Unlocking Radio After Power Loss

When battery power is reapplied to a (SEC) secured radio, the radio will not turn on. LOC will appear on the display.

Enter the user code as follows. Do not pause more than 15 seconds between steps.
1. Turn ignition lock to "ACCESSORY" or "RUN" position.
2. Press the SET button. "000" appears on the display.
3. Press the SEEK button until the second and third digits of your code appear.
4. Press the SCAN button until the first digit of the code appears.
5. Press the AM-FM button. "000" appears on the display.
6. Press the SEEK button until the fifth and sixth digits of your code appear.
7. Press the SCAN button until the fourth digit appears.
8. Press the AM-FM button. If the unlock sequence was successful (the numbers matched either the user selected code or the factory backup code), the display will show "SEC", indicating the unit is operational. The radio is now in the "secure" mode. If the display shows LOC, the numbers did not match. The unlock sequence was not successful.

Important: If eight unsuccessful attempts are made to unlock the radio, the display will return to the LOC display. When you press the SET button, INOP will be displayed. This means the radio must be left powered up for 1 hour with battery and ignition applied before any more attempts to unlock the radio can be made. Anytime INOP is displayed, three more attempts will be allowed after the 1-hour waiting period with battery and ignition applied.

In those cases where the user's code is lost or forgotten, contact your local dealer or an authorized Delco radio service center.