1996 Oldsmobile Cutlass Supreme Owner's Manuals

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 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 driver’s belt
is buckled.
2-45

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which. shows AIR BAG or the air bag symbol.
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 sensors,
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.
You will see this light flash
for a few seconds when you
turn your ignition to RUN or START. Then the light
should go out. This means
the system is ready.
If the air bag readiness light doesn’t come on when you
start your vehicle, or stays
on, or comes on when you
are driving, your air bag system may not work properly.
Have your vehicle serviced right away.
Charging ‘System Light
The charging system light
will come on briefly when
you turn on the ignition, as
a check to show you it’s
working. Then it should
go out.
.If it stays on, or comes on while you are driving,
you
may have a problem with the charging system. It could
indicate that you have a loose drive belt or another
electrical problem. Have it checked right away. Driving
while this light is on could drain your battery.
If you must drive a short distance with the light on, be
certain to turn off all your accessories, such as the radio
and air conditioner.

Brake System Warning Light
Your Oldsmobile’s hydraulic brake system is divided
into two parts. If one part isn’t working, the other part
can still work and stop you. For good braking, though,
~ you need both parts workmg well.
If the warning light comes on, there could be
a brake
problem. Have your brake system inspected right away.
BRAKE
This light should come on
briefly when you turn the
ignition key to
RUN. If it
doesn’t come on then,
have
it fixed so it will be
ready to warn you if
there’s a problem.
If the light comes on while you
are driving, pull off the
road and stop carefully. You may notice that the pedal is
harder to push.
Or, the pedal may go closer to the floor.
It may take longer to stop. If the light is still on, or if the anti-lock brake system warning light
is flashing, have
the vehicle towed for service. (See “Anti-Lock Brake
System Warning Light” and “Towing Your Vehicle” in
the Index
.)
1 C.’ UTION:
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident. If the light is still on or if the
anti-lock brake system warning light is flashing
after you’ve pulled
off the road and stopped
carefully, have the vehicle towed for service.
When the ignition is on, the brake system warning light
will also come on when
you set your parking brake. The
light will stay on if your parking brake doesn’t release
fully. If it stays on after your parking brake is fully
released, it means you have a brake problem.
2-47

Anti-Lock Brake System Warning Light
With the anti-lock brake system, this light will come
on when you start your
engine and it will stay
on for three seconds.
That’s normal.
If the light flashes when you’re driving, you don’t have
anti-lock brakes and there could be
a problem with your
regular brakes. Pull
off the road and stop carefully. You
may notice that the pedal is harder to push. Or, the pedal
may go closer to the floor. It may take longer to stop.
Vehicle” in the Index.)
, Have the .vehicle towed for service. (See.“Towing Your
Your regular brake system may not be working
properly
if the anti-lock brake system warning
light is flashing. Driving with the anti-lock brake system warning light flashing can lead to an
accident. After you’ve pulled
off the road and
stopped carefully, have the vehicle towed
for service.
If the anti-lock brake system warning light stays on
longer than normal after you’ve started your engine, turn
the ignition
off. Or, if the light comes on and stays on
when you’re driving, stop as soon as possible and turn
the ignition
off. Then start the engine again to reset the
system. If the light still stays on, or comes on again
while you’re driving, your Oldsmobile needs service. If
the light is on but not flashing and the regular brake
system warning light isn’t on, you still have brakes, but
you don’t have anti-lock brakes.
The anti-lock brake system warning light should come
on briefly 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.
2-48

Anti-Lock Brake System Active Light
LOW
TRAC
When your anti-lock system
is adjusting brake pressure
to help avoid a braking skid,
the anti-lock brake system
active light will come
on.
Engine Coolant Temperature Light
HOT
This light tells you that
your engine coolant has
overheated or your radiator
cooling fan is not working.
Slippery road conditions may exist if this light comes
on,
so adjust your driving accordingly. The light will
stay on for a few seconds after the system stops
adjusting brake pressure.
The anti-lock brake system active light also comes on
briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have
it fixed so it will be
there to
tell you when the system is active. If you
have been operating your vehicle under normal
driving conditions, you should pull
off the road, stop
your vehicle and turn
off the engine as soon as possible.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
2-49

'- .
You have a gage that
(shows the engine coolant
temperqture. If 'the gage
pointer'moves into the red
. - .
area, your engine is too hot!
.. , _.
That reading means the sanie thing as the warning iight.
It nieans that your engine coolant. has Overheated. If you
have been operating your vehicle
under normal driving
conditions,
you should pull off the road, stop your
vehicle kd
turn off the engine as soon as possible.
In "Problems on the Road," this manual sh0w.s what to
do.-See "Engine Overheating" in the Index.
, ',

Malfunction Indicator Lamp (Service Engine Soon Light)
I
SERVICE
ENGINE SOON
Your Oldsmobile 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 I1 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 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:
Light Flashing -- A misfire condition has been
detected.
A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Retailer or qualified service center diagnosis
and service is required.
Light On Steady -- An emission control system
malfunction has been detected on your vehicle.
Retailer or qualified service center diagnosis and
service may be required.
2-51

0 Reduce vehicle speed.
0 Avoid hard accelerations.
Avoid steep uphill grades.
I 0 If towing a trailer, reduce the amount of cargo being
hauled as soon as it is possible.
If the lightstops 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. Put your vehicle in PARK (P). 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
1 previous steps, and drive the vehicle to your retailer or
qualified service center for service.
1
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the.following:
Did you just put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine if the fuel
cap has been left
off or improperly installed. This will
allow fuel to .evap.orate into the atmosphere. A few
driving trips 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.
Are you low on fuel?
As your engine starts to run out of fuel, your engine may
not
run as efficiently as designed since small amounts of
air are sucked into the fuel line causing a misfire.
The
system can detect this. Adding fuel should correct this
condition. Make sure to install the fuel cap properly. It
will take a few driving trips to turn the light off.