
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” (MIL). 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 authorized dealer for service as
soon as possible.
CAUTION!
•
Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and drivability. The
vehicle must be serviced before any emissions
tests can be performed.
•
If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines
that the fuel filler cap is loose, improperly
installed, or damaged, a loose gascap indicator
will display in the EVIC telltale display area.
Refer to “Electronic Vehicle Information Center (EVIC)”
in “Understanding Your Instrument Panel” for further
information. Tighten the fuel filler cap properly and press
472
MAINTAINING YOUR VEHICLE
Summary of Contents for Grand Cherokee SRT8 2012
Page 1: ...Grand Cherokee O W N E R S M A N U A L 2 0 1 2 SRT8 ...
Page 4: ......
Page 8: ...6 INTRODUCTION ...
Page 102: ......
Page 138: ...136 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Page 139: ...3 UNDERSTANDING THE FEATURES OF YOUR VEHICLE 137 ...
Page 140: ...138 UNDERSTANDING THE FEATURES OF YOUR VEHICLE ...
Page 285: ...INSTRUMENT CLUSTER 4 UNDERSTANDING YOUR INSTRUMENT PANEL 283 ...
Page 371: ...Operating Tips Chart 4 UNDERSTANDING YOUR INSTRUMENT PANEL 369 ...
Page 372: ......
Page 419: ...5 STARTING AND OPERATING 417 ...
Page 460: ......
Page 522: ......
Page 549: ...INDEX 10 ...
Page 568: ...NOTES ...
Page 569: ...NOTES ...
Page 570: ...NOTES ...
Page 572: ...Chrysler Group LLC 12WK742 126 AA First Edition Printed in U S A ...