Obtaining the Radio Display Code (Scrambled Backup Code)

IMPORTANT: The radio should be in the LOG mode or have SEC displayed before proceeding, in order to display this code.

1. Simultaneously press and hold the 2 and 3 pushbuttons for about 6 seconds until the first 3 digits of the display code appear.
2. Write the numbers down.
3. Press the AM-FM button. The second 3 digits will display.
4. Write the numbers down. The display returns to LOG after approximately 5 seconds, or if another button is pressed. The display code must be unscrambled in order to get the factory backup code that unlocks the radio. 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.