2003 Chevrolet Tahoe Owner's Manual - Page 198

2003 Chevrolet Tahoe Manual

Page 198 highlights

If the Light is Flashing The following may prevent more serious damage to your vehicle: Reducingvehiclespeed. Avoidinghardaccelerations. 0 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 5-9. 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? Avoiding steep uphill grades. If you are towing a trailer, reduce the amount of cargo being hauled as soon as it is possible. If the light stops flashing and remains on steady, see "If the Light Is On Steady" following. 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 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. 3-47

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If
the
Light is Flashing
The
following
may
prevent
more serious damage
to
your
vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
0
Avoiding steep uphill grades.
If
you
are
towing a trailer, reduce the amount of
cargo
being
hauled
as
soon
as
it is possible.
If
the
light
stops
flashing
and remains on steady,
see
“If
the Light
Is
On
Steady”
following.
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
5-9.
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.
3-47