Radio, Stereo, and Compact Disc: Service and Repair

These radios are equipped with THEFTLOCK theft deterrent which, when enabled, causes the unit to be inoperative should it be removed from the vehicle.

The theft deterrent is enabled (SECURE mode) by entering a user-selected code into the unit. This code must be re-keyed into the unit following any interruption of battery voltage to resume normal operations. If the correct code is not entered, the unit will become inoperable and remain in the "LOCKED" mode. Any theft deterrent input mode may be exited by cycling either the radio power or ignition.

Activating Theft Lock
1. Write down any number from 000 to 1999 and keep it in a safe place.
2. Turn the ignition to the "ACC" or the "RUN" position.
3. Turn the radio "OFF."
4. Press the 1 and 4 push-buttons together. Hold them down until "-" shows on the display.
You are now ready to enter your code. Do not wait more than 15 seconds between each step.
5. Press "MIN." "000" will appear on the display.
6. Press the "MIN" push-button again to make the last two digits agree with your code.
7. Press the "HR" push-button to make the first one or two digits agree with your code.
8. Press the AM/FM push-button after you have confirmed that the code matches the one you wrote down. "REP" appears in the display, indicating that you need to repeat steps 5-7.
9. Press AM/FM. This time the display will show "SEC." "SEC" means your radio is secure.

NOTE: With the ignition off, the THEFT LOCK indicator will flash.

To Unlock Theft Lock After A Power Loss
Enter the user code as follows. Do not wait more than 15 seconds between steps.
1. Press MIN. "000" will appear on the display.
2. Press the "MIN" push-button again to make the last two digits agree with your code.
3. Press the "HR" push-button to make the first one or two digits agree with your code.
4. Press the AM/FM push-button after you have confirmed that the code matches the one you wrote down. "SEC" will appear in the display indicating that the radio is now operable.

If the security is activated and the radio is disconnected from battery power, the radio will display "LOC". The radio will not turn on until the correct unlocking code is entered. If the customer code is lost or unavailable, contact your local GM dealership or an authorized Delco radio service center for additional assistance.