1996 PONTIAC PONTIAC check engine light

When the PASS-Key I1 system senses that someone is
using the wrong key, it shuts down the vehicle’s starter
and fuel systems. For about three minutes, the starter
won’t work and fuel won’t
go to the engine. If someone
tries to start your vehicle again or uses another key
during this time, the vehicle will not start. This
discourages someone from randomly trying different
keys with different resistor pellets in an attempt to make
a match.
The ignition key must be clean and dry before it’s
inserted in the ignition or the engine may not start.
If the
engine does not start and the SECURITY light is on,
the
key may be dirty or wet. Turn the ignition off.
Clean and dry the, key. Wait about three minutes and try
again. The SECURITY light may remain on during this
time.
If the starter still won’t work, and the key appears
to be clean and dry, wait about
three minutes and try
another ignition key. At this time, you may also want to
check the fuse (see “Fuses and Circuit Breakers” in the
Index).
If the starter won’t work with the other key, your
vehicle needs ‘service. If your vehicle does start, the first
ignition key may
be faulty. See your Pontiac dealer or a
locksmith who can service
the PASS-Key 11.
If you accidentally use a key that has a damaged or
missing resistor pellet, the starter won’t work and the
SECURITY light will flash. But you don’t have to wait
three minutes before trying another ignition key.
See your Pontiac dealer
or a locksmith who can service
the PASS-Key
11 to have a new key made.
If you’re ever driving and
the SECURITY light comes
on, you will be able to restart your engine
if you turn
it off. Your PASS-Key 11 system, however, is not
working properly and must
be serviced by your
Pontiac dealer. Your vehicle is not protected by the
PASS-Key
I1 system.
If you lose or damage a PASS-Key
II ignition key,
see your Pontiac dealer or a locksmith who can service
PASS-Key I1 to have a new key made. In an emergency,
call the Pontiac Roadside Assistance Program at
1-800-ROADSIB or 1-800-762-3743.
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Wslrr!ing Lights, Gages and Indicators
This part des’cribes 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 QT 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.
I!;.. ’ ’
I.
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 chime 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 until the driver3
belt
is buckled.
,.
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Malfunction Indicator Lamp
(Service Engine Soon Light)
SERVICE
ENGINE SOON
Your Pontiac is equipped
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.
(In Canada, OBD 11 is replaced by
Enhanced Diagnostics.) 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, which
may prevent more serious
damage to your vehicle. This
system is also designed to assist your s~ewice technician
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, Gave it repaired.
This light will also come on during a malfunction in one
of two ways:
fight Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the epission control system on your
vehicle. Dealer or qualified service center diagnosis
and service
is required.
Light On Steady -- An emission control system
malfunction
has been detected on your vehicle.
Dealer or qualified service center diagnosis and
service may
be required.
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Have you recently changed,brands of fuel?
If
so, be sure to fuel’ your vehicle with quality fuel (see
“Fuel” in the Index). 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 this condition, 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.
Oil Warnine Light
If you have a problem with
your oil, this light my stay
on after you start your
engine, or come on when
you are driving.
This indicates that oil is not going through your engine
quickly enough to keep
it lubricated. The engine could
be low on oil
or could have some other oil problem.
Have it fixed right away.
The oil light could also come
on in two other situations:
When the ignition is on but the engine is not running,
the light will come on as
a test to show you it is
working, but the light will go out when you turn the
ignition to START. If it doesn’t come on with the
ignition
on, you may have a problem with the fuse or
bulb. Have
it fixed right away,
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0 If you make a hard stop, the light may come on for a
moment. This is normal.
A CAUTION:
-
Don’t keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your
oil as soon as possible and have your
vehicle serviced.
I NOTICE: I
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
Low Oil Level Light
LOW OIL
LEVEL
Your engine is equipped
with an oil level monitoring
system. When the ignition
key is turned on, the LOW
‘OIL LEVEL light will
briefly flash. If the light
does not, flash, have it fixed
so it will be ready to warn
you if there’s a problem.
If the light stays on, stop the vehicle on a level surface
and turn the engine
off. Check the oil level using the
engine oil dipstick. (See “Engine Oil” in the Index.)
If the light does not flash, have the low oil level sensor
system repaired
so it will be ready to warn you if there’s
a problem.
,
The oil level monitoring system only checks oil level
during the brief period between key on and engine

crank. It does not monitor engine oil level when the “ .
engine is running. Additionally, an oil level check is
only performed if the engine has been turned off for a
considerable period of time, allowing the oil normally in
circulation to drain back into the
oil pan.
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Low Fuel Light
Ill If your fuel is low, a light
LOW
FUEL
will come on and stay on
until you add fuel. It will
also
come on for a few
seconds when you first turn
on the ignition as
a check to
show you it's working. If it
doesn't come on then, have
it fixed.
Trip Calculator (Option)
b INSTECON
fi FMp b AVGECON 3 8:8 8:8.8 MVGMPH'F L/lOOh/h%
b TRIP b AVG SPEED
ELAPSED
b FUELUSED
RANGE
When you start your engine, the trip calculator will
display a mode. A lighted arrow shows which mode
is displayed.
INST ECON: Shows your fuel economy when you
select this mode. This display will update every second
and cannot be reset.
AVG ECON: Shows your average fuel economy since
you last reset this mode.
AVG SPEED: Shows your average speed since you last
reset
this mode. It counts anly the time the engine is
running. The display will be updated every three
seconds until you select another mode.
FUEL USED: Shows the total amount of fuel used
since you last reset this mode. The amount can be
displayed in gallons or liters.
RANGE: Shows how much farther you can travel with
the fuel you have before refueling.
I€ there is less than
one-eighth of a tank,
LOFUEL will be displayed. If
the fuel level
is low enough, LOFUEL will show on
the display in all modes. The message will flash for
60 seconds and then stay on until you add more fuel.
You can't reset RANGE mode. Range is updated
automatically when you reset AVG
ECON.
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And this warning light on
the instrument panel will
come on briefly when you
start your vehicle.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. ‘You
may hear a momentary motor or clicking noise while
this test
is going on, and you may even notice that your
brake pedal moves a little. This is normal.
If there’s a problem with the anti-lock brake system, the
anti-lock brake system warning light will stay on or
flash. See “Anti-Lock Brake System Warning Light” in
the Index. Here’s how anti-lock works. Let’s say
the road is wet.
You’re driving safely. Suddenly an animal jumps out in
front of you.
You slam on the brakes. Here’s what happens with
ABS.
A computer senses that wheels are slowing down. If one
of the wheels is about to stop rolling, the computer will
separately work the brakes at each front wheel and at the
rear wheels.
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Turn Signals When Towing a Wailer
When you tow a trailer, your vehicle may need a
different turn signal flasher and/or extra wiring. Check
with your Pontiac dealer. The green arrows on your
instrument panel will
flash whenever you signal a turn
or lane change. Properly hooked up, the trailer lamps
will also flash, telling other drivers you’re about to
turn,
change lanes or stop.
When towing a trailer, the green arrows on your
instrument panel will, flash for turns even if the bulbs
on
the trailer are burned out. Thus, you may think drivers
behind you are seeing your signal when they are not.
It’s important to check occasionally
to be sure the trailer
bulbs are still working.
Your vehicle has bulb warning lights. When you plug a
trailer lighting system into your vehicle’s lighting
system, its bulb warning lights may not let you
know if
one
of your lamps goes out. So, when you have a trailer
lighting system plugged
in, be sure to check your
vehicle and trailer lamps from time to time to be
sure
they’re all working. Once you disconnect the trailer
lhmps,
the bulb warning lights again can tell you if one
of your vehicle lamps is out.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don’t shift
down, you might have to use your
brakes so much that
they wouJd get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to around
45 mph (70 km/h) to reduce the
possibility
of engine and transaxle overheating.
If you have overdrive, you may want to drive in
THIRD (3), instead of DRIVE (D).
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