2009 JEEP PATRIOT reset

If a Non-FFV vehicle is inadvertently fueled with E-85
fuel, the engine will have some or all of these symptoms:
•operate in a lean mode
•OBD II “Malfunction Indicator Light” on
•poor engine performance
•poor cold start and cold drivability
•increased risk for fuel system component corrosion
To fix a Non-FFV vehicle inadvertently fueled once with
E-85 perform the following:
•drain the fuel tank (see your authorized dealer)
•change the engine oil and oil filter
•disconnect and reconnect the battery to reset the
engine controller memoryMore extensive repairs will be required for prolonged
exposure to E-85 fuel.
MMT In Gasoline
MMT is a manganese containing metallic additive that is
blended into some gasoline to increase the octane num-
ber. Gasolines blended with MMT offer no performance
advantage beyond gasolines of the same octane number
without MMT. Gasolines blended with MMT have been
shown to reduce spark plug life and reduce emission
system performance in some vehicles. The manufacturer
recommends using gasolines without MMT. Since the
MMT content of gasoline may not be indicated on the
pump, you should ask your gasoline retailer whether or
not their gasoline contains MMT.
It is even more important to look for gasolines without
MMT in Canada, because MMT can be used at levels
higher than those allowed in the United States.
330 STARTING AND OPERATING

NOTE:Tighten the gas cap about 1/4 turn until you
hear one click. This is an indication that cap is properly
tightened.
If the gas cap is not tighten properly, the MIL will come
on. Be sure the gas cap is tightened every time the vehicle
is refueled.
WARNING!
A fire may result if gasoline is pumped into a
portable container that is inside of a vehicle. You
could be burned. Always place gas containers on the
ground while filling.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose or improperly installed, a “gASCAP”
message will be displayed in the Odometer/Trip Odom-
eter in the instrument cluster. Refer to “InstrumentCluster Description” in Section 4 of this manual. Tighten
the fuel filler cap properly and press the odometer/trip
odometer RESET button to turn the message off. If the
problem continues, the message will appear the next time
the vehicle is started. Refer to “Onboard Diagnostic
System — OBD II” in Section 7 of this manual for more
information.
CAUTION!
Damage to the fuel system or emission control sys-
tem could result from using an improper fuel tank
filler cap (gas cap). A poorly fitting cap could let
impurities into the fuel system.
334 STARTING AND OPERATING

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and automatic
transaxle control systems. When these systems are oper-
ating properly, your vehicle will provide excellent per-
formance and fuel economy, as well as engine emissions
well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the Malfunction Indicator Light (MIL). It will
also store diagnostic codes and other information to
assist your service technician in making repairs. Al-
though your vehicle will usually be drivable and not
need towing, see your authorized dealer for service as
soon as possible.CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
After fuel is added, the vehicle diagnostic system can
determine if the fuel filler cap is possibly loose or
improperly installed. A “gASCAP” message will be dis-
played in the instrument cluster. Tighten the gas cap until
aclickingsound is heard. This is an indication that the
gas cap is properly tightened. Press the trip odometer
RESET button to turn off the message. If the problem
366 MAINTAINING YOUR VEHICLE

NOTE:
•The oil change indicator message will not monitor the
time since the last oil change. Change your vehicle’s
oil if it has been six months since your last oil change
and even if the oil change indicator message is NOT
illuminated.
•Change your engine oil more often if you drive your
vehicle off-road for an extended period of time.
•Under no circumstances should oil change intervals
exceed 6,000 miles (10 000 km) or six months, which-
ever comes first.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If this
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under “Oil Change
Required” in “Use Factory Settings” of the EVIC sectionin this manual or under “Odometer/Trip Odometer” in
the Instrument Cluster Descriptions section of this
manual.
At Each Stop for Fuel
•Check the engine oil level about five minutes after a
fully warmed engine is shut off. Checking the oil level
while the vehicle is on level ground will improve the
accuracy of the oil level reading. Add oil only when
the level is at or below the ADD or MIN mark.
•Check the windshield washer solvent and add if
required.
MAINTENANCE SCHEDULES 409
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Maintenance Schedule.................... 408
Malfunction Indicator Light
(Check Engine).......................176,367
Manual, Service......................... 431
Manual Transaxle..................256,258,386
Downshifting......................... 260
Fluid Level Check...................387,388
Frequency of Fluid Change............387,388
Lubricant Selection...............386,387,388
Map/Reading Lights..................... 129
Master Cylinder (Brakes).................. 384
Mirrors................................ 75
Automatic Dimming..................... 76
Electric Powered....................... 79
Exterior Folding........................ 78
Outside.............................. 77
Rearview............................. 75
Vanity............................... 80
Modifications/Alterations, Vehicle............. 8Monitor, Tire Pressure System............... 319
Mopar Parts.........................368,430
Multi-Function Control Lever............... 123
New Vehicle Break-In Period................ 68
Occupant Restraints....................... 36
Octane Rating, Gasoline (Fuel).............. 328
Odometer............................. 175
Trip .............................173,175
Oil Change Indicator..................... 180
Oil Change Indicator, Reset................. 180
Oil, Engine.........................369,404
Capacity............................ 404
Change Interval....................... 370
Checking............................ 369
Disposal............................ 371
Filter............................... 372
Identification Logo..................... 371
INDEX 445
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Trailer and Tongue Weight............... 341
Wiring.............................. 345
Trailer Towing Guide..................... 340
Trailer Weight.......................... 340
Transaxle............................. 260
Automatic....................12,256,260,386
Autostick............................ 264
Manual........................14,256,258
Operation........................... 260
Overdrive........................... 264
Selection of Lubricant................... 386
Transmitter Battery Service
(Remote Keyless Entry).................... 25
Transmitter, Garage Door Opener (HomeLink) . . 136
Transmitter Programming
(Remote Keyless Entry).................... 24
Transporting Pets........................ 68
Tread Wear Indicators.................... 315
Trip Odometer.......................... 175Trip Odometer Reset Button................ 173
Turn Signals......................126,168,400
UCI Connector......................... 229
UConnect(Hands-Free Phone).............. 81
Understanding Your Instrument Panel......... 165
Uniform Tire Quality Grades................ 432
Universal Consumer Interface (UCI) Connector . . . 229
Universal Transmitter..................... 136
Unleaded Gasoline....................... 328
Vanity Mirrors........................... 80
Variance, Compass....................... 186
Vehicle Certification Label................. 335
Vehicle Identification Number (VIN)............ 7
Vehicle Loading...................305,335,336
Vehicle Modifications/Alterations.............. 8
Vehicle Storage......................... 397
Vehicle Theft Alarm (Security Alarm).......... 19
INDEX 451
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