Jeep Wrangler 2013 Owner's Manual page 624

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622 MAINTENANCE SCHEDULES
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MAINTENANCE SCHEDULE
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Your vehicle is equipped with an automatic oil change
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indicator system. The oil change indicator system will
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remind you that it is time to take your vehicle in for
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scheduled maintenance.
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Based on engine operation conditions, the oil change
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indicator message will illuminate. This means that ser-
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vice is required for your vehicle. Operating conditions
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such as frequent short-trips, trailer tow, extremely hot or
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cold ambient temperatures, and E85 fuel usage will
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influence when the "Change Oil" or "Oil Change Re-
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quired" message is displayed. Severe Operating Condi-
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tions can cause the change oil message to illuminate as
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early as 3,500 miles (5,600 km) since last reset. Have your
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vehicle serviced as soon as possible, within the next 500
miles (805 km).
On Electronic Vehicle Information Center (EVIC)
equipped vehicles, "Oil Change Required" will be dis-
played in the EVIC and a single chime will sound,
indicating that an oil change is necessary.
On Non-EVIC equipped vehicles, "Change Oil" will flash
in the instrument cluster odometer and a single chime
will sound, indicating that an oil change is necessary.
Your authorized dealer will reset the oil change indicator
message after completing the scheduled oil change. If a
scheduled oil change is performed by someone other
than your authorized dealer, the message can be reset by
referring to the steps described under "Electronic Vehicle
Information Center (EVIC)/Oil Change Required" in
"Understanding Your Instrument Panel" or under "In-
strument Cluster Description/Odometer/Trip Odom-
eter" in "Understanding Your Instrument Panel" for
further information.