User Manual - Page 138

For 2003 ALERO.

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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 drive the vehicle
to your dealer or qualified service center for service.
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?
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
cause your engine not to run as efficiently as designed.
You
may notice this as stalling after start-up, stalling
if
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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,
have your dealer or qualified service center check
the vehicle. Your dealer has the proper test equipment
and diagnostic tools to fix any mechanical or electrical
problems that may have developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.
Here are some things you need to know in order to help
your vehicle pass an inspection:
Your
\.lehic!e
wi!!
not
pass
this
inspectinn
if
the
SERV!CE
ENGINE SOON or CHECK ENGINE light is on or not
working properly.
3-33
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