1999 CHEVROLET CORVETTE Owners Manual

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2-21
Front Air Dam
Your vehicle is equipped with a front air dam which has
minimal ground clearance for aerodynamics. For this
reason, the air dam has a spring
- loaded hinge provided
and it will retract with road contact.
In normal operation, the air dam will occasionally
contact some road surfaces (speed bumps, driveway
ramps, etc.). This can be heard inside the vehicle as a
scraping noise. This is normal and does not indicate
a problem.
Use care when approaching bumps or objects on road
surfaces and avoid them when possible.
Ignition Positions
CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. A child or
others could be injured or even killed. They could
operate power windows or other controls or even
make the vehicle move. Don't leave the keys in
the vehicle with children.
With the key in the ignition
switch, you can turn the
switch to four positions.
OFF: The only position from which you can remove the
key. Removing the key locks your steering wheel,
ignition and automatic transmission.
If you have an automatic transmission, the ignition
switch can't be turned to OFF unless the shift lever is
in PARK (P).

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2-22
ACC: This is an on position in which you can operate
your electrical power accessories. With the key in this
position, the automatic transmission and steering
column will unlock.
ON: This is the position to which the switch returns
after you start the engine and release the switch. The
switch stays in ON when the engine is running. But even
when the engine is not running, you can use ON to
operate your electrical power accessories and to display
some instrument panel messages and telltales.
START: This position starts the engine. When the
engine starts, release the key. The ignition switch will
return to ON for normal driving.
When the engine is not running, ACC and ON allow you
to operate your electrical accessories, such as the radio.
A warning tone will sound if you open the driver's door
when the ignition is in OFF or ACC and the key is in
the ignition.
CAUTION:
Removing the key from the ignition switch will
lock the steering column and result in a loss of
ability to steer the vehicle. This could cause a
collision. If you need to turn the engine off while
the vehicle is moving, turn the key to ACC.
NOTICE:
If your key seems stuck in OFF and you can't
turn it, be sure you are using the correct key; if
so, is it all the way in? Turn the key only with
your hand. Using a tool to force it could break
the key or the ignition switch. If none of this
works, then your vehicle needs service.

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2-23 Retained Accessory Power (RAP)
With RAP, your power windows and the audio system
will continue to work for up to 15 minutes after the
ignition key is turned to OFF and neither door is opened.
If a door is opened, the power windows and audio
system will shut off.
Starting Your Engine
This vehicle has a computer system that monitors engine
speed, throttle and pedal position, and records the
current status.
Automatic Transmission
Move your shift lever to PARK (P) or NEUTRAL (N).
Your engine won't start in any other position
-- that's a
safety feature. To restart when you're already moving,
use NEUTRAL (N) only.
NOTICE:
Don't try to shift to PARK (P) if your Chevrolet
is moving. If you do, you could damage the
transmission. Shift to PARK (P) only when your
vehicle is stopped.
Manual Transmission
The gear selector should be in NEUTRAL and the parking
brake engaged. Hold the clutch pedal to the floor and start
the engine. Your vehicle won't start if the clutch pedal is
not all the way down
-- that's a safety feature.
1. Without pushing the accelerator pedal, turn the
ignition key to START. When the engine starts, let
go of the key. The idle speed will go down as your
engine gets warm.
NOTICE:
Holding your key in START for longer than
15 seconds at a time will cause your battery to
be drained much sooner. And the excessive heat
can damage your starter motor. Wait about
15 seconds between each try to help avoid
draining your battery or damaging your starter.
2. If it doesn't start within 10 seconds, push the
accelerator pedal all the way to the floor, while you
hold the ignition key in START. When the engine
starts, let go of the key and let up on the accelerator
pedal. Wait about 15 seconds between each try to help
avoid draining your battery or damaging your starter.

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2-24
When starting your engine in very cold weather (below
0
F or
-18
C), do this:
1. With your foot off the accelerator pedal, turn the
ignition key to START and hold it there. When the
engine starts, let go of the key. Use the accelerator
pedal to maintain engine speed, if you have to, until
your engine has run for a while.
2. If your engine still won't start (or starts but then
stops), it could be flooded with too much gasoline.
Try pushing your accelerator pedal all the way to the
floor and holding it there as you hold the key in
START for about three seconds. If the vehicle starts
briefly but then stops again, do the same thing, but
this time keep the pedal down for five or six seconds.
This clears the extra gasoline from the engine.NOTICE:
Your engine is designed to work with the
electronics in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer. If you don't,
your engine might not perform properly.
If you ever have to have your vehicle towed, see
the part of this manual that tells how to do it
without damaging your vehicle. See ªTowing
Your Vehicleº in the Index.
Starter Interlock Feature
For your convenience and to avoid damage to your
starter, your vehicle is equipped with a starter interlock
feature. This feature will not allow you to crank the
engine when the vehicle is already running.

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2-25 Racing or Other Competitive Driving
See your Warranty Book before using your vehicle for
racing or other competitive driving.
NOTICE:
If you use your vehicle for racing or other
competitive driving, your engine may use more
oil than it would with normal use. Low oil levels
can damage the engine. Be sure to check the oil
level often during racing or other competitive
driving and keep the level at or near the upper
mark on the engine oil dipstick. You may need
to add oil. See ªAdding Oilº under ªEngineº in
the Index.
Engine Coolant Heater (If Equipped)
The engine coolant heater is located on the driver's side
of the engine under the manifold.
In very cold weather, 0
F (
-18
C) or colder, the engine
coolant heater can help. You'll get easier starting and
better fuel economy during engine warm
-up. Usually,
the coolant heater should be plugged in a minimum of
four hours prior to starting your vehicle.

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2-26
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
The electrical cord is attached to the generator
bracket assembly, between the generator and the
windshield washer fluid tank.With headlamps closed,
route the cord in the opening between the left hand
headlamp door and the fender panel. Do not pinch
the cord when closing the hood.
3. Plug it into a normal, grounded 110
-volt AC outlet.
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the wrong
kind of extension cord could overheat and cause
a fire. You could be seriously injured. Plug the
cord into a properly grounded three
-prong
11 0
-volt AC outlet. If the cord won't reach, use a
heavy
-duty three-prong extension cord rated for
at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you don't, it could
be damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying to list everything here, we ask that you contact
your dealer in the area where you'll be parking your
vehicle. The dealer can give you the best advice for that
particular area.

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Automatic Transmission Operation
There are several different positions for your shift lever.
PARK (P): This position locks your rear wheels. It's the
best position to use when you start your engine because
your vehicle can't move easily.
CAUTION:
It is dangerous to get out of your vehicle if the
shift lever is not fully in PARK (P) with the
parking brake firmly set. Your vehicle can roll.
Don't leave your vehicle when the engine is
running unless you have to. If you have left the
engine running, the vehicle can move suddenly.
You or others could be injured. To be sure your
vehicle won't move, even when you're on fairly
level ground, always set your parking brake and
move the shift lever to PARK (P).
See ªShifting Into PARK (P)º in the Index.

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Be sure the shift lever is fully in PARK (P) before
starting the engine. Your vehicle has a
Brake
-Transmission Shift Interlock (BTSI). You have to
fully apply your regular brakes before you can shift
from PARK (P) when the ignition key is in ON. If you
cannot shift out of PARK (P), ease pressure on the shift
lever
-- push the shift lever all the way into PARK (P)
and release the shift lever button as you maintain brake
application. Then press the shift lever button and move
the shift lever into the gear you wish. If you do not
apply the brake after 15 seconds once the ignition is
turned on, you will receive a PRESS BRAKE BEFORE
SHIFT message in the Driver Information Center (DIC).
See ªShifting Out of PARK (P)º in the Index.
REVERSE (R): Use this gear to back up.
NOTICE:
Shifting to REVERSE (R) while your vehicle
is moving forward could damage your
transmission. Shift to REVERSE (R) only after
your vehicle is stopped.
To rock your vehicle back and forth to get out of snow,
ice or sand without damaging your transmission, see
ªStuck: In Sand, Mud, Ice or Snowº in the Index.
NEUTRAL (N): In this position, your engine doesn't
connect with the wheels. To restart when you're
already moving, use NEUTRAL (N) only. Also, use
NEUTRAL (N) when your vehicle is being towed.
CAUTION:
Shifting out of PARK (P) or NEUTRAL (N) while
your engine is ªracingº (running at high speed) is
dangerous. Unless your foot is firmly on the
brake pedal, your vehicle could move very
rapidly. You could lose control and hit people or
objects. Don't shift out of PARK (P) or
NEUTRAL (N) while your engine is racing.