Malfunction Indicator Lamp
Check Engine Light
Your vehicle has a
computer which
monitors operation
of the fuel, ignition,
and emission control
systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is
intended to assure that emissions are at
acceptable levels for the life of the vehicle,
helping to produce a cleaner environment.
The check engine light comes on to indicate
that there is a problem and service is required.
Malfunctions often will be indicated by the
system before any problem is apparent. This
may prevent more serious damage to your vehicle.
This system is also designed to assist your
service technician in correctly diagnosing
any malfunction.
Notice: If you keep driving your vehicle with
this light on, after awhile, the emission controls
might not work as well, your vehicle’s fuel
economy might not be as good, and the engine
might not run as smoothly. This could lead
to costly repairs that might not be covered
by your warranty.
Notice: Modifications made to the engine,
transmission, exhaust, intake, or fuel system
of your vehicle or the replacement of the
original tires with other than those of the same
Tire Performance Criteria (TPC) can affect
your vehicle’s emission controls and can cause
this light to come on. Modifications to these
systems could lead to costly repairs not
covered by your warranty. This could also
result in a failure to pass a required Emission
Inspection/Maintenance test. See Accessories
and Modifications on page 468.
258
Summary of Contents for Silverado Classic 2007
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 106: ... NOTES 106 ...
Page 207: ... NOTES 207 ...
Page 354: ... NOTES 354 ...
Page 484: ...When you open the hood on the 8 1L V8 engine here is what you will see 484 ...
Page 606: ...606 ...
Page 634: ...Engine Drive Belt Routing A Air Conditioning Compressor V6 Engines V8 Engines 634 ...
Page 660: ... NOTES 660 ...