1999 CHEVROLET CORVETTE buttons

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3-25
Whenever a CD magazine with discs is loaded in the
changer, the CD symbol will appear on the radio display.
If the CD changer is checking the magazine for CDs, the
CD symbol will flash on the display until the changer is
ready to play. When a CD begins playing, a disc and
track number will be displayed. The disc numbers are
listed on the front of the magazine.
If your vehicle is equipped with the AM
-FM Stereo with
Cassette Tape Player and Automatic Tone Control, the
following buttons are used for the trunk
-mounted
CD changer except the EJECT button for ejecting the
CD magazine.
PREV (1): Press this button or the SEEK left arrow to
go to the previous track if the current selection has been
playing for less than eight seconds. If the PREV button
is pressed and the current selection has been playing for
more than eight seconds, it will go to the beginning of
the current selection. If you hold or press this button
more than once, the player will continue moving back
through the disc. The sound will mute while seeking.
PROG (2): Press this button to select a disc. The disc
number and track number will be displayed.
NEXT (3): Press this button or the SEEK right arrow to
go to the next track. If you hold the button or press it
more than once, the player will continue moving forward
through the disc. The sound will mute while seeking.REV (4): Press and hold this button to reverse quickly
through a track selection. Release it to resume playing.
FWD (6): Press and hold this button to advance quickly
through a track selection. Release it to resume playing.
SEEK: Press the right arrow to seek to the next
selection on the CD. Press the left arrow to search for
the previous selection on the CD. The sound will mute
while seeking.
P.SCAN: Press this button to hear the tracks in random,
rather than sequential, order. RANDOM will appear on
the display. Press P.SCAN again to turn off random play.
TAPE AUX: Press this button if you have a disc loaded
in the changer and the radio is turned on, to play a
compact disc. Press AM
-FM to return to the radio when
a compact disc is playing. Press TAPE AUX to switch
between the tape and compact disc if both are loaded.
To eject the disc holder in the trunk
-mounted CD
changer, slide the CD changer door all the way open and
the disc holder will automatically eject.
If your vehicle is equipped with the AM
-FM Stereo with
CD Player and Automatic Tone Control, the following
buttons are used for the trunk
-mounted CD changer
except the EJECT button for ejecting the CD magazine.

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3-27 Theft-Deterrent Feature
THEFTLOCK
is designed to discourage theft of your
radio. It works by using a secret code to disable all radio
functions whenever battery power is removed.
The THEFTLOCK feature for the radio may be used or
ignored. If ignored, the system plays normally and the
radio is not protected by the feature. If THEFTLOCK is
activated, your radio will not operate if stolen.
When THEFTLOCK is activated, the radio will display
LOC to indicate a locked condition anytime battery
power has been interrupted. If your battery loses power
for any reason, you must unlock the radio with the secret
code before it will operate.
Activating the Theft
-Deterrent Feature
The instructions which follow explain how to enter your
secret code to activate the THEFTLOCK system. It is
recommended that you read through all nine steps
before starting the procedure.
NOTE: If you allow more than 15 seconds to elapse
between any steps, the radio automatically reverts to
time and you must start the procedure over at Step 4.1. Write down any three or four
-digit number from
000 to 1999 and keep it in a safe place separate from
the vehicle.
2. Turn the ignition to ACC or ON.
3. Turn the radio off.
4. Press the 1 and 4 buttons together. Hold them down
until
--- shows on the display. Next you will use the
secret code number which you have written down.
5. Press MN and 000 will appear on the display.
6. Press MN again to make the last two digits agree
with your code.
7. Press HR to make the first one or two digits agree
with your code.
8. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show REP to let you know that you
need to repeat Steps 5 through 7 to confirm your
secret code.
9. Press AM
-FM and this time the display will show
SEC to let you know that your radio is secure. The
LED indicator by the volume control will begin
flashing when the ignition is turned off.

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3-28
Unlocking the Theft-Deterrent Feature After a
Power Loss
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition on. LOC will appear on the display.
2. Press MN and 000 will appear on the display.
3. Press MN again to make the last two digits agree
with your code.
4. Press HR to make the first one or two digits agree
with your code.
5. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show SEC, indicating the radio is
now operable and secure.
If you enter the wrong code eight times, INOP will
appear on the display. You will have to wait an hour
with the ignition on before you can try again. When you
try again, you will only have three chances to enter the
correct code before INOP appears.
If you lose or forget your code, contact your dealer.
Disabling the Theft
-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:1. Turn the ignition to ACC or ON.
2. Turn the radio off.
3. Press the 1 and 4 buttons together. Hold them down
until SEC shows on the display.
4. Press MN and 000 will appear on the display.
5. Press MN again to make the last two digits agree
with your code.
6. Press HR to make the first one or two digits agree
with your code.
7. Press AM
-FM after you have confirmed that the
code matches the secret code you have written down.
The display will show
---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio won't turn on and LOC will
appear on the display.
To unlock a secured radio, see ªUnlocking the
Theft
-Deterrent Feature After a Power Lossº earlier in
this section.

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9-5
Electrical Equipment, Adding 2-24, 3-28, 6-63 . . . . . . . . . .
Electrical System 6-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronic Dual Climate Control System 3-4 . . . . . . . . . . . . . .
EMT 6-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 6-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessory Belt 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Coolant 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Coolant 6-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 5-13, 5-16, 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-82 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-16, 2-38, 4-30 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification 6-65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Gage 2-85 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Engine Protection Operating Mode 5-8 . . . . . .
Overheating 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Curves 6-77 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-39 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-75 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Air Cleaner/Filter 6-16 . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Kind to Use 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Level Check 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life 2-97 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Life Monitor, How to Reset 6-15 . . . . . . . . . . . . . . . . . . . . .
Scheduled Maintenance 7-6 . . . . . . . . . . . . . . . . . . . . . . . . . Used 6
-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Oil Life Monitor 6-15, 7-5 . . . . . . . . . . . . . . . . . . . . .
Engine Oil Scheduled Maintenance 7-6 . . . . . . . . . . . . . . . . . .
English/Metric Button 2-77 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ethanol 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-16, 2-38, 4-30 . . . . . . . . . . . . . . . . . . . . . .
Exit and Entry Lighting 2-53 . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down Windows 2-41 . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Mobility Tires 6-42 . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-44, 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Protection 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Control Buttons 3-2, 3-7 . . . . . . . . . . . . . . . . . . . . . . . . . .
Feature, Theft-Deterrent 2-17 . . . . . . . . . . . . . . . . . . . . . . . . .
Fiberglass Springs 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fifth Gear, Manual Transmission 2-31 . . . . . . . . . . . . . . . . . . .
Filling
A Portable Fuel Container 6
-9 . . . . . . . . . . . . . . . . . . . . . . .
Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air Cleaner 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish
Care 6
-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage 6-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear
Automatic Transmission 2
-29 . . . . . . . . . . . . . . . . . . . . . . .
Manual Transmission 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fixed Mast Antenna 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, What to Do 5-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Mats 2-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Capacities 6-74 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .