User Manual - Page 218

For 2019 Wrangler.

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216 GETTING TO KNOW YOUR INSTRUMENT PANEL
Gray Indicator Lights
Cruise Control Ready Indicator Light If Equipped
With Base Instrument Cluster
This li
ght will turn on when the speed control has been
turned o
n, but not set. Refer to “Speed Control If
Equipped” in “Starting And Operating” for further informa
-
tion.
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 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 (MIL). 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 an
authorized dealer for service as soon as possible.
CAUTION!
Prolonged driving with the MIL on could cause further
damage t
o 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 MIL is flashing while the vehicle is running,
severe c
atalytic converter damage and power loss will
soon occur. Immediate service is required.
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