service indicator CHEVROLET CORVETTE 1994 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Features and Controls
RIDE CONTROL
SPORT
To@F
fl
-
PS c
Selective Ride Control
(OPTION)
This knob is on the center console. Turn i
to select the ride control of your choice:
TOUR: Use for city and highway driving
Provides a smooth, soft ride.
SPORT: Use where road conditions or
personal preference demand more control
Provides more “feel,” or response to the
road conditions.
PERF: Use for performance driving.
Provides tight, firm ride and precise
response to road conditions. ‘TOUR” and “SPORT” will
provide a
imilar ride at low speeds around town,
md both settings will increase control
tnd firmness at higher speeds. “SPORT,”
lowever, will adjust more at ‘higher
;peeds than “TOUR” will.
,‘PERF” will provide much more
Zontrol and a firmer ride at all speeds.
You can select a setting at any time.
Based on your speed,
the system
wtomatically adjusts to provide the best
aide and handling. Select a new setting
whenever driving conditions change.
The “SERVICE
RIDE CONTROL” light
monitors the system. Refer to “Service
Ride Control Light” in the Index.
Limited-Slip Rear Axle
Your rear axle can give you additional
traction on snow, mud, ice, sand or gravel.
It works like a standard axle most
of the
time, but when one of the rear wheels
has no traction and the other does,
the
limited-slip feature will allow the wheel
with traction to move the vehicle.
Parking
Parking Brake
To set the parking brake: Hold the brak
pedal down. Pull the parking brake lever
up, then move it back down. This sets
your parking brake, even though the leve
is down. If the ignition is on, the parking
brake indicator light will come on.
... 56

Downloaded from www.Manualslib.com manuals search engine I
1
E
E
1
S
t
r
r
’arking Brake Indicator Light
rhis light will come on when you set your
mking brake, and it will stay on if your
)arking brake doesn’t release fully.
rhis light should also come on as you
tart the.vehicle. If it doesn’t come on
hen, have it fixed
so it will be ready to
cmind you if the parking brake hasn’t
&eleased fully.
SERVICE
Anti-Lock Brake System Warning
Light
With anti-lock, this light will come on
when you start your engine and may stay
on for about two seconds. That’s normal.
If the light doesn’t come on, have it fixed
so it will be ready to warn you if there is i
problem.
If the light stays on, turn the ignition off.
Or, if the light comes 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 Corvette needs service. If
the regular brake system warning light
isn’t on, you still have brakes, but you
don’t have anti-lock brakes.
If the regular
brake system warning light is also on, you
don’t have anti-lock brakes and there’s a
problem with your regular brakes. See
“Brake System Warning Light” earlier in
this part.
85 ...

Downloaded from www.Manualslib.com manuals search engine SERVICE
SOON
0
Malfunction Indicator Lamp (Service Engine 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 that you have a
problem.
You should take your vehicle in
for service soon.
NOTICE:
If you keep driving your vehicle
with this light on, after a while the
emission controls won’t work as
well, your fuel economy won’t be as
good and your engine may not
run as
smoothly. This could lead to costly
repairs not covered by your warranty.
W
OIL
PRESS
PSI
. .,
Engine Oil Pressure Gauge
This gauge tells you if there could be a
problem with your engine oil pressure.
The engine oil pressure gauge shows the
engine oil pressure
in psi (pounds per
square inch) or kPa (kilopascals) when
the engine is running. Oil pressure
should be
20 to 80 psi (140 to 550 kPa).
It may
vary with engine speed, outside
temperature and oil viscosity, but readings
above the shaded area show the normal
operating range. Readings in the shaded
area tell you that the engine
is low on oil,
or that you might have some other oil
problem. See “Engine Oil” in the Index.
91 ...

Downloaded from www.Manualslib.com manuals search engine Service and Appearance Care
NOTICE:
Don’t let someone put in the
wrong kind of fluid. For example,
just a few drops of mineral-based
oil, such as engine oil, in your
brake system can damage brake
system parts
so badly that they’ll
have to be replaced.
Brake fluid can damage paint,
so
be careful not to spill brake fluid
on your vehicle. If you
do, wash it
off immediately. See “Appearance
Care” in the Index.
Brake Wear
Your Corvette has four-wheel disc brakes.
Disc brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads are
worn and new pads are needed. The
sound may come and go or be heard all
the time your vehicle is moving (except
when you are pushing
on the brake pedal
firmly).
I NOTICE:
I
Continuing to drive with worn-out
brake pads could result in costly brake repair.
Some driving conditions or climates may
cause a brake squeal when the brakes are
first applied or lightly applied. This does not mean something is wrong with your
brakes. Brake linings should always be
replaced as complete axle sets.
Brake Pedal Travel
See your dealer if the brake pedal does
not return to normal height, or if there is
a rapid increase in pedal travel. This
could be a sign of brake trouble.
Brake Adjustment
As you make brake stops, your disc
brakes automatically adjust for wear.
Replacing Brake System Parts
The braking system on a modern vehicle
is complex. Its many parts have to be of
top quality and work well together
if the
vehicle is to have really good braking.
Vehicles we design and test have
top-quality GM brake parts in them, as
your Corvette does when it is new. When
you replace parts of your braking system
- for example, when your brake linings
wear down and you have to have new
ones put in
- be sure you get new
genuine GM replacement parts. If you
don’t, your brakes may no longer work
properly. For example,
if someone puts
in brake linings that are wrong for your
vehicle, the balance between your front
and rear brakes can change, for the worse. The braking performance you’ve come to
expect can change in many other ways
if
someone puts in the wrong replacement
brake parts.
. . .I94

Downloaded from www.Manualslib.com manuals search engine I
When It’s Time for New Tires
One way to tell when it’s time for new
tires is to check the treadwear indicators,
which
will appear when your tires have
only
2/32 inch (1.6 mm) or less of tread
remaining.
You need a new tire if
0 You can see the indicators at three or
You can see cord or fabric showing
0 The tread or sidewall is cracked, cut
more places around the
tire.
through the tire’s rubber.
or snagged deep enough to show cord
or fabric.
0 The tire has a bump, bulge or split.
0 The tire has a puncture, cut, or other
damage that can’t be repaired well
because of the size or location of the
damage.
Buying New Tires
To find out what kind and size of tires
you need, look at the Tire-Loading
Information label.
The tires installed on your vehicle when it
was new had a Tire Performance Criteria
Specification (TPC Spec) number on each
tire’s sidewall. When you get new tires,
get ones with that same TPC Spec
number. That way, yobr vehicle will
continue to have tires that are designed
to give proper endurance, handling,
speed rating, traction, ride and other
things during normal service on your
vehicle. If your tires have an all-season
tread design, the TPC number will be
followed by a
“MS” (for mud and snow).
If you ever replace your tires with those
not having a TPC Spec number, make
sure they are the same size, load range,
speed rating and construction type (bias,
bias-belted or radial) as your original
tires.
Uniform Tire Quality Grading
The following information relates to the
system developed by the United States
National Highway Traffic Safety
Administration which grades tires by
treadwear, traction and temperature
performance. (This applies only to
vehicles sold in the United States.)
Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled conditions
207. . .

Downloaded from www.Manualslib.com manuals search engine Replacement Bulbs
Air Conditioningmeater Control ....................................... 37
Automatic Transmission Indicator
.................................. 194NA
Backup
......................................................... 1 156
Center High-Mounted Stoplight (except ZR-1)
.......................... 1156
Center High-Mounted Stoplight (ZR-
1) ................................. 891
Console
......................................................... 564
Cornering
....................................................... 1156
DoorCourtesy
.................................................. 212-2
Door Flood
........................................................ 73
Driver Information Center
Floorcourtesy
.................................................... 562
Fog
.............................................................. 896
* .............................................
Front Parking/Turn Signal ....................................... 2057NA
Headlight
..................................................... HP6054
Instrument Cluster
License
........................................................... 24
MirrorFlood
....................................................... 74
MirrorReading
.................................................... 168
Radio
* ...................................................
* .............................................................
Rear Courtesy (Convertible) ......................................... 562
Rear Courtesy (except Convertible)
.................................... 906
Sidemarker
........................................................ 24
Tail/Stop/Turn
................................................... 2057
Underhood
..................................................... 212-2
Visor Vanity Mirror
................................................. 74
"These bulbs are not owner.serviceab1e . See your dealer .
. h . .
223 ...

Downloaded from www.Manualslib.com manuals search engine Maintenance Schedule
C L Section A: Scheduled Maintenance Services (Cont.)
Explanation of Scheduled
Maintenance Services
Following are explanations of the services
listed in Schedule I and Schedule
11.
The proper fluids and lubricants to use are
listed in Section D. Make sure whoever
services your vehicle uses these. All parts
should be replaced and all necessary
repairs done before you or anyone else
drives the vehicle.
NOTE: To determine your engine’s
displacement and code, see
“Engine Identification” in the
Index.
ITEM
NO. SERVICE
1 Engine Oil and Filter Change* -
Always use SH or SG Energy
Conserving I1 oils of proper
viscosity. The engine requires a
special oil meeting GM Standard
GM4718M. Oils meeting this
Standard may be identified as
synthetic, and should also be
identified as API Service
SH or
SG. However, not all Synthetic
API Service
SH oils will meet
ITEM
NO. SERVICE
this GM Standard. You should
look for and use only an oil that
meets GM Standard GM4718M.
To determine the preferred
viscosity for your vehicle’s
engine (e.g.,
SAE 5W-30 or SAE
10W-30), see “Engine Oil” in
the Index.
Your vehicle has an Engine Oil
Life Monitor. This monitor will
show you when to change the oil
- usually between 3,000 miles
(5 000 km) and 7,500 miles
( 12 500 km) since your last oil
change. Under severe conditions
the indicator may come on before
3,000 miles
(5 000 km). Never
drive your vehicle more than
7,500 miles (12
500 km) or 12
months without an oil change.
The system won’t detect dust in
the oil..
So if you drive in a dusty
area be sure
to change your oil
every 3,000 miles
(5 000 km) or
sooner if the “Change Oil” light
comes on.
ITEM
NO.
2
3
4
SERVICE
Remember to reset the Oil Life
Monitor when the oil has been
changed. For more information, see “Engine Oil Life Monitor”
in the Index.
Chassis Lubrication
- Lubricate
suspension and steering linkage.
Lubricate the transmission shift
linkage, and parking brake cable guides, underbody contact points
and linkage.
Engine Accessory Drive Belt(s) Inspection
- Inspect the belt(s)
for cracks, fraying, wear and
proper tension. Replace as needed. (Belts can have many
small cracks in individual ribs
without affecting performance.)
Cooling System Service*
-
Drain, flush and refill the system with
new or approved recycled
coolant conforming to GM
Specification 1825M. Keep
coolant at the proper mixture as
specified. See “Coolant” in the
* An Emission Control Service.
. . .236

Downloaded from www.Manualslib.com manuals search engine ABS ........................ 125
Acceleration Slip Regulation
System
..................... 126
Accessory Plug
.................. 76
Acrylic Roof Panel
............... 70
Adding Coolant
................ 189
Add-on Electrical Equipment
..... 21 8
Air Bag System ................. 23
How the System Works
......... 24
Servicing Your Air Bag-
Equipped Corvette
........... 26
Readiness Light
................ 24
Air Cleaner
.................... 182
Air Conditioner Controls
......... 106
Air Control Buttons
............. 106
Air Filter Replacement
........... 183
Alignment and Tire Balance. Wheel
. 208
Aluminum Wheels
.............. 2 15
AMPM Stereo
With Cassette Tape Player
...... 11 3
With Cassette Tape and
Compact Disc Player
........ 11 5
Antenna. Power Mast. Care
....... 11 8
Anti-Lock Brakes
.............. ‘125
System Active Light
............ 86
System Warning Light
.......... 85
To Use
..................... 126
Appearance Care
............... 21 0
Appearance Care and Materials .... 21 7
Appearance Care. Service and
..... 171 Ashtray and
Lighter
.............. 75
ASR System
................... 126
Active Light
.................. 87
Off Light .................... 86
Warning Light
................ 86
Audio Systems
................. 112
Audio Systems. Comfort Controls and
................. 105
Automatic Electronic Climate
Control
..................... 108
Air Control Buttons
........... 108
Automatic Control
............ 109
Defogging and Defrosting
Windows
................. 110
Fan
Control Buttons ........... 108
Manual Bi-Level
............. 109
Manual Cooling
.............. 109
-Manual Heating
.............. 109
Manual Ventilation
............ 109
System Problems
............. 110
Temperature Control Switch .... 108
Temperature Sensors
.......... 108
Automatic Transmission
.......... 5 1
Automatic Transmission Fluid
..... 184
Axle. Limited-Slip Rear
........... 56
Axle. Rear
.................... 188
Babies. Smaller Children
Balance. Wheel Alignment and
(Safety Belts)
.............. 28
and Tire
.................... 208 Battery
....................... 195
Battery Replacement. Passive Keyless
Entry System
................. 41
BBB Auto Line
. Alternative
Dispute Resolution Program.
GM Participation in
......... 253
Before Leaving on a Long Trip
.... 135
Belt. Lap-Shoulder
............... 20
Bi-Level
...................... 107
Blizzard. If You’re Caught in a
.... 138
Block Heater. Engine
............. 50
Brakes Adjustment
.................. 194
Anti-Lock (ABS)
............. 125
Fluid
....................... 193
Master Cylinder
.............. 193
Parking
...................... 56
PedalTravel
................. 194
System Parts. Replacing
........ 194
System Warning Light
.......... 84
Wear Indicators. Disc
.......... 194
Braking (Control of a Vehicle)
..... 124
Braking in Emergencies
.......... 127
“Break.In.
.. New Vehicle ......... 46
Brightness Control
............... 67
Bulb Replacement
.............. 195
Back-up Light
............... 198
Center High-Mounted Stoplight
.............. 200. 201
Cornering Light
.............. 199
Fog Lamp
................... 196
261 ...

Downloaded from www.Manualslib.com manuals search engine Coolant Adding
..................... 189
Engine
..................... 188
Heater. Engine
................ 50
How to Add to the Coolant
Recovery Tank
............. 153
How to Add to the Coolant
High Fill Reservoir
...... 154. 157
Temperature Gage. Engine
....... 89
Cooling
....................... 107
Cooling System
............ 151. 152
Corvette Action Center
.......... 253
Courtesy Lights
................. 68
Courtesy Transportation
.......... 255
Cruise Control
.................. 64
Passing Another Vehicle
While Using
................ 66
To Erase Speed Memory
........ 66
To Get Out of ................. 66
To Reduce Speed
While Using
................ 65
To Resume a Set Speed ......... 65
ToSet
....................... 64
Using on Hills
................ 66
Curves. Driving on
.............. 127
Customer Assistance
To Increase Speed While Using ... 65
for the Hearing or Speech Impaired (TDD)
............ 252
Customer Assistance Information
. . 251
Customer Satisfaction Procedure
... 252 Daytime
Running Lights
........ 68
Deep Standing Water.
Driving through
............... 50
Defects. Safety Reporting to General Motors
.... 254
Reporting to the Canadian
Government
............... 254
Reporting to the United States
Government
............... 254
Defensive Driving
.............. 122
Defogger. Rear Window
......... 11 1
Defogging and Defrosting Windows
................... 107
Delayed Accessory Bus
........... 47
Delco-Base@ AM/FM Stereo
with Cassette Tape and
Compact Disc Player
........ 115
Dimensions. Vehicle
............ 227
Dimmer (Brightness Control)
...... 67
Disc Break Wear Indicators
....... 194
Doing
Your Own Service
Work
....................... 172
Door Ajar Light
.................... 94
Locks
....................... 37
Locks. Power
................. 38
Storage Compartment
.......... 73
Downshifting
................... 55
Driver Information Center ......... 80
Driver Position (Safety Belts) ...... 19 Driving
AtNight
.................... 131
City
........................ 134
Defensive
................... 122
Drunken
.................... 122
Freeway
.................... 134
In the Rain
.................. 132
On Curves
.................. 127
On Snow or Ice
.............. 138
Through Deep Standing Water
.... 50
Winter ...................... 137
Drunken Driving
............... 122
ECM Engine Fuse Block
........ 222
Electrical Equipment. Add-on
..... 218
Emergencies. Braking in
......... 127
Emergencies. Steering in
......... 128
Engine
Cleaning
.................... 215
Coolant
..................... 188
Coolant (Block) Heater
......... 50
Coolant Temperature Gauge ..... 89
Exhaust
...................... 59
Identification
................ 218
Oil
........................ 178
Oil Life Monitor
............... 94
Oil Pressure Gauge
............. 91
Oil Temperature Gauge
......... 92
Overheating
................. 150
Power Switch
................. 49
263 . .

Downloaded from www.Manualslib.com manuals search engine Instrumeqt Cluster ............... 80
Instrument Panel ................ 78
Instrument Panel Fuse Block
...... 220
Topof
...................... 212
Interior Lights
.................. 68
Jump Starting
................. 143
1 Instrument Panel. Cleaning the
Key in the Ignition (Theft)
....... 43 .
Key Release Button .............. 47
Keyless Entry System. Passive
..... 38
Keys
.......................... 36
Lane Change Indicator.
Turn Signal and
............... 61
Lap Belt Cinch Feature
........... 21
Lap-Shoulder Belt (Safety Belts) .... 20
Larger Children (Safety Belts)
...... 31
Latches. Seatback ................ 13
Leaving Your Vehicle ............. 38
Leaving Your Vehicle with the
Engine Running
............... 58
Lighter. Ashtray and .............. 75
Lights
Air Bag Readiness ............. 24
Anti-Lock Brake System
Active
..................... 86
Anti-Lock Brake System Warning
................... 85
ASR Active .................. 87 Lights
ASR
Off ..................... 86
ASR System Warning
.......... 86
Brake System Warning
.......... 84
Bulb Replacement
............ 195
Charging System
.............. 94
Check Gauges
................ 93
Courtesy
..................... 68
Daytime Running
.............. 68
Door Ajar .................... 94
Fog
......................... 68
Front Map
.................... 68
Gauges and Indicators. Warning
................... 82
Interior
...................... 68
Low Coolant
.................. 93
Low Oil
..................... 93
Low Tire Pressure Warning
...... 87
Malfunction Indicator Lamp
..... 91
Parking Brake Indicator
......... 85
One to Four .................. 55
Operation of .................. 66
Passive Keyless Entry
.......... 95
Safety Belt Reminder
........... 19
Security
..................... 96
Service Engine Soon
........... 91
Service LTPWS
............... 89
Service Ride Control
........... 95
Lights On Reminder
.............. 67
Limited-Slip Rear Axle
........... 56
Loading Your Vehicle ........... 202 Locks
Door
........................ 37
Power Door
.................. 38
Loss of Control
................ 130
Low Coolant Light
............... 93
Low Oil Light
.................. 93
Low Tire Pressure Warning
System
...................... 87
Lubricants. Recommended
....... 244
Maintenance Inspections. Periodic
.......... 242
Record
..................... 247
Schedule
.................... 229
Services. Scheduled
........... 231
Malfunction Indicator Lamp
..... 91
Front Seat
.................... 12
Reclining Seatbacks
............ 13
Transmission
................. 53
Transmission Fluid
............ 186
Map Lights. Front
............. 68
Master Cylinder. Brake
.......... 193
Mirrors
Convex Outside
............... 69
Inside Daymight Rearview
...... 69
Power Remote Control
.......... 69
Visor Vanity. Covered
.......... 75
Monitor. Engine
Oil Life .......... 94
Manual
265 .
.