
Display — If Equipped
When the appropriate conditions exist, this display
shows the Electronic Vehicle Information Center (EVIC)
messages.
For further information, refer to “Electronic Vehicle In-
formation Center (EVIC)”.
MINI-TRIP COMPUTER — IF EQUIPPED
The Mini-Trip Computer is located in the instrument
cluster and features a driver-interactive trip information
and temperature display.
NOTE:The system will display the last known outside
temperature when starting the vehicle and may need to
be driven several minutes before the updated tempera-
ture is displayed. Engine temperature can also affect the
displayed temperature; therefore, temperature readings
are not updated when the vehicle is not moving.
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UNDERSTANDING YOUR INSTRUMENT PANEL 211

•Remote Start Aborted — Fuel Low
•Remote Start Aborted — System Fault
•Key In Ignition
•Low Tire
•Low Tire Pressure Display for Premium TPM System
•Service TPM System
Engine Oil Change Indicator System — If
Equipped
Oil Change Required
Your vehicle is equipped with an engine oil change
indicator system. The “Oil Change Required” message
will flash in the EVIC display for approximately five
seconds after a single chime has sounded, to indicate the
next scheduled oil change interval. The engine oil changeindicator system is duty-cycle based, which means the
engine oil change interval may fluctuate dependent upon
your personal driving style.
Unless reset, this message will continue to display each
time you turn the ignition switch to the ON/RUN
position. To turn off the message temporarily, press and
release the Trip Odometer button on the instrument
cluster. To reset the oil change indicator system (after
performing the scheduled maintenance) refer to the fol-
lowing procedure.
1. Turn the ignition switch to the ON position.Do not
start the engine.
2. Fully depress the accelerator pedal, slowly, three times
within 10 seconds.
3. Turn the ignition switch to the OFF/LOCK position.
216 UNDERSTANDING YOUR INSTRUMENT PANEL

Macrovision
This product incorporates copyright protection technol-
ogy that is protected by U.S. patents and other intellec-
tual property rights. Use of this copyright protection
technology must be authorized by Macrovision, and is
intended for home and other limited viewing uses only,
unless otherwise authorized by Macrovision. Reverse
engineering or disassembly is prohibited.
DTS™
DTS™andDTS™ 2.0are trademarks of Digital
Theater Systems, Inc.
Uconnect™ Multimedia (Satellite Radio) — If
Equipped
Satellite radio uses direct satellite-to-receiver broadcast-
ing technology to provide clear digital sound, coast to
coast. The subscription service provider is Sirius Satellite
Radio. This service offers over 130 channels of music,
sports, news, entertainment, and programming for chil-
dren, directly from its satellites and broadcasting studios.NOTE:Sirius service is not available in Hawaii and has
limited coverage in Alaska.
System Activation
Sirius Satellite Radio service is pre-activated, and you
may begin listening immediately to the one year of audio
service that is included with the factory-installed satellite
radio system in your vehicle. Sirius will supply a wel-
come kit that contains general information, including
how to setup your on-line listening account. For further
information, call the toll-free number 888-539-7474,
or visit the Sirius web site at www.sirius.com, or at
www.siriuscanada.ca for Canadian residents.
Electronic Serial Number/Sirius Identification
Number (ESN/SID)
Please have the following information available when
calling:
1. The Electronic Serial Number/Sirius Identification
Number (ESN/SID).
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UNDERSTANDING YOUR INSTRUMENT PANEL 239

Press and hold the INFO button again for three seconds
to return toelapsed timedisplay.
Operation Instructions - Auxiliary Mode
The auxiliary (AUX) jack is an audio input jack which
allows the user to plug in a portable device such as an
MP3 player or cassette player and utilize the vehicle’s
audio system to amplify the source and play through the
vehicle speakers.
Pressing the AUX button will change the mode to auxil-
iary device if the AUX jack is connected.
NOTE:
The AUX device must be turned on and the
device’s volume set to the proper level. If the AUX audio is
not loud enough, turn the device’s volume up. If the AUX
audio sounds distorted, turn the device’s volume down.
TIME Button (Auxiliary Mode)
Press this button to change the display to time of day. The
time of day will display for five seconds (when the
ignition is OFF).
Uconnect™ Multimedia (Satellite Radio) — If
Equipped
Satellite radio uses direct satellite-to-receiver broadcast-
ing technology to provide clear digital sound, coast to
coast. The subscription service provider is Sirius Satellite
Radio. This service offers over 130 channels of music,
sports, news, entertainment, and programming for chil-
dren, directly from its satellites and broadcasting studios.
NOTE:Sirius service is not available in Hawaii and has
limited coverage in Alaska.
System Activation
Sirius Satellite Radio service is pre-activated, and you
may begin listening immediately to the one year of audio
service that is included with the factory-installed satellite
radio system in your vehicle. Sirius will supply a wel-
come kit that contains general information, including
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UNDERSTANDING YOUR INSTRUMENT PANEL 263

3. Do not apply paper or tape to the disc; avoid scratch-
ing the disc.
4. Do not use solvents such as benzene, thinner, cleaners,
or anti-static sprays.
5. Store the disc in its case after playing.
6. Do not expose the disc to direct sunlight.
7. Do not store the disc where temperatures may become
too high.
NOTE:If you experience difficulty in playing a particu-
lar disc, it may be damaged (i.e., scratched, reflective
coating removed, a hair, moisture or dew on the disc)
oversized, or have protection encoding. Try a known
good disc before considering disc player service.RADIO OPERATION AND MOBILE PHONES
Under certain conditions, the mobile phone being on in
your vehicle can cause erratic or noisy performance from
your radio. This condition may be lessened or eliminated
by relocating the mobile phone antenna. This condition is
not harmful to the radio. If your radio performance does
not satisfactorily “clear” by the repositioning of the
antenna, it is recommended that the radio volume be
turned down or off during mobile phone operation when
not using Uconnect™ (if equipped).
CLIMATE CONTROLS
The air conditioning and heating system is designed to
make you comfortable in all types of weather.
276 UNDERSTANDING YOUR INSTRUMENT PANEL

•Most of the time, when in Automatic Operation, you
can temporarily put the system into Recirculation
Mode by pressing the Recirculation button. However,
under certain conditions, while in Automatic Mode,
the system is blowing air out the defrost vents. When
these conditions are present, and the Recirculation
button is pressed, the indicator will flash and then turn
off. This tells you that you are unable to go into
Recirculation Mode at this time. If you would like the
system to go into Recirculation Mode, you must first
move the Mode knob to Panel, Bi-Level and then press
the Recirculation button. This feature reduces the
possibility of window fogging.
Operating Tips
NOTE:Refer to the chart at the end of this section for
suggested control settings for various weather condi-
tions.
Summer Operation
The engine cooling system in air-conditioned vehicles
must be protected with a high-quality antifreeze coolant
to provide proper corrosion protection and to protect
against engine overheating. A solution of 50% ethylene
glycol antifreeze coolant and 50% water is recommended.
Refer to “Maintenance Procedures” in “Maintaining Your
Vehicle” for proper coolant selection.
Winter Operation
Use of the air Recirculation Mode during winter months is
not recommended because it may cause window fogging.
Vacation Storage
Anytime you store your vehicle, or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower settings. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
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UNDERSTANDING YOUR INSTRUMENT PANEL 287

Window Fogging
Interior fogging on the windshield can be quickly re-
moved by turning the mode selector to Defrost. The
Defrost/Floor mode can be used to maintain a clear
windshield and provide sufficient heating. If side win-
dow fogging becomes a problem, increase blower speed.
Vehicle windows tend to fog on the inside in mild but
rainy or humid weather.
NOTE:Recirculate without A/C should not be used for
long periods as fogging may occur.
Side Window Demisters
A side window demister outlet is located at each end of
the instrument panel. These non-adjustable outlets direct
air toward the side windows when the system is in the
FLOOR, MIX, or DEFROST mode. The air is directed at
the area of the windows through which you view the
outside mirrors.
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum, they could plug the water drains. In
winter months, make sure the air intake is clear of ice,
slush, and snow.
A/C Air Filter — If Equipped
The A/C Filter prevents most dust and pollen from
entering the cabin. The filter acts on air coming from
outside the vehicle and recirculated air within the pas-
senger compartment. Refer to “Maintenance Procedures”
in “Maintaining Your Vehicle” for A/C Air Filter service
information or see your authorized dealer for service.
Refer to “Maintenance Schedules” for filter service
intervals.
288 UNDERSTANDING YOUR INSTRUMENT PANEL