2001 CHEVROLET CORVETTE service

4-25
Highway Hypnosis
Is there actually such a condition as ªhighway
hypnosisº? Or is it just plain falling asleep at the
wheel? Call it highway hypnosis, lack of awareness,
or whatever.
There is something about an easy stretch of road with
the same scenery, along with the hum of the tires on the
road, the drone of the engine, and the rush of the wind
against the vehicle that can make you sleepy. Don't let it
happen to you! If it does, your vehicle can leave the
road in less than a second, and you could crash and
be injured.
What can you do about highway hypnosis? First, be
aware that it can happen.
Then here are some tips:

Make sure your vehicle is well ventilated, with a
comfortably cool interior.

Keep your eyes moving. Scan the road ahead and to
the sides. Check your rearview mirrors and your
instruments frequently.

If you get sleepy, pull off the road into a rest, service
or parking area and take a nap, get some exercise, or
both. For safety, treat drowsiness on the highway as
an emergency.
Hill and Mountain Roads
Driving on steep hills or mountains is different from
driving in flat or rolling terrain.

5-7
9. The other end of the negative (-) cable doesn't go
to the dead battery. It goes to a heavy, unpainted
metal part on the engine of the vehicle with the
dead battery. Attach the cable at least 18 inches
(46 cm) away from the dead battery, but not near
engine parts that move. The electrical connection is
just as good there, but the chance of sparks getting
back to the battery is much less.
10. Now start the vehicle with the good battery and run
the engine for a while.11. Try to start the vehicle with the dead battery.
If it won't start after a few tries, it probably
needs service.
Jumper Cable Removal
A. Heavy, Unpainted Metal Engine Part
B. Good Battery
C. Dead Battery

5-8
To disconnect the jumper cables from both vehicles, do
the following:
1. Disconnect the black negative (
-) cable from the
heavy, unpainted metal engine part on the vehicle
that had the dead battery.
2. Disconnect the black negative (
-) cable from
the negative terminal on the vehicle with the
good battery.
3. Disconnect the red positive (+) cable from the
vehicle with the good battery.
4. Disconnect the red positive (+) cable from the
other vehicle.
Towing Your Vehicle
Consult your dealer or a professional towing service if
you need to have your vehicle towed. See ªRoadside
Assistanceº and ªRecreational Vehicle Towingº in
the Index.
Engine Overheating
You will find an engine coolant temperature gage on the
instrument cluster and a COOLANT OVER TEMP
message on the Driver Information Center (DIC).
Overheated Engine Protection
Operating Mode
Should an overheated engine condition exist and the
messages COOLANT OVER TEMP and REDUCED
ENGINE POWER are displayed, along with the Check
Engine light, an overheat protection mode which
alternates firing groups of cylinders helps prevent
engine damage. In this mode, you will notice a loss in
power and engine performance. This operating mode
allows your vehicle to be driven to a safe place in an
emergency; you may drive up to 50 miles (80 km).
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and
reset the oil life monitor. See ªEngine Oilº in
the Index.

5-10
NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs would not be
covered by your warranty. See ªOverheated
Engine Protection Operating Modeº in the Index.
If No Steam Is Coming From Your Engine
If you get an engine overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:

Climb a long hill on a hot day.

Stop after high
-speed driving.

Idle for long periods in traffic.If you get the overheat warning with no sign of steam,
try this for a minute or so:
1. If your air conditioner is on, turn it off.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.
3. If you're in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (
) or
THIRD (3) for automatic transmissions.
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about 10 minutes.
If the warning doesn't come back on, you can
drive normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there's still no sign of steam, idle the engine for
three minutes while you're parked. If you still have the
warning, turn off the engine and get everyone out of the
vehicle until it cools down. Also, see ªOverheated
Engine Protection Operating Modeº listed previously in
this section.
You may decide not to lift the hood but to get service
help right away.

5-13
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL
(silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
-COOL
is not
covered by your new vehicle warranty.
If there seems to be no leak, with the engine on, check to
see if the electric engine cooling fans are running. If the
engine is overheating, both fans should be running.
If they aren't, your vehicle needs service.
How to Add Coolant to the Coolant
Surge Tank
If you haven't found a problem yet, but the coolant level
isn't at the FULL COLD mark on the coolant surge
tank, add a 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant at the coolant surge tank, but be
sure the cooling system, including the coolant surge tank
pressure cap, is cool before you do it. See ªEngine
Coolantº in the Index for more information.

5-18
If a Tire Goes Flat
Your Corvette has no spare tire, no tire changing
equipment and no place to store a tire.
It's unusual for a tire to ªblow outº while you're driving,
especially if you maintain your tires properly. See
ªTiresº in the Index. If air goes out of a tire, it's much
more likely to leak out slowly.
If your vehicle has Extended Mobility Tires (EMT), you
won't need to stop on the side of the road to change a
flat tire. EMT tires can operate effectively with no air
pressure. If you drive on a deflated EMT for 50 miles
(80 km) or less and at speeds of 55 mph (90 km/h) or
less, there is a good chance that the tire can be repaired.
Contact the nearest authorized Chevrolet or Goodyear
EMT servicing facility, as soon as possible, to have the
flat tire inspected and repaired or replaced. For more
information, see ªExtended Mobility Tiresº in the Index.CAUTION:
Special tools and procedures are required to
service an Extended Mobility Tire (EMT). If
these special tools and procedures aren't used,
you or others could be injured and your vehicle
could be damaged. Always be sure the proper
tools and procedures, as described in the service
manual, are used.
To order a service manual, see ªService and Owner
Publicationsº in the Index.

6-
6-1
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6
-2 Service
6
-3 Fuel
6
-5 Filling Your Tank
6
-9 Checking Things Under the Hood
6
-12 Engine Oil
6
-17 Engine Air Cleaner/Filter
6
-19 Automatic Transmission Fluid
6
-19 Manual Transmission Fluid
6
-21 Hydraulic Clutch
6
-22 Rear Axle
6
-23 Engine Coolant
6
-26 Surge Tank Pressure Cap
6
-26 Power Steering Fluid
6
-27 Windshield Washer Fluid
6
-29 Brakes
6
-32 Battery
6
-33 Bulb Replacement
6
-38 Windshield Wiper Blade Replacement6
-40 Tires
6
-53 Lifting Your Corvette
6
-57 Appearance Care
6
-57 Cleaning the Inside of Your Vehicle
6
-60 Cleaning a Removable Roof Panel
6
-60 Cleaning the Outside of Your Vehicle
6
-62 Cleaning Your Convertible Top
6
-62 Cleaning Aluminum Wheels
6
-63 Cleaning Tires
6
-63 Finish Damage
6
-63 Underbody Maintenance
6
-65 GM Vehicle Care/Appearance Materials
6
-66 Vehicle Identification Number (VIN)
6
-66 Service Parts Identification Label
6
-67 Electrical System
6
-74 Replacement Bulbs
6
-75 Capacities and Specifications
6
-76 Normal Maintenance Replacement Parts

6-2
Service
Your dealer knows your vehicle best and wants you to
be happy with it. We hope you'll go to your dealer for
all your service needs. You'll get genuine GM parts and
GM
-trained and supported service people.
We hope you'll want to keep your GM vehicle all GM.
Genuine GM parts have one of these marks:
Doing Your Own Service Work
If you want to do some of your own service work, you'll
want to use the proper service manual. It tells you much
more about how to service your vehicle than this manual
can. To order the proper service manual, see ªService
and Owner Publicationsº in the Index.
Your vehicle has an air bag system. Before attempting to
do your own service work, see ªServicing Your Air
Bag
-Equipped Vehicleº in the Index.
You should keep a record with all parts receipts and list
the mileage and the date of any service work you
perform. See ªMaintenance Recordº in the Index.