lock OLDSMOBILE ALERO 1999 Service Manual

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2-66 Change Oil Light
The CHANGE OIL light
should come on briefly as a
bulb check when you start
the engine. If the light
doesn't come on, have
it serviced.
If the CHANGE OIL light comes on and stays on after
you start the engine, have the oil changed.
For additional information, see ªEngine Oil, When to
Changeº in the Index. To reset the Oil Life Monitor, see
ªEngine Oil Life Monitorº in the Index.
Security Light
This light will come on
when you turn the key to
ON and will stay on until
the vehicle starts.
If you're driving and the security light comes on and
remains on, your Passlock

system is not working
properly. Your vehicle is not protected by Passlock and
you should see your dealer.
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3-1
Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle.
Be sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Climate Control System with
Air Conditioning
3
-3 Air Conditioning
3
-4 Heating
3
-4 Defogging and Defrosting Windows
3
-5 Rear Window Defogger
3
-6 Ventilation System
3
-7 Audio Systems
3
-7 Setting the Clock
3
-7AM-FM Stereo
3
-9AM-FM Stereo with Cassette Tape Player and
Automatic Tone Control (If Equipped)3
-13 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Automatic Tone
Control (If Equipped)
3
-19 Theft-Deterrent Feature (If Equipped)
3
-21 Understanding Radio Reception
3
-22 Tips About Your Audio System
3
-23 Care of Your Cassette Tape Player
3
-24 Care of Your Compact Discs
3
-24 Care of Your Compact Disc Player
3
-24 Backglass Antenna
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3-7
Audio Systems
Your Delco Electronics audio system has been designed
to operate easily and give years of listening pleasure.
You will get the most enjoyment out of it if you acquaint
yourself with it first. Find out what your Delco
Electronics system can do and how to operate all its
controls, to be sure you're getting the most out of the
advanced engineering that went into it.
Setting the Clock
Press and hold HR until the correct hour appears.
The letter A or P may appear on the display for AM or
PM. Then, press and hold MN until the correct minute
appears. The clock may be set with the ignition on
or off.
AM-FM Stereo
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3-8
Playing the Radio
PWR
-VOL: Press this knob to turn the system on and
off. To increase volume, turn the knob clockwise. Turn
it counterclockwise to decrease volume.
RECALL: Press this button briefly to recall the station
being played or to display the clock. To change what is
normally shown on the display (station or time), press
the RECALL button until you see the display you want,
then hold the RECALL button until the display flashes.
If you press the button when the ignition is off, the clock
will show for a few seconds.
Finding a Station
AM
-FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it.
SEEK: Press the up or down arrow to go to the next
higher or lower station and stay there. The sound will
mute while seeking.SCAN: Press this button and release it to listen to
stations for a few seconds. The radio will go to a station,
stop for a few seconds, then go on to the next station.
Press the button again to stop scanning. The sound will
mute while scanning, and SCAN will appear on the
display. If you press SCAN for more than two seconds,
the radio will change to P SCAN mode. P SCAN will
appear on the display.
PUSHBUTTONS: The five numbered pushbuttons let
you return to your favorite stations. You can set up to
15 stations (five AM, five FM1 and five FM2). Just:
1. Turn the radio on.
2. Press AM-FM to select the band.
3. Tune in the desired station.
4. Press and hold one of the five numbered buttons.
The sound will mute. When it returns, release the
button. Whenever you press that numbered button,
the station you set will return.
5. Repeat the steps for each pushbutton.
P SCAN: Press SCAN for more than two seconds, and
P SCAN will appear on the display. The radio will go to
the first preset station stored on your pushbuttons, stop
for a few seconds, then go on to the next preset station.
Press SCAN again to stop scanning.
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3-10
Playing the Radio
PWR
-VOL: Press this knob to turn the system on and
off. To increase volume, turn the knob clockwise. Turn
it counterclockwise to decrease volume.
RCL: Press this button briefly to recall the station being
played or to display the clock. To change what is
normally shown on the display (station or time), press
the RCL button until you see the display you want, then
hold the RCL button until the display flashes. If you
press the button when the ignition is off, the clock will
show for a few seconds.
Finding a Station
AM
-FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it.
SEEK: Press the up or down arrow to go to the next
higher or lower station and stay there. The sound will
mute while seeking.SCAN: Press this button and release it to listen to
stations for a few seconds. The radio will go to a station,
stop for a few seconds, then go on to the next station.
Press the button again to stop scanning. The sound will
mute while scanning, and SCAN will appear on the
display. If you press SCAN for more than two seconds,
the radio will change to P SCAN mode. P SCAN will
appear on the display.
PUSHBUTTONS: The five numbered pushbuttons let
you return to your favorite stations. You can set up to
15 stations (five AM, five FM1 and five FM2). Just:
1. Turn the radio on.
2. Press AM-FM to select the band.
3. Tune in the desired station.
4. Press TONE to select the equalization that best suits
the type of station selected.
5. Press and hold one of the five numbered buttons.
The sound will mute. When it returns, release the
button. Whenever you press that numbered button,
the station you set will return and the tone that
you selected will also be automatically selected for
that button.
6. Repeat the steps for each pushbutton.
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3-12
While the tape is playing, use the VOL, FADE, BAL,
TREB, BASS, TONE, SEEK and SCAN controls just as
you do for the radio. Other controls may have different
functions when a tape is inserted. The display will show
TP with a box around it and an arrow to show which
side of the tape is playing.
Your tape bias is set automatically. When a metal or
chrome tape is inserted, HI
-BIAS appears on the
display. If you want to insert a tape when the ignition is
off, first press EJECT or RCL.
If E and a number appear on the radio display, the tape
won't play because of an error.

E10: The tape is tight and the player can't turn the
tape hubs. Remove the tape. Hold the tape with the
open end down and try to turn the right hub
counterclockwise with a pencil. Turn the tape over
and repeat. If the hubs do not turn easily, your tape
may be damaged and should not be used in the
player. Try a new tape to make sure your player is
working properly.

E11: The tape is broken. Try a new tape.
If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer. If your radio
displays an error number, write it down and provide it to
your dealer when reporting the problem.REV (1): Press this button to reverse the tape rapidly.
Press it again to return to playing speed. The radio will
play the last selected station while the tape reverses. You
may select stations during REV operation by using TUNE.
FWD (2): Press this button to advance quickly to
another part of the tape. Press the button again to return
to playing speed. The radio will play the last selected
station while the tape advances. You may select stations
during FWD operation by using TUNE.
PROG (3): Press this button to play the other side of
the tape.

(4): Press this button to reduce background
noise. Note that the double
-D symbol will appear on
the display.
Dolby Noise Reduction is manufactured under a license
from Dolby Laboratories Licensing Corporation. Dolby
and the double
-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
TONE: Press this button to select a tone while playing a
cassette. The tone that you set will be activated each
time you play a cassette tape.
SEEK: Press the up or down arrow to search for the
next or previous selection on the tape. Your tape must
have at least three seconds of silence between each
selection for SEEK to work.
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3-14
Playing the Radio
PWR
-VOL: Press this knob to turn the system on and
off. To increase volume, turn the knob clockwise. Turn
it counterclockwise to decrease volume.
RCL: Press this button briefly to recall the station
being played or to display the clock. To change what is
normally shown on the display (station or time), press
the RCL button until you see the display you want, then
hold the RCL button until the display flashes. If you
press the button when the ignition is off, the clock will
show for a few seconds.
Finding a Station
AM
-FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it.
SEEK: Press the up or down arrow to go to the next
higher or lower station and stay there. The sound will
mute while seeking.SCAN: Press this button and release it to listen to
stations for a few seconds. The radio will go to a station,
stop for a few seconds, then go on to the next station.
Press the button again to stop scanning. The sound will
mute while scanning, and SCAN will appear on the
display. If you press SCAN for more than two seconds,
the radio will change to P SCAN mode. P SCAN will
appear on the display.
PUSHBUTTONS: The five numbered pushbuttons let
you return to your favorite stations. You can set up to
15 stations (five AM, five FM1 and five FM2). Just:
1. Turn the radio on.
2. Press AM-FM to select the band.
3. Tune in the desired station.
4. Press TONE to select the equalization that best suits
the type of station selected.
5. Press and hold one of the five numbered buttons.
The sound will mute. When it returns, release the
button. Whenever you press that numbered button,
the station you set will return and the tone that you
selected will also be automatically selected for
that button.
6. Repeat the steps for each pushbutton.
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3-16
While the tape is playing, use the VOL, FADE, BAL,
TREB, BASS, TONE, SEEK and SCAN controls just as
you do for the radio. Other controls may have different
functions when a tape is inserted. The display will show
TP with a box around it and an arrow to show which
side of the tape is playing.
Your tape bias is set automatically. When a metal or
chrome tape is inserted, HI
-BIAS appears on the
display. If you want to insert a tape when the ignition is
off, first press EJECT or RCL.
If E and a number appear on the radio display and the
tape won't play because of an error, it could be that:

E10: The tape is tight and the player can't turn the
tape hubs. Remove the tape. Hold the tape with the
open end down and try to turn the right hub
counterclockwise with a pencil. Turn the tape over
and repeat. If the hubs do not turn easily, your tape
may be damaged and should not be used in the
player. Try a new tape to make sure your player is
working properly.

E11: The tape is broken. Try a new tape.If any error occurs repeatedly or if an error can't be
corrected, please contact your dealer. If your radio
displays an error number, write it down and provide it to
your dealer when reporting the problem.
REV (1): Press this button to reverse the tape rapidly.
Press it again to return to playing speed. The radio will
play the last selected station while the tape reverses.
You may select stations during REV operation by
using TUNE.
FWD (2): Press this button to advance quickly to
another part of the tape. Press the button again to return
to playing speed. The radio will play the last selected
station while the tape advances. You may select stations
during FWD operation by using TUNE.
PROG (3): Press this button to play the other side of
the tape.

(4): Press this button to reduce background
noise. Note that the double
-D symbol will appear on
the display.
Dolby Noise Reduction is manufactured under a license
from Dolby Laboratories Licensing Corporation. Dolby
and the double
-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.
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3-19
SCAN: Press this button to listen to each selection for a
few seconds. The disc will go to the next selection, stop
for a few seconds, then go on to the next selection. Press
this button again to stop scanning. The sound will mute
while scanning, SCAN will appear on the display.
RCL: Press this button to see which track is playing.
Press it again within five seconds to see how long it has
been playing. To change what is normally shown on the
display (track or elapsed time), press the button until
you see the display you want, then hold the button until
the display flashes. While elapsed time is showing,
EL TM will appear on the display.
AM
-FM: Press this button to play the radio when a disc
is in the player.
TAPE
-CD: Press this button to change to the tape or
disc function when the radio is on and either a tape or CD
is inserted. Press AM
-FM to return to the radio while a
CD or tape is playing. Press TAPE
-CD to switch between
the tape and compact disc if both are loaded. The inactive
tape or CD will remain safely inside the radio for future
listening. The display will show TP and CD.EJECT: Press this button to remove the compact disc or
cassette tape. The icon with the box around it on the
display will eject and the radio will play. EJECT may be
activated with either the ignition or radio off. Cassettes
and compact discs may be loaded with the radio and
ignition off if this button is pressed first.
Theft-Deterrent Feature (If Equipped)
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 is removed. If your battery loses power for any
reason, you must unlock the radio with the secret code
before it will operate.
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3-20
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.
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.
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