2008 HB Dodge Durango Owner Manual

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 emissions
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. Although
your vehicle will usually be drivable and not
need towing, see your dealer for service as soon as
possible.
MAINTAINING YOUR VEHICLE 387
CAUTION!
• Prolonged driving with the “Malfunction Indicator
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 performed.
• If the “Malfunction Indicator Light” is flashing
while the engine is running, severe catalytic converter
damage and power loss will soon occur.
Immediate service is required.
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