Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with 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, your emission controls may not
work as well, your fuel economy may not be as good,
and your engine may not run as smoothly. This could
lead to costly repairs that may 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 may cause this light to come on.
Modifications to these systems could lead to costly
repairs not covered by your warranty. This may also
result in a failure to pass a required Emission
Inspection/Maintenance test.
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Содержание GMC Yukon Denali 2005
Страница 5: ...These are some examples of symbols that may be found on the vehicle v...
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Страница 35: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 1 29...
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Страница 142: ...Instrument Panel Overview 3 4...
Страница 312: ...Engine Compartment Overview When you open the hood on the VORTEC 6000 V8 engine here is what you will see 5 12...
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Страница 429: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6 15...
Страница 430: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6 16...