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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
transmission control systems. When these systems are
operating properly, your vehicle will provide excellent
performance and fuel economy, as well as engine emis-
sions well within current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light.” 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 dealer for service as soon as
possible.
CAUTION!
•
Prolonged driving with the “Malfunction Indica-
tor Light” on could cause further damage to the
emission control system. It could also affect fuel
economy and driveability. The vehicle must be
serviced before any emissions tests can be per-
formed.
•
If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic con-
verter 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 loose, improperly
installed, or damaged. A loose fuel filler cap message will
be displayed in the instrument cluster. Tighten the gas
MAINTAINING YOUR VEHICLE
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Summary of Contents for 2006 Grand Cherokee
Page 2: ......
Page 72: ......
Page 103: ...UNDERSTANDING THE FEATURES OF YOUR VEHICLE 103 3 ...
Page 104: ...104 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Page 105: ...UNDERSTANDING THE FEATURES OF YOUR VEHICLE 105 3 ...
Page 174: ......
Page 178: ...INSTRUMENT PANEL AND INTERIOR CONTROLS 178 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 179: ...INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 179 4 ...
Page 237: ...Operating Tips UNDERSTANDING YOUR INSTRUMENT PANEL 237 4 ...
Page 241: ...UNDERSTANDING YOUR INSTRUMENT PANEL 241 4 ...
Page 246: ......
Page 286: ...286 STARTING AND OPERATING ...
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Page 340: ......
Page 344: ...3 7L ENGINE 344 MAINTAINING YOUR VEHICLE ...
Page 345: ...4 7L ENGINE MAINTAINING YOUR VEHICLE 345 7 ...
Page 346: ...5 7L ENGINE 346 MAINTAINING YOUR VEHICLE ...
Page 423: ...INDEX 10 ...
Page 442: ...442 INDEX ...
Page 443: ...NOTES ...
Page 444: ...NOTES ...
Page 445: ...NOTES ...
Page 446: ...NOTES ...
Page 447: ...NOTES ...
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