The Radio with Single CD (MP3) and the Radio with Six-Disc CD (MP3) have a theft deterrent feature.

The theft deterrent feature is designed to discourage theft of your vehicle's radio. It works by using a secret code to disable all radio functions whenever battery power is interrupted.

The theft deterrent feature for the radio may be used or ignored. If ignored, the radio plays normally and the radio is not protected by the feature. If the theft deterrent feature is activated, the radio will not operate if stolen.

When the theft deterrent feature is activated. LOCK will appear on the radio display to indicate a locked condition anytime battery power has been removed. If the battery loses power for any reason, you must unlock the radio with the secret code before it will operate.

The instructions which follow explain how to enter your secret code to activate the theft deterrent feature. Read through all 10 steps before starting the procedure.

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 four-digit number from 0000 to 9999 and keep it in a safe place separate from the vehicle.
2. Turn the ignition to RUN.
3. Turn the radio off.
4. Press the 5 and 6 pushbuttons at the same time for five seconds. -- -- -- -- will appear on the display. Next you will use the secret code number which you have written down.
5. Press the SEEK/SCAN down or SEEK left arrow to make the first digit agree with your code.
6. Press the SEEK/SCAN up or SEEK right arrow to make the second digit agree with your code.
7. Press the TUNE down or AUTO EQ left arrow to make the third digit agree with your code.
8. Press the TUNE up or AUTO EQ right arrow to make the fourth digit agree with your code.
9. Press AM-FM after you have confirmed that the code matches the secret code you have written down. The display will prompt you to repeat Steps 5 through 8 to confirm your secret code.
10. Press AM-FM again. SEC or SECURITY ON will appear on the display to indicate that the radio is secure.

If SEC or SECURITY ON does not appear on the display, but displays Err1, Err2, or LOCK, the theft deterrent feature is already set to another code. See "Disabling the Theft-Deterrent Feature" later in this section.

Enter your secret code as follows; pause no more than 15 seconds between steps:

1. Turn the ignition on. -- -- -- -- will appear on the display.
2. Preform Steps 5 through 8 from the "Activating the Theft-Deterrent Feature" earlier to enter your secret code.
3. Press AM-FM after you have confirmed that the code matches the secret code you have written down. SEC or SECURITY ON will appear on the display, indicating the radio is now operable and secure.

If you enter the wrong code, the display will momentarily show an error message and all radio functions will continue to be disabled. If -- -- -- -- appears on the display, you can try to enter your secret code again.

If you enter the wrong code three times, LOCK will appear on the display. Contact your Saturn retailer. Your Saturn retailer is authorized to obtain the factory programmed code that is assigned to the radio to reset the system.

If you forget your code, if the theft deterrent feature is accidentally activated with an unknown code, or if the radio is in the locked mode, contact your Saturn retailer.

Enter your secret code as follows; pause no more than 15 seconds between steps:

Preform Steps 1 through 9 from the "Activating the Theft-Deterrent Feature" earlier to enter your secret code. OFF will appear on the display indicating the theft deterrent feature is off.

If OFF or SECURITY OFF does not appear on the display, the wrong code was entered. If you enter the wrong code, the display will momentarily show an error message and all radio functions will continue to be disabled. If -- -- -- -- appears on the display, you can try to enter your secret code again.

If you enter the wrong code three times, LOCK will appear on the display. Contact your Saturn retailer. Your Saturn retailer is authorized to obtain the factory programmed code that is assigned to the radio to reset the system.

If you forget your code, if the theft deterrent feature is accidentally activated with an unknown code, or if the radio is in the locked mode, contact your Saturn retailer.