1998 CHEVROLET EXPRESS check engine light

Downloaded from www.Manualslib.com manuals search engine Air bags inflate with great force, faster than the
blink of an eye.
If you’re too close to an inflating
air bag, it could seriously injure you. This is true
even with reduced-force frontal air bags. Safety
belts help’keep you in position before and during
a crash. Always wear your safety belt, even with
reduced-force air bags. The driver should sit as
far back as possible while still maintaining
control of the vehicle.
If your vehicle has an air bag for the right front
passenger, please read this:
r
A CAUTION:
Children who are up against, or very close to,
an air bag when it inflates can be seriously
injured or killed. This is true even
if your vehicle
has reduced-force frontal air bags. Air bags plus
CAUTION: (Continued)
CAUTION: (Continued)
lap-shoulder belts offer the best protection for
adults, but not for young children and infants.
Neither the vehicle’s safety belt system nor its
air bag system is designed for them. Young
children and infants need the protection that a
child restraint system can provide. Always secure
children properly in your vehicle.
To read how,
see the part of this manual called “Children” and
see the caution labels on the sunvisors and the
right front passenger’s safety belt.
AIR
BAG
There is an air bag readiness
light on the instrument panel,
which shows
AIR BAG.
The system checks the
air bag electrical system for
malfunctions. The light tells
you if there is an electrical
problem. See “Air Bag Readiness Light” in the Index
for more information.
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Downloaded from www.Manualslib.com manuals search engine Never do this.
Here a child is sitting in a seat that has a
lap-shoulder belt, but the shoulder part is behind the child.
If the child wears the belt in this way, in
a crash the child might slide under the belt. The
belt’s force would then be applied right on the
child’s abdomen. That could cause serious or fatal injuries.
Wherever the child sits, the lap portion of the belt
should be worn low and snug on the hips, just touching
the child’s thighs. This applies belt force to the child’s
pelvic bones in
a crash.
Safety Belt Extender
If the vehicle’s safety belt will fasten around you, you
should use it. But
if a safety
belt isn’t long enough to fasten, your
dealer will order you an extender. It’s free. When you go
in to order it, take the heaviest coat you will wear,
so the
extender will be long enough for you. The extender will
be just for you, and just for the seat in your vehicle that
you choose. Don’t let someone else use it, and use it
only for the seat it is made
to fit. To wear it, just attach it
to the regular safety belt.
Checking Your Restraint Systems
Now and then, make sure the safety belt reminder light
and all your belts, buckles, latch plates, retractors and
anchorages are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from
doing its job, have it repaired.
Torn or frayed safety belts may not protect you in a
crash. They can rip apart under impact forces.
If a belt is
torn or frayed, get a new one right away.
Also look for any opened or broken air bag covers, and
have them repaired or replaced. (The air bag system
does not need regular maintenance.)
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Downloaded from www.Manualslib.com manuals search engine Parking Lots
If you park in a lot where someone will be watching
your vehicle, it’s best
to lock it up and take your keys.
But what
if you have to leave your ignition key? What if
you have to leave something valuable in your vehicle?
Put your valuables in a storage area, like your front
Lock all the doors except the driver’s.
storage
compartment.
Passlock@
Your vehicle is equipped with the Passlock
theft-deterrent system.
Passlock
is a passive theft-deterrent system. The system
is armed once the key is removed from the ignition.
Passlock enables fuel if the ignition lock cylinder is
turned with
a valid key. If a correct key is not used,
fuel
is disabled. During normal
operation, the SECURITY light will
go
off after the engine is started.
If the engine stalls and the SECURITY light flashes,
wait
until the light stops flashing before trying to restart
the engine. Remember
to release the key from the
START position as soon as the engine starts.
If you are driving and the SECURITY light comes on, you
will be able to restart the engine if you turn the engine off.
However, your Passlock system is not working properly
and must be serviced by your dealer. Your vehicle is not
protected by Passlock at this time. You may
also want to
check the fuse (see “Fuses
and Circuit Breakers” in the
Index). See your dealer for service.
If the SECURITY light comes on while the engine is
running, a problem has been detected and the system
may need service. See your dealer for service.
In an emergency, call the
GM Roadside Assistance
Center. See “Roadside Assistance’’ in the Index.
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Downloaded from www.Manualslib.com manuals search engine Turn Signal and Lane Change Signals
The turn signal has two upward (for right) and two
downward (for left) positions. These positions allow
you to signal a turn or a lane change.
To signal a turn, move the lever all the way up
or down. When the turn is finished, the lever
will return automatically.
H
LI
An arrow on the instrument
panel will flash
in the
direction of the turn or
lane change.
To signal
a lane change, just raise or lower the lever
until the arrow starts to flash. Hold it there until you
complete your lane change. The lever will return by
itself when you release it. As
you signal a
turn or a lane change, if the arrows flash
at twice the normal rate,
a signal bulb may be burned
out and other drivers may not see your turn signal.
If
a bulb is burned out, replace it to help avoid an
accident. If
the arrows don’t go on at all when you
signal a turn, check for burned-out bulbs and a blown
fuse (see “Fuses and Circuit Breakers”
in the Index).
Headlamp High/Low Beam Changer
To change the headlamps from low beam to high or high
to low, pull the multifunction lever all the way toward
you. Then release it.
When the high beams are
on, this light on the
instrument panel also will
be on.
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Downloaded from www.Manualslib.com manuals search engine Rotate the knob to the left to OFF to turn off your lamps
and lights.
Rotate the thumbwheel next to the switch knob up to
adjust instrument panel lights. Rotate the thumbwheel
up to the first notch
to return the radio display and
gearshift indicator Vacuum Fluorescence
(VF) display
to full intensity when the headlamps or parking lamps
are on.
Rotate the thumbwheel up to the second notch
to
activate the interior dome lamps.
You can switch your headlamps from high to low beam
by pulling
on the turn signalhigh beam lever.
A circuit breaker protects your headlamps. If you have
an electrical overload, your headlamps will flicker on
and off. Have your headlamp wiring checked right away
if this happens.
Headlamps On Reminder
A tone will sound when your headlamps are turned on
and your ignition is in
OFF, LOCK or ACCESSORY. If
you need to use your headlamps when the ignition
switch is in
OFF, LOCK or ACCESSORY, the tone can
be turned off by turning the thumbwheel next to the
parking lampheadlamp switch all the way down.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DIU can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.
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Downloaded from www.Manualslib.com manuals search engine Electronic Road-Speed Governor (Gasoline Engines) (Option)
This optional system automatically controls vehicle top
speed. The system controller receives a signal from the
vehicle speed sensor and reduces power when the
vehicle speed reaches
the maximum 65 mph (105 kdh)
governed speed.
Warning Lights, Gages
and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
locate them.
Warning lights and gages can signal that something is
wrong before it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save you or
others from injury.
Warning lights come on when there may be
or is a
problem with one of your vehicle’s functions. As you
will see in the details on
the next few pages, some
warning lights come on briefly when
you start the
engine just to let you know they’re working. If you are
familiar with this section, you should not be alarmed
when this happens. Gages
can indicate when there may be or is a problem
with one
of your vehicle’s functions. Often gages and
warning lights work together
to let you know when
there’s a problem with your vehicle.
When one of
the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be a problem, check the section that tells you
what to do about it. Please follow this manual’s advice.
Waiting to do repairs can be costly
-- and even
dangerous.
So please get to know your warning lights
and gages. They’re a big help.
Safety Belt Reminder Light
When the key is turned to RUN or START, a tone will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver’s safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about
20 seconds, then it
will flash for about
55 seconds.
If the driver’s belt is already buckled, neither the tone
nor the light will come on.

Downloaded from www.Manualslib.com manuals search engine Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR BAG. The system checks the
air bag’s electrical system for malfunctions. The light
tells you if there is an electrical problem. The system
check includes the air bag sensor, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see “Air
Bag” in the Index.
AIR
BAG
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light
should
go out. This means
the system is ready.
If
the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away. The
air bag readiness light should flash for
a few
seconds
when you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed
so it will be
ready to warn you if there is a problem.
Charging System Light
This light should come on
briefly
when you turn on the
ignition, before starting the
engine,
as a check to show
you it is working.
After the engine starts, the light should
go out. If it stays
on or comes on while you are driving, you may have a
problem with your charging system. It could indicate a
problem with the alternator drive belt, or some other
charging system problem. Have it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with this light
on, it
helps to turn off all your accessories, such as the radio
and air conditioner.
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Downloaded from www.Manualslib.com manuals search engine Malfunction Indicator Lamp (Service Engine Soon Light) (Gasoline Engine)
81 Your vehicle is equipped
SERVICE
ENGINE
I
SOON
with a computer which
monitors operation
of the
fuel, ignition and emission
control systems.
This system is called OBD I1 (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
SERVICE ENGINE SOON 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 a while, 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.
This light should come on, as a check to show you it is
working, when
the ignition is on and the engine is not
running. If the light doesn’t come on, have it repaired.
This light
will also come on during a malfunction in one
of two ways:
0
0
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system
on your
vehicle.
GM or qualified service center diagnosis
and service may be required.
Light On Steady -- An emission control system
malfunction has been detected on your vehicle.
GM
or qualified service center diagnosis and service may
be required.
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