If the light continues to flash, when it is safe to do so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart
the engine. If the light remains on steady, see “If
the Light Is On Steady” following. If the light is still
flashing, follow the previous steps, and see your dealer
for service as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. See
Filling Your Tank on page 5-7. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-4. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, misfiring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has the
proper test equipment and diagnostic tools to fix any
mechanical or electrical problems that may have
developed.
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Summary of Contents for 2003 Cadillac DeVille
Page 5: ...These are some examples of vehicle symbols you may find on your vehicle v ...
Page 6: ... NOTES vi ...
Page 17: ...Put someone on it Get it up to speed Then stop the vehicle The rider doesn t stop 1 11 ...
Page 68: ... NOTES 1 62 ...
Page 127: ...Instrument Panel Overview 3 4 ...
Page 164: ...Digital Cluster United states and Canada versions shown 3 41 ...
Page 165: ...Analog Cluster United States version shown Canada similar 3 42 ...
Page 283: ...Engine Compartment Overview When you open the hood you ll see 5 12 ...
Page 375: ... NOTES 5 104 ...
Page 392: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 17 ...
Page 393: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 18 ...