CHEVROLET CORVETTE 1993 4.G Owners Manual

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I..
Your Corvette is equipped with -one of.
these instrument panel clusters, which
include indicator warning lights and
gages that are explained on the
following pages. Be sure to rad about
those that apply to the instrument panel
cluster for your vehicle.
coo
Tamper-Resisfaant Odornefer
Your-Corvette has a tamper-resistant
,odometer.
It wiII read OD0 ERR if
someone has tampered with it.
Speedometer
Press the ENG MET (EnglisWMetric)
button
on the Trip Monitor to switch
the di-splay b.etween miles per hour
(mph)
and kilometers per hour (lmkh). .. .

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Tachometer
The tachometer displays the engine: FOT the LT.5 engine, .the fuel will shut
speed in revolgtions per minute (r~m). off at 7200 rpm.
For tfie LT1 engine: the fuel will shut
off at qm-
t
NOTICE 1

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Gages can indicate when there may be
or 3s a problem with one of your
vehicle’s functions.. Often gages and
,warning lights work together to let you
how when theze’s
a, problem with your
vehicle,
When
one of the warning lights comes
on and stays on when youwe driving,
or when one of-the gages shows there
may be
a problem, check the section
that tells you what to de about itr Please
follow
the manuaI’s advice. Waiting to
.do repairs can be costly-and even
dangerous. So please get ta how your
warning lights
and gages. They’wa big
help.
Your vehicle also has a Driver Infomation,
Center that
works .along with the
warning lights
and gages. See the Index
under Driver Infomzatlcrn Center.
Gage Markings
The analog .gages pgovide a quick visual
reference to the actual measurements
of
these gages. However, they &e non-
linear, which means that the middle
hash marks on the analog gages do not
represent median
measurements for
these .gage
For accurate gage measurements refer
to the
GAUGES button .on the Trip
Mo,nitor (see the
Index under Trip
Monitor).
..

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Your fuel gage bars light up when the-
ignition ken, -or if the ignition is off,
wken you turn on your.parking lights,
to’ show you about how much fuel you
have left..
When the normal display -is ,down to .the
last
two bars, the message RESERVE
will appear on the left of the-:gag.e.
Here are threethings that some owners
ask about. None of these show a
problem with your bel gage:
At. the gas station, the gas pump shuts
.off be€ore the gage reads F (Full).
It takes a little more or. less fu.el to fill
up than the gage indicated. For
.example., the gage may have. indicated
-t-he tank was half full, but it actually
t0.olr.a 1.ittle more or. less than half the
tanlr’s capacity to ‘fill the tank.
The gage moves a lit& whmyau turn
.a c-arner or spee.d up.
For your fuel tank cap,acity, see Service
Station Information an the last page of-
this manual.
Engine Oil Preesure Gage
Your oil pressure gage shows the oil
pressute .in psi (ptiunds per. s-quare
inch)
or l engine is runnhg. Oil pressure. may
vary with engine -speed, outside
temperature and .oil viscosity. In fact,
while the engine Is warmirig tip, the oil
pressure will be higher than at the
:normal operating ternpaature,
Readings ab.ove-.the shaded area
indicate the.,normal operating range.
If.the gage reads in the shaded area
when you’re idling and stays therej oil
isn’t running thrDugh your engine
properly.

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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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LT1 Engine: Engine' Oil temperature
Gage
"LT5 Engiie: Engine Oil Temperature,
Gage
Voltmeter
Your chafging system gage will show
the rate of chafge-.when the engine is
running.
(When the engine is not
running, the- display measures the
voltage-
output of your battery.)
The reading will change sts the rate of
charge changes (with .engine speed,
etc.), but readings between the shaded
are.as indkate the noma1 operating.
range. Readings in either shaded area
indicate-a passible-problem with ydur
charging
system. The CHECK
GAUGES light will come on du-g
both high and.10-w battery voltages. See
your dealer
to have your system
sewiced immediately.
For accurate gage measurements refer
to the. GAUGES button on the Trip
Monitor
(se.e -the In&x under Trip
Monitor).

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This gage shows the engine coolant
temperature,
I If the gage pointer moves-into the shaded
area, yow-engine is too
hot! It meamthat
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 and turn off the engine as soon
as possible.
HOT COOLANT CAN BURN YOU
BADLY!
In Problems on the Road, the- manual
shows what to do. See the Ifidex under
Engine Overheating.
For -accurate gage measurements refer
to the
GAUGES button on the Trip
Monitor
(see Trip Monitov later in this
section).
If the LOW COOLANT light, located
-on the Driver Information Center,
comes on, your system is low on
coolant -and your engine may overheat.
Brake System Warning Light
Your Corvette’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 working
well.
If the warning light goes on, there could
be a brake problem. Have-your bralce
system inspected right away.
This light should come on as you start
the vehicle. If it doesn’t come on then,
have it
fixed.so it will be ready to warn
you if there’s a problem.
.-

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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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Check Gauges Light
This light will come on briefly whien y6u
are starting the engine. I€ the light
comes on and stays on while you are
driving, check your various gages to see
if they are in the warning zones.
If this light comes on and stays on with
the engine running, this indicates one of
the following conditions:
high oil temperature
high coolant temperattiE’
high battery voltage
low battery voltage
IOW oil pressure
or low fuel level (zero bars showing).
I 08
Security Light
The SECURITY light reminds you to
arm your theft deterrent system by
flashing when the ignition is in Lock-
and the doors are opened. It keeps
flashing until
you arm the theft
deterrent system
by locking the doors
using the power door lock button or the
Passive Keyless Entry system.
Once the system
is armed, the light
stops flashing
and remains lit. When the
last
door is shut, the light will stay on
for two seconds and then
go out. It will
also remain lit if the hatch is left open
but the theft deterrent system is still
armed.
If you close the doors and the hatch
without arming the system, the
SECURITY light goes out immediately.
When you re-enter the vehicle, the light
w.ill flash until
you close the door or the
hatch,
or turn the ignition .on. See the
Index under PASS-Key TM and Universal
.Theft Deterrent.

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1 Engine ~e. oni it or
The Engine Oil Life Monitor us&&
engine oil temperature and engine
revolutions
to 'determine when the oil is
nearly worn out.
There ,is a CHANGE OIL light on the
left side ,of the- instrument cluster. It
comes
on for a fkw seconds as a bulb
check when you sta-rtyour vehicle. It
mrnes on and stays on when it is time
to change yuur oil.
The CHANGE OIL light is only a
reminder.
You should change, your oil at
$he intervals recommended in your
Maintersance- Schedule menif the
CHANGE OIL 1-ight hasn't come on.
Resetting the Engine Oil Life
Monitor:
1, %LEU the key to the Run pasition, but
don't
start the engine.
2. Press the ENG MET button .on the
Trip Monitor. Within five seconds,
press the ENG MET button again.
3. Within five seconds of step 2, press
and hold the GAUGES button on
the Trip Monitor. The CHANGE
OIL light d flash.
4..Hold the GAUGES button until the.
CHANGE OIL light stops flashing
and goes out; This should take about
ten seconds. When the light goes out,
the Engine Oil Life Monitor is reset.
If it doesn't reset, tum the- ignition to
Of€ and repeat the procedure.