Unlocking Secured Radio After A Power Loss

When battery power is reapplied to a secured radio assembly, the radio assembly won't turn on and "LOC" appears on the display. Enter the secret customer or factory backup code as follows (do not pause more than 15 seconds between steps):

1. Turn ignition to "ACCESSORY" or "RUN" position.
2. Press "SET" and "000" appears on display.
3. Press "SCAN" and hold until first digit of secret code appears.
4. Press "SEEK < or >" to make second and third digits of code appear.
5. Press the lower knob (tune knob) and "000" appears on display.
6. Press "SCAN" and hold until fourth digit of secret code appears.
7. Press "SEEK < or >" to make fifth and sixth digits of code appear.
8. Press the lower knob (tune knob). If the unlock sequence was successful, the display will show the "Time of Day (CLOCK)," indicating the radio is operational and in the SECURED mode. If "LOC" shows, the numbers did not match and the unit is still locked. Repeat steps 2 through 8.

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