How to Enjoy FM Stereo

Select stations within range. You will obtain the best FM fidelity from stations within a 16.1-64.5 km (10-40 mile) range. Beyond the 16.1-64.5 km (10-40 mile) range, the following disturbances may begin to appear due to the range limitations of FM signals:

Tall structures may interfere with radio reception. Tall structures may cause "shadow" or cancellation of FM signals. The condition is similar to the effects of airplanes on television reception. FM shadows sound like a pop or a momentary hiss.

The solution for tall structure interference is to reduce one of the following settings to a lower level:

Stations may occasionally interfere with each other. Although Delco® receivers use the most advanced available circuits, in rare instances another station will interfere with the tuned station. The interference only happens under the following circumstances:

The solution for station interference is to select another station or switch to the cassette tape player.

How to Enjoy AM

AM does not have the flutter characteristics of FM. FM flutter characteristics are caused by the following obstructions:

AM is subject to interference from the following sources:

In order to reduce noise, perform one of the following steps:

ETR AM/FM Stereo (UM7)

Upper Knob

The upper knob turns the radio assembly on and off. Rotate the knob in order to control the volume. Use the control ring behind the knob in order to control the balance. Turn the ring clockwise in order to move the speaker balance to the right. Turn the ring counterclockwise in order to move the speaker balance to the left. Press the knob in order to recall the frequency when the radio is playing.

Lower Knob

Turn the lower knob in order to select radio stations manually. When the radio is on, press the lower knob in order to choose one of the following bands:

Use the control ring behind the lower knob in order to fade the sound between the front and the rear speakers.

Bass and Treble Controls

Slide the TREB lever upward in order to increase the treble. Slide the TREB lever downward in order to decrease the treble. Slide the BASS lever upward in order to increase the bass. Slide the BASS lever downward in order to decrease the bass. If a station has one of the following qualities, slide the TREB lever downward in order to reduce the noise:

Push Buttons

Perform the following steps in order to preset the four AM and the four FM stations:

1. Tune the radio to the desired station.
2. Press the SET button.
3. Press a station button within 5 seconds of pressing the SET button.

The station is now preset to the selected station button.

Perform the following steps in order to preset 3 additional stations on each band:

1. Tune the radio to the desired station.
2. Press the SET button.
3. Press two adjacent station buttons at the same time within 5 seconds of pressing the SET button.

The stations are now preset to the selected station buttons. The radio will tune to a preset station when you press the push button pair. Reset the preset stations if one of the following events interrupts electrical power:

Clock

Perform the following procedure in order to set the clock display:

1. Turn the ignition switch to one of the following positions:

•

ACCESSORY

•

RUN

2. Turn off the radio.
3. Push the SET button.
4. Push and hold the left SEEK button until the correct hour appears.
5. Push and hold the right SEEK button until the correct minute appears.

Seek and Scan Feature

The 2000 series radio assemblies have the following features for electronic station tuning up and down the band:

Push the SEEK button in order to advance the tuner to the next station with a strong signal. The right SEEK button advances the tuner upward. The left SEEK button advances the tuner downward.

The SCAN feature is a two-button sequence. Use the following procedure in order to scan to the next higher station:

1. Press and hold the right SEEK button.
2. Press the left SEEK button.

Perform the following procedure in order to scan to the next lower station:

1. Press and hold the left SEEK button.
2. Press the right SEEK button.

The radio will then perform the following actions:

1. Move to the next strong station
2. Pause for a few seconds
3. Move to the next strong station

When the radio reaches the end of the band, the radio will perform the following actions:

The radio will scan until you terminate the SCAN mode. Perform one of the following steps in order to terminate the SCAN mode:

ETR AM/FM Stereo/Cassette Tape Player (UM6)

Upper Knob

The upper knob turns the radio on and off. Rotate the knob in order to control the volume. Use the control ring behind the knob in order to control the balance. Turn the ring clockwise in order to move the speaker balance to the right. Turn the ring counterclockwise in order to move the speaker balance to the left. Press the knob in order to recall the frequency when the radio is playing. When a cassette is playing, press the upper knob in order to select the other side of the tape.

Lower Knob

Turn the lower knob in order to select radio stations manually. When the radio is on, press the knob in order to choose one of the following bands:

Use the control ring behind the lower knob in order to fade the sound between the following components:

Bass and Treble Controls

Slide the TREB lever upward in order to increase the treble. Slide the TREB lever downward in order to decrease the treble. Slide the BASS lever upward in order to increase the bass. Slide the BASS lever downward in order to decrease the bass. If a station has the following qualities, slide the TREB lever downward in order to reduce the noise:

Push Buttons

Perform the following steps in order to preset seven AM stations, seven FM1 stations, and seven FM2 stations:

1. Tune the radio to the desired station.
2. Press the SET button.
3. Press a station button within 5 seconds of pressing the SET button.

The station is now preset to the selected station button.

Perform the following steps in order to preset three additional stations on each band:

1. Tune the radio to the desired station.
2. Press the SET button
3. Press two adjacent station buttons at the same time within 5 seconds of pressing the SET button.

The selected station is now preset to the station buttons. The radio will tune to the preset station when you press the push button or the push button pair. Reset the stations if one of the following events interrupts electrical power:

Clock

Perform the following procedure in order to set the clock display:

1. Turn the ignition lock cylinder to one of the following positions:

•

ACCESSORY

•

RUN

2. Turn the radio off.
3. Push the SET button.
4. Push and hold the left SEEK button until the correct hour appears.
5. Push and hold the right SEEK button until the correct minute appears.

Seek and Scan Feature

The 2000 series radio assemblies have the following features for electronic station tuning up and down the band:

Push the SEEK button in order to advance the tuner to the next station with a strong signal. The right SEEK button advances the tuner upward. The left SEEK button advances the tuner downward.

The SCAN feature is a two-button sequence. Perform the following procedure in order to scan to the next higher station:

1. Press and hold the right SEEK button.
2. Press the left SEEK button.

Perform the following procedure in order to scan to the next lower station:

1. Press and hold the left SEEK button.
2. Press the right SEEK button.

The radio will then perform the following actions:

1. Move to the next strong station
2. Pause for a few seconds
3. Move to the next strong station

When the radio reaches the end of the band, the radio will perform the following actions:

The radio will scan until you terminate the SCAN mode. Perform one of the following steps in order to terminate the SCAN mode:

Cassette Tape Player

GM engineers designed the tape player in order to play tapes that are 30 minutes long on each side. Tapes longer than 45 minutes are so thin that they may not work well in the tape player.

Perform the following steps in order to play a tape:

1. Ensure that the ignition lock cylinder is in one of the following positions:

•

ACCESSORY

•

RUN

2. Insert the cassette squarely through the door.
3. Insert the exposed tape side of the cassette through the door first.

After inserting the tape, if you hear one of the following sounds, the tape may not be in the player squarely:

Perform the following steps in order to reinsert the tape:

1. Press the EJECT button.
2. Remove the tape from the tape player.
3. Insert the cassette squarely through the door.
4. Insert the exposed tape side of the cassette through the door first.

The tape is fully inserted if the following events occur:

In order to advance the tape, press the FWD button. In order to reverse the tape, press the REV button. In order to resume tape play from fast forward, press the FWD button again. In order to resume tape play from reverse, press the REV button again.

When the tape reaches the end of a side, the tape player will perform the following actions automatically:

Push the eject button in order to perform one of the following functions:

Turn off the cassette player using one of the following methods:

If you turn off the cassette player, one of the following actions will occur:

The purpose of the automatic eject feature is to protect the following components:

Tape Direction Indicators

The indicator arrows indicate the direction that the tape is playing. The upward arrow indicates that the top of the tape is playing. The downward arrow indicates that the bottom of the tape is playing.

Reversing Sides

Press the upper knob in order to play the other side of the tape.

When the tape reaches the end of a side, the tape player will perform the following actions automatically:

Tape Eject Button

Press the EJECT button in order to perform the following functions:

Press the EJECT button for 5 seconds or more in order to clear the CLN display.

ETR AM/FM Stereo/Cassette Tape Player (UL0)

Volume Knob

The upper knob turns the radio assembly on and off. Rotate the knob in order to control the volume.

Speed-Compensated Volume (SCV)

Rotate the ring behind the volume knob in order to compensate automatically for an increase in road noise levels at high speeds. The SCV feature increases the volume slowly as the speed of the vehicle increases. When the system is working properly, the driver will not notice the subtle changes in the volume. You may turn off the SCV system.

AM/FM

Press the AM/FM button in order to choose one of the following bands:

The lighted display will show the selection.

Tune Knob

Push the TUNE knob in order to release the tune knob. Rotate the TUNE knob in order to choose the desired radio station. Push the knob back in order to store the knob after tuning.

Recall

Press the RECALL button in order to recall one of the following functions:

You may also press the RECALL button in order to display the time when the ignition is off.

Auto Tone

Press AUTO TONE in order to choose preset treble and bass equalization settings for the following listening preferences:

Each time you press AUTO TONE another setting will appear on the display. When MAN appears on the display, control of the tone will return to the treble and bass knobs.

Seek

Press the SEEK button to the right in order to tune the radio to the next higher frequency that has a strong signal. Press the SEEK button to the left in order to turn the radio to the next lower frequency that has a strong signal.

PSCAN

Press PSCAN in order to hear each of the preset stations for a few seconds. Press PSCAN again in order to stop at a chosen station.

Clock

Use the following procedure in order to set the clock display:

1. Press and hold the HR button until the correct hour appears.
2. Press and hold the MIN button until the correct minute appears.

There will be a two second delay before the clock goes into the time-set mode.

Push Buttons

Perform the following steps in order to preset the six AM stations, the six FM1 stations, and the six FM2 stations:

1. Tune the radio to the desired station.
2. Choose a preset AUTO TONE.
3. Press and hold one of the six push buttons for 5 seconds.

The station will fade out and return when set. The preset station will return whenever you press the button. Repeat the above steps for each button.

Speaker Adjustment

Use the following procedure in order to adjust the balance:

1. Push the BAL knob in order to release the BAL knob.
2. Turn the knob in order to move the sound between the right and the left speakers.
3. Push the knob back in order to store the knob when you are not adjusting the knob.

Use the following procedure in order to adjust the fade:

Bass and Treble Controls

Push the TREB knob in order to release the treble knob. Rotate the TREB knob to the right in order to increase the treble. Rotate the TREB knob to the left in order to decrease the treble. Push the knob back in order to store the knob when you are not adjusting the knob.

Push the BASS knob in order to release the bass knob. Rotate the BASS knob to the right in order to increase the bass. Rotate the BASS knob to the left in order to decrease the bass.

If the signal has one of the following disturbances, then rotate the TREB knob to the left in order to reduce the noise:

Cassette Tape Player

GM engineers designed the tape player in order to play tapes that are 30 minutes long on each side. Tapes longer than 45 minutes are so thin that they may not work well in the tape player.

Perform the following steps in order to play a tape:

1. Ensure that the ignition lock cylinder is in one of the following positions:

•

ACCESSORY

•

RUN

2. Ensure that the receiver/tape player is on.
3. Insert the cassette squarely through the door.
4. Insert the exposed tape side of the cassette through the door first.
5. After inserting the tape, if you hear nothing or only garbled sound, the tape may not be in the player squarely. Perform the following steps in order to reinsert the tape:

5.1.	Press the EJECT button.

5.2.	Remove the tape from the tape player.

5.3.	Insert the cassette squarely through the door.

5.4.	Insert the exposed tape side of the cassette through the door first.

6. The tape is fully inserted if the following events occur:

•	The radio turns off.

•	The tape begins playing.

Use the following buttons in order to adjust the sound of the tape:

The arrows show which side of the tape is playing.

In order to advance the tape, press the FWD button. In order to resume playing the tape from fast forward mode, press the FWD button again. The radio will play during fast forward mode.

In order to reverse the tape, press the REV button. In order to resume playing the tape from reverse mode, press the REV button again. The radio will play during reverse mode.

Press one of the following buttons in order to play the next selection, instead of waiting until the current selection finishes:

If the tape has less than 3 seconds of silence between each selection, the NEXT function will not work properly. The radio will not play during next mode.

Press one of the following buttons in order to play the previous selection:

If the tape has less than 3 seconds of silence between each selection, the PREV function will not work properly. The radio will not play during previous mode.

Press the PROG knob in order to switch from one side of the tape to the other.

Press the Dolby® button in order to reduce tape noise. The Dolby® symbol will appear in the display.

Use one of the procedures in the following table in order to stop the tape:

Action	Effect
Turn OFF one of the following components: The ignition switch The power to the radio	•  The cassette will stay in the player.     •  The cassette will resume play at the point of stopping.
Press AM/FM. Switch to radio. Press TAPE AUX in order to return to tape.	•  The cassette will stop playing     •  The radio will start playing.
Press EJECT. EJECT will work with the ignition ON or OFF. Switch to radio.	•  The tape will eject.     •  The radio will start playing.

CD Adapter Kits

It is possible to use a CD adapter kit with your cassette tape player after activating the bypass feature on your tape player. The following procedure will activate the bypass procedure:

1. Turn the ignition switch to the RUN or the ACCY position.
2. Turn the radio off.
3. Press and hold the TAPE AUX button for 5 seconds. The cassette tape symbol on the display will flash for 2 seconds indicating that the bypass feature is active.
4. Insert the adapter into the cassette tape player.

This bypass feature will remain active until the EJECT button is pressed.

ETR AM/FM Stereo/Compact Disc (UN0)

Volume Knob

The volume knob turns the radio assembly on and off. Rotate the knob in order to control volume.

Speed-Compensated Volume (SCV)

Rotate the ring behind the volume knob in order to compensate automatically for the increase in road noise levels caused by high speed. The SCV feature causes the volume to increase slowly as speed increases. When the system is working properly, the driver will not notice the subtle changes in volume. You may turn off the SCV feature.

AM/FM

Press the AM/FM button in order to choose one of the following bands:

The lighted display will show the selection.

Tune Knob

Push the TUNE knob in order to release the tune knob. Rotate the TUNE knob in order to choose desired radio stations. Push the knob back in order to store the knob after tuning.

Recall

Press the RECALL button in order to recall one of the following functions:

You may also press the RECALL button in order to display the time when the ignition is off. Press and hold the RECALL button for 5 seconds or more in order to operate a remote compact disc cartridge in the tape player.

Auto Tone

Press AUTO TONE in order to choose preset treble and bass equalization for the following settings:

Each time you press AUTO TONE another setting will appear on the display. When MAN appears on the display, control of the tone will return to the treble and bass knobs.

Seek

Press the SEEK button to the right in order to tune the radio to the next higher frequency that has a strong signal. Press the SEEK button to the left in order to turn the radio to the next lower frequency that has a strong signal.

PSCAN

Press PSCAN in order to hear each of the preset stations for a few seconds. Press PSCAN again in order to stop at a chosen station.

Clock

Use the following procedure in order to set the clock display:

1. Press and hold the HR button until the correct hour appears.
2. Press and hold the MIN button until the correct minute appears.

There will be a 2 second delay before the clock goes into the time-set mode.

Preset Buttons

Use the following steps in order to preset the six AM stations, the six FM1 stations, and the six FM2 stations:

1. Tune the radio to the desired station.
2. Choose a preset AUTO TONE.
3. Press and hold one of the six push buttons for 5 seconds.

The station will fade out and return when set. The preset station will return whenever you press that button. Repeat the above steps for each button.

Speaker Adjustment

Use the following procedure in order to adjust the balance:

1. Push the BAL knob in order to release the BAL knob.
2. Turn the knob in order to move the sound between the right and the left speakers.
3. Push the knob back in order to store the knob when you are not adjusting the knob.

Use the following procedure in order to adjust the fade:

Bass and Treble Controls

Push the TREB knob in order to release the treble knob. Rotate the TREB knob to the right in order to increase the treble. Rotate the TREB knob to the left in order to decrease the treble. Push the knob back in order to store the knob when you are not adjusting the knob.

Push the BASS knob in order to release the bass knob. Rotate the BASS knob to the right in order to increase the bass. Rotate the BASS knob to the left in order to decrease the bass.

If a station is weak and noisy, then rotate the TREB knob to the left in order to reduce the noise.

Compact Disc Player

Insert the disc into the slot while the radio assembly is on. Ensure that the label side is up. The following events will occur:

If the disc ejects and the ERR message displays, verify that the following conditions do not exist:

Recall

Press the RECALL button in order to see the current track number. Press the RECALL button again within 5 seconds in order to see the time elapsed in the current track. The track number will appear when you insert the disc.

Previous

Press the PREV button in order to play a track again. The disc will return to the previous track under the following conditions:

If you press the PREV button within 8 seconds from the start of a track the disc player will perform the following actions:

If you press the PREV button after 8 seconds from the start of a track the disc player will perform the following actions:

The disc will return further if you perform one of the following actions:

Random

Press the RDM button in order to play the tracks in a random order. Press RDM in order to stop the random feature. RANDOM appears in the display during random play.

Next

Press one of the following buttons in order to hear the next track before finishing the current selection:

The disc will advance further if you perform one of the following actions:

Forward

Perform the following actions in order to advance quickly within a track:

Release the FWD button in order to resume playing the CD.

Reverse

Perform the following actions in order to return quickly to a favorite passage on the disc:

Dolby®

If the vehicle is equipped with a remote cassette tape play, press the Dolby® button in order to reduce the noise on a tape.

Stopping the Compact Disc Player

Perform one of the procedures in the following table in order to stop the compact disc player:

Action	Effect
Turn OFF one of the following components: The ignition switch The power to the radio	•  The disc will stay in the player.     •  The cassette will resume play at the point of stopping.
Press AM/FM. Switch to radio. Press CD AUX in order to switch back to CD.	•  The disc will stop playing     •  The radio will start playing.
Press eject. Eject will work with the ignition ON or OFF. Switch to radio.	•  The disc will eject.     •  The radio will start playing.

ETR AM/FM Stereo/Cassette or Compact Disc Player (UM7, UN6, UT6, UP3)

The following radio assemblies are included in this description:

The instructions below explain how to use the radio for units equipped with one of the following features:

Refer to the appropriate instructions for these features.

Power

Push the POWER button in order to turn the system on or off.

Volume Knob

Rotate the knob clockwise in order to increase the volume. Rotate the knob counter clockwise in order to decrease the volume.

Recall

Press the RECALL button in order to recall one of the following functions:

You may also press the RECALL button in order to display the time when the ignition is off. Press and hold the RECALL button for 5 seconds or more in order to operate a remote compact disc cartridge in the tape player.

AM/FM

Press the AM/FM button in order to choose one of the following bands:

The lighted display will show the selection.

Tune Knob

Push the TUNE knob in order to release the tune knob. Rotate the TUNE knob in order to choose the desired radio station. Push the knob back in order to store the knob after tuning.

Seek

Press the SEEK button to the right in order to tune the radio to the next higher frequency that has a strong signal. Press the SEEK button to the left in order to turn the radio to the next lower frequency that has a strong signal.

Preset Buttons

Use the following steps in order to preset the six AM stations, the six FM1 stations, and the six FM2 stations:

1. Tune the radio to the desired station.
2. Press and hold one of the 6 push buttons for 5 seconds.

The station will fade out and return when set. SET will appear on the display. The preset station will return whenever you press that button.

Speaker Adjustment

Use the following procedure in order to adjust the balance:

1. Push the BAL knob in order to release the BAL knob.
2. Turn the knob in order to move the sound between the right and the left speakers.
3. Push the knob back in order to store the knob when you are not adjusting the knob.

Use the following procedure in order to adjust the fade:

Bass and Treble Controls

Slide the TREB lever to the right in order to increase the treble. Slide the TREB lever to the left in order to decrease the treble. The middle position is a detente.

Slide the BASS lever to the right in order to increase the bass. Slide the BASS lever to the left in order to decrease the bass. The middle position is a detente.

If a station is weak and noisy, slide the TREB lever to the left in order to reduce the noise.

Graphic Equalizer

Use the graphic equalizer in order to adjust the seven separate frequencies of sound to your taste. Put the levers in the middle positions in order to begin adjusting the frequencies. Move a lever up in order to emphasize a frequency. Move a lever down in order to deemphasize a frequency.

Playing a Cassette Tape

Insert the cassette into the player with the visible tape to the right. If the radio is on, the tape will begin playing. If you hear one of the following sounds, the tape may not be in the player squarely:

Press EJECT in order to remove the tape. Insert the cassette again.

The letter E and a number on the display indicates an error. The following list defines the error codes and their meanings:

E10: The tape is tight.

E11: The tape is broken.

E12: There is a communication problem.

If the tape is too tight, the player cannot turn the tape hubs. If the E10 code appears, perform the following steps in order to loosen the tape:

1. Remove the tape.
2. Hold the tape. Ensure that the open end points down.
3. Use a pencil in order to try to turn the right hub counterclockwise.
4. Turn the tape over.
5. Use a pencil in order to try to turn the right hub counterclockwise.

If the hubs do not turn easily, the tape may be damaged. Do not use a damaged tape in the tape player. Use a new tape in order to ensure that the tape player is working properly.

While the tape is playing, use the following controls in order to adjust the sound:

These controls do not change from radio mode to tape mode. Other controls will change when a tape inserts into the player. The display will show the following indicators when a cassette is in the player:

The tape bias sets automatically.

PREV

Press the PREV button in order to search for the previous selection on the tape. The player requires at least 3 seconds of silence between selections in order for the previous command to function.

NEXT

Press the NEXT button in order to search for the next selection on the tape. The player requires at least 4 seconds of silence between selections in order for the next command to function.

You may also press the SEEK arrows in order to find the following selections on the tape:

REV

Press the REV button in order to reverse the tape rapidly. The radio will play while the tape reverses. Press the REV button again in order to return the player to playing speed.

FWD

Press the FWD button in order to advance quickly to another part of the tape. The radio will play while the tape advances. Press the FWD button again to return the player to playing speed.

PROG

Press the PROG button in order to change the side of the tape that is playing.

Dolby®

Dolby® B Noise Reduction is manufactured under license from Dolby Laboratories Licensing Corporation. The Dolby name and the Dolby symbol are trademarks of Dolby Laboratories Licensing Corporation.

Press the Dolby button in order to reduce the background noise.

AM/FM

Press the AM/FM button in order to play the radio when a tape is in the player.

TAPE/PLAY

Press the TAPE/PLAY button in order to change to the tape function when the radio is on. The cassette symbol with an arrow will appear on the display when the tape is active.

EJECT

Press the EJECT button in order to remove the tape. The radio will play.

CLN

The CLN message may appear on the display. If the CLN message appears on the display, clean the cassette player. The player will still play tapes. Clean the player in order to prevent damage to the following components:

Refer to Care of Your Cassette Tape Player.

After cleaning the player, press and hold the EJECT button for 5 seconds in order to reset the CLN indicator. Three dashes (- - -) will appear on the display in order to show that the CLN indicator is reset.

CD Adapter Kits

It is possible to use a CD adapter kit with your cassette tape player after activating the bypass feature on the tape player. Perform the following procedure to activate the bypass feature:

1. Turn the ignition switch to the RUN or the ACCY position.
2. Turn the radio off.
3. Press and hold the TAPE/PLAY button for 5 seconds. The tape symbol on the display will flash for 2 seconds to indicate the bypass feature is active.
4. Insert the adapter.

The bypass override will remain active until the EJECT button is pushed.

Compact Disc Player

Insert the disc into the slot while the radio assembly is on. Ensure that the label side is up. The following events will occur:

If the disc ejects and the ERR message displays, verify that the following conditions do not exist:

Recall

Press the RECALL button in order to see the current track number. Press the RECALL button again within 5 seconds in order to see the time elapsed in the current track. Press the RECALL button again in order to see the time. The display shows the time by default.

Previous

Press the PREV button in order to play a track again.

If you press the PREV button within 8 seconds from the start of a track the disc player will perform the following actions:

If you press the PREV button after 8 seconds from the start of a track the disc player will perform the following actions:

The disc will return to the previous tracks if you perform one of the following actions:

Next

Press the NEXT button in order to hear the next track before finishing the current selection:

The disc will advance further if you perform one of the following actions:

Forward

Perform the following actions in order to advance quickly within a track:

Release the FWD button in order to resume playing the CD.

Reverse

Perform the following actions in order to return quickly to a favorite passage on the disc:

Random

Press the RDM button in order to hear the tracks in a random order.

AM/FM

Press the AM/FM button in order to play the radio when a disc is in the player.

CD/PLAY

Press the CD/PLAY button in order to change to the disc function when the radio is on. The following indicators will appear on the display when the disc is active:

Eject

Press the EJECT button in order to remove the disc. The radio will play.

Setting Radio Anti-Theft Feature

You may either use or ignore the Theftlock® security feature. If you ignore Theftlock®, then the radio assembly will play normally. If you use Theftlock®, then the radio assembly will not turn on if the radio assembly is stolen.

Use the procedure below in order to enter a security code into the system. If the vehicle loses battery power for any reason, you must enter the security code again before the system will turn on. Use the following procedure in order to prepare to enter a security code:

1. Write down any number between 000 and 1999.
2. Put the number in a safe place.
3. Turn the ignition switch to one of the following two positions:

•

ACCESSORY

•

RUN

4. Turn the audio system off.
5. Press and hold the following buttons until three dashes (- - -) appear on the display:

•

1

•

4

You are now ready to enter the security code. Do not pause more than 15 seconds between steps. Use the following procedure in order to enter the security code:

1. Press the MIN button in order to cause 000 to appear on the display.
2. Press and hold the MIN button again until the last two digits of the desired code number appear on the display.
3. Press the HR button until the first one or two digits of the desired code number appear.
4. Press AM/FM in order to cause REP to appear on the display.
5. Press the MIN button in order to cause 000 to appear on the display.
6. Press and hold the MIN button again until the last two digits of the desired code number appear on the display.
7. Press the HR button until the first one or two digits of the desired code number appear on the display.
8. Repeat AM/FM in order to cause SEC to appear on the display. SEC means that the audio system is secured.

The indicator light will flash when the ignition is off. If three dashes (- - -) appear on the display, then the verification steps failed. Repeat the above procedure.

Unlocking the Audio Assembly

Perform the following steps if you wish to disable Theftlock®. Do not pause more than 15 seconds between steps. Use the following steps:

1. Turn on the ignition.
2. Ensure that the audio system is off. If the audio system is off, the time will appear on the display.
3. Press the MIN button in order to cause 000 to appear on the display.
4. Press and hold the MIN button again until the last two digits of the desired code number appear on the display.
5. Press the HR button until the first one or two digits of the desired code number appear on the display.
6. Press the AM/FM button. If three dashes (- - -) appear on the display, then Theftlock® is off. If SEC appears on the display, then Theftlock® is on.

Unlocking the Audio Assembly after a Power Loss

The audio system power disrupts while Theftlock® is ON, then the following events will occur:

Use the following procedure in order to unlock Theftlock®:

1. Turn the ignition switch to one of the following positions:

•

ACC

•

RUN

2. Ensure that the audio system is off.
3. Press the MIN button in order to cause 000 to appear on the display.
4. Press and hold the MIN button again until the last two digits of the desired code number appear on the display.
5. Press the HR button until the first one or two digits of the desired code number appear on the display.
6. Press the AM/FM button. If SEC appears on the display, then the unit will function. If LOC appears on the display, then the unit is still locked.

Determining the Factory Backup Unlocking Code for a Secured Radio Assembly

The owner of the vehicle will have to take the vehicle to the vehicle dealer or a Delco® radio repair center in order to unlock Theftlock® if the following events occurred:

All radios that use Theftlock® contain a factory back-up code used in order to unlock a unit if the owner's security code is not available. Refer to the appropriate Dealer Management Bulletin for the complete procedure in order to access the factory back-up code.