Unlocking the Theft Deterrent Feature After A Lockup

Enter the code as follows pausing no more than 15 seconds between steps:

1. Ensure LOC appears when the ignition is turned to the ON position.
2. Press MIN and 000 will appear on the display.
3. Press MIN again in order to ensure the last 2 digits agree with the code.
4. Press HR in order to ensure the first 1 or 2 digits agree with the code.
5. Press AM-FM after the secret code that was written down has been confirmed. The display will show SEC indicating the radio is now operable and secure.

If the wrong code was entered 8 times, INOP will appear on the display. Turn the ignition to the ON position and wait an hour before trying again. The customer will have 3 more chances to enter the correct code before INOP appears.

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.