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MAINTAINING YOUR VEHICLE
ONBOARD DIAGNOSTIC SYSTEM — OBD II
CAUTION!
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors
theperformanceoftheemissions,engine,andautomatic
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sionswellwithincurrentgovernmentregulations.
• furtherProlongeddamagedrivingtothewithemissionthe MILcontrolon couldsystem.causeIt
couldalsoaffectfueleconomyanddrivability.The
vehicle must be serviced before any emissions
testscanbeperformed.
IftheMILisflashingwhiletheengineisrunning,
severecatalyticconverterdamageandpowerloss
willsoonoccur.Immediateserviceisrequired.
•
Ifanyofthesesystemsrequireservice,theOBDIIsystem
willturnontheMalfunctionIndicatorLight(MIL).Itwill
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
soonaspossible.
Loose Fuel Filler Cap Message
Ifthevehiclediagnosticsystemdeterminesthatthefuel
filler cap is loose, improperly installed, or damaged, a
“gASCAP”messagewilldisplayintheinstrumentclus-
ter.Tightenthegascapuntila“clicking”soundisheard.
This is an indication that the gas cap is properly tight-
ened. Press the trip odometer RESET button to turn off
the message. If the problem persists, the message will
| Categories | Jeep Liberty Manuals, Jeep Manuals |
|---|---|
| Model Year | 2009 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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