Chrysler 2009 PT Cruiser, Owner'S Manual

Page: 356 / 410

EMISSIONS CONTROL SYSTEM MAINTENANCE
The Scheduled Maintenance services listed in bold type
must be done at the times or mileages specified to ensure
the continued proper functioning of the emissions control
system. These and all other maintenance services in-
cluded in this manual, should be done to provide best
vehicle performance and reliability. More frequent main-
tenance may be needed for vehicles in severe operating
conditions, such as dusty areas and very short trip
driving.
Inspection and service should also be done anytime a
malfunction is suspected.
NOTE:
Maintenance, replacement or repair of the emis-
sions control devices and systems on your vehicle may be
performed by any automotive repair establishment or
individual using any automotive part that has been
certified pursuant to U.S. EPA or in the State of Califor-
nia, California Air Resources Board regulations.
MAINTENANCE SCHEDULES
There are three maintenance schedules that show re-
quired service for your vehicle.
First is “Maintenance Schedule B — All Engines.” It is for
vehicles that are operated under the conditions that are
listed below and at the beginning of the schedule.
•
Day and night temperatures are below 32°F(0°C).
•
Stop and go driving.
•
Extensive engine idling.
•
Driving in dusty conditions.
•
Short trips of less than 10 miles (16 km).
•
More than 50 percent of your driving is at sustained
high speeds during hot weather, above 90°F(32°C).
•
Trailer towing.†
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354 MAINTENANCE SCHEDULES