1993 CHEVROLET CORVETTE service

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.Driving. your vehicle with low oil
pressure can cause extensive engine
-damage.
II D4
This gage shows your oil temperature in
degrees Fahrenheit +
It's normal fop the oil temperature to
vary, depending on the type of driving
you do and the weather conditions.. If
"you drive for a long time, such as on a
trip, the gage will show a higher reading-
than
if you had driven for only a short
time. And if it's hot -outside, the-reading
will be higher than if it were cold outside.
If your oil temperature approaches the
shaded area and stays there for some
time; your oil temperature is too high.
Check
the engine oil levei and bring
your vehicle in for service.
You should
also check the engine coolant temperature.
If your engine is to.0 hot, see the.Index
under Engine Cooling System.
For accurate gage measurements refer
to the GAUGES button on the Trip
Monitor (see the
Index under Trip
Monitor).

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Door Ajar Light
This .li.ght.tells you that one of the doors
isn2 fully closed. Have your Corvette
serviced if this light
comes on and stays
on when your doors are closed.
DOOR AJAR Reminder
If a-do-or is not fully-closed when the
ignition ley is in the Run position, the
hformafion center in the instrument
cluster will diq$ay DOOR AJAR.
If the ley is in the Lock position and
the driver’s door is ajaq :a chime will
sound also. Your vehicle has a theft
deterrent system.
See the Index under
Universal Theft D-gterrent.
This; light will also cor ne^ on when y0.u
set your parking brake:, and Will stay on
if your parking brake doesn’t releast.
fully. If.itstay-s on after your parking
brake is fully released, it means you
have a brake. problem.
If the light comes on while driving, pull
off the road and stop carefully. You may
notice that
the p.eda1 is harder ta push.
Or, the-pedal may go closerto the floor.
It may tale longer to stop. If the light is
still on, have the vehi-cle towed fo’r
service. (See the Index under Towing
Your Corvette. )
When yo.ur ,aziti-loclr systerfi is working,
the
ABS ACTIVE light will come on.
This means that slippe-ry road
conditions may exist. Adjust your
driving accordingly.
See the Index
under ABS Active Light.
if the brake light, SERVICE ASR light
and SERVICE ABS Iight come on at
the same time, you may have low brake
fluid. See the Index under Brake Master
Cylinder.
GAU I IUN I
-with the brake- warning light. on can
lead .to awaccident. ,If thclight is
stiI.1 .on after you’ve.:,ptilled off the
mad- .ad.
st0ppe.d carefully; :have
the vehicle.towed
for service.

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..I I
Low Coolant Warning Light
If this light comes on, your system is
overheat. See the Index under Engine
Coolant and have your vehicle serviced
a low on coolant and the engine may
Driver Infomtation Center
The Driver Information Center (DIC)
gives you important safety and
maintenance
facts. It will display
warning lights
€or the following:
LOW COOLANT
LOW TIRE PRESSURE [Option]
SERVICE LTPWS (Low Tire
Pressure Warning System) [Option]
INFL REST (Inflatable Restraint)
(Charging System)
I12
SERVICE ABS (Anti-Lock Brake
SERVICE ENGINE SOON
SERVICE RIDE CONTROL
[Option]
LOW OIL
ABS ACTIVE
SERVICE ASR (Acceleration Slip
Regulation)
ASR ACTIVE
ASR OFF
PASSIVE KEYLESS ENTRY
System) as soon as you can.

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Low 7ire Pressure Warning Light
(OPTION)
The LTPWS has a sensor 'on each road
wheel that transmits-to
a receiver on the
instrument panel.
The system operates
on a radio frequency subject
to Federal
Communications Cbmission
(FCC)
Ruks.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following
two conditions: (1) This
device may not cause harmful
interhence,
and (2) This device.must
accept
any interhence received,
including interference that-may cause
undesired operation.
Changes or modifications to- this system
by other than an authorized service
facility could void authorization to use
this equipment.
The Low Tre Pressure Warning System
(LTPWS) monitors the
air pressure in
each road tire (except the spare tire)
while the car is being driven. The
LTFWS will not warn the driver if a tire
is
already flat before the vehicle is started.
This light comes on whenever a tire
pressure
goes below 25 psi (I 75 Ha) in
any road tire while your Corvette is being
driven.
You must drive the car faster than
25 mph (40 km/h) and for more than 2
miles (4 h) -for the system to work
properly.
The Low Tire Pressure Warming
Light also warns you if any of the
system's comp.onents-are not working
properly. The
LOW TIRE PRESSURE
light will remain on until the ignition is
turned
off. This will also reset the system.
When the LOW TIRE PRESSURE
fight comes on, check the tire -pressure
.in
all four road tires as soon as you can,
using the
tire pre:ssure gage.provided in
thesenter console. Adjust the tire
pressure as needed to those shown on
the Tire-Loading Information label
10-cated
on the driver's door, The LOW
TIRE PRESSURE light may come on
if your vehicle is close to aaother
vehicle that has
a Low Tire Pressure
Warning System
and has a tire-with low
pressure.
The LTPWS sensor is directly opposite
the valve stem on the tire. Take extreme
care when servicing or
having your tires
serviced. The sensors may not work
properly
if damaged.
If you need to take the tire off the wheel,
do it at a
90" angle from the valve stem.
Removing the tire from the wheel at any
.. 1

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point more than 90" from the valve stem
may damage the LTPWS sensors..
If this light stays on after the tire pressure
is properly adjusted, see your dealer.
I14
Service LTPWS Light (OPTION)
The SERVICE LTPWS light comes on
whenever a Low Tire PressureWrtming
System component is not working
properly. It
may also come on during
law speed (less than 25 rnph,
40 Idh) or. stop-and-go driving, even
though tire pressure is above 25 psi
(175 kPa-) in each tire. This light turns
o€f when the electronic receiver gets a
coded signal
from each sensor..
.Check the system
by turning the ignition
off, then on again. If'lhe system is
worling, the light should come on-and
then go out. See your dealer if the light
remains on
or doesn'.t come on .at ail.
If your vehicle is operated for three
consecutive half-hour time periods
without being moved,
the .. SERVICE
LTPWS light will come on. Each time
the vehicle
is started thereafter, the light
will come mand stay on until the vehicle.
is moved. When the vehicle
is moved, the-
SERVICE LTPWS light will go out.
This is a normal condition, and does
not indicate
anything-wrong with the
system.
(If you would Iilre to permanently
clear the
SERVICE LTPWS light from
your Driver Information Center, see
your dealer for assistance.)
The
SERVICE LTPWS light will also
corne. on if.the vehicle is operated for
three consecutive half-hour periods-
when
,dl four tires- have been replaced
with
snow tires or aftermarket tires, or
if all four LT-PWS sensors. are damaged
or missing. The SERVICE LTPWS
light will stay o.n until the system
receives
a sensor signal. I€ the light
'comes on and stays on even when the
vehicle is driven, this may .indicate
a
problem. See your dealer for assistance.
To prevent damage to the sensor, follow
the instructions
for mounting and
dismounting tires in
the 1993 Corvette,
Service Manua.1.
LTPWS can warn you of a Idw tire
situation-or
a system problem, but it
-does not substitute .foT.norrnal tire
maintenance. See the
Itzdex under Tires;

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'I
ASR Off Ught
This indicator will coine on when you
turn the ignition on and remain on for a
few seconds during a system check. It
also comes on and stays on when the
ASR button is pressed to turn the
system off. See the Index under
Acceleration Slip Reguluat'a'on (ASR)
system.
I16
Seruice ASR Light
This indicator will come on when you
turn the ignition on and remain on for a
few seconds during a.system check.
If it
stays on, this may indicate a problem
with the ASR system. See your dealer
for
service.
A .'
. .. ..
~f you let ymi tires :spin at-
- high .speed when.~e.. .ASR. ..
.OFF light is.:on, :or dieg-the :
',SERVICE ASR Iight ,is on, .your . .'
tires can pplode,.and, you 'or others
could .be injured. And, spinning
your tires
with either- of -these light2
on can cause the-automatic . ;
transmission to overheat or can .:
'cause other problems. That .could
cause an engine fire or other
damage.
When you're stuck, spin
the wheels as little
as possible. If'
your vehicle is stuck; don't: .spin the
wheels above 35 mph (56 Wh) as
shown on the speedometer,

Downloaded from www.Manualslib.com manuals search engine NOTICE i I 1 ABS Active Light
This light c0me.s on when the-anti-lo-clr
brake system is engaged to prevent
wheel lock when
braking. You may hear
or. feel the-anti-lock system running
through a diagnostic test. This light will
also
come on as a test for .about two
seconds
when the engine is ‘started.
Service ABS Light
This light will come on as a test for
.about- two seconds when the engine is
.started.
If it stays on, - or comes an while you are
driving, carefully stop your vehicle as
.soon as you can and turn the ignition
off. Then start the engine to restart the
system.
If the SERVICE ABS light
stays
on, or it comes on again while you
are driving; the anti-lock system needs
service. Unless the BRAKE warning
light is also on,. you will still have
brakes, but not ABS.
See the Index under-How the Anti-Lock
SyStePn Works. ..

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Charging System Light
The charging system light will come on when
you turn on the ignition, but the
engine
is not running, as a check to
show you it is working. Then it should
go out. If it stays on when the engine is
running; or comes on while you are
driving,
you may have a problem with
the electrical charging system. It could
indicate that you have. a loose or broken
drive
belt or another electrical problem.
Have it checked right away. Driving
while thisJight
is. on could drain your
battery.
If you must drive a short distance with
the lght un, be certain to turn of€ aU.
your accessories, such as the radio and
air conditioner.
Low Oil Light
This light will come on for a few
seconds wheri
you start your vehicle
and
will stay on if your oil is '/z to 1%
quarts low (with the vehicle nearly
level).
See the Index under Engine UiE.
For the LT5 Engine Only: If this light
comes on, and you need to verify the oil
level, let
your vehicle sit for approximately
two hours
with the engine off before
checlung the
oil, See the Index under
Checking Engine Oil Level for the
proper procedure.
You should check your oil level
regulariy.
This light is an added
reminder.
Malfuncfion Indicator Lamp
(Senrice hghe Soon Light)
A computer monitors operation of your
fuel, ignition and emission control
systems. This light should
come on
when the ignition is on, but the engine
is not running,
as a check to show you it
is working. If
it does not come on at all,
have it fixed right away. If it stays on, or
it comes on while you
are driving, the
computer is indicating th,at you have a
problem.
You should take your vehicle
in for service soon.