Obtaining Radio Display Code (Scrambled Backup Code)

IMPORTANT
^ In order to display this code, the radio should be in "LOC" mode or have "SEC" displayed before proceeding.
1. Press and hold pushbuttons "2" and "3" for about 6 seconds until the first three digits of the display code are displayed.
2. Write the numbers down.
3. Press "AM-FM" button. The second three digit' are displayed.
4. Write the numbers down.

After approximately 5 seconds, or if another button is pressed, the display returns to "LOC". The display code must be unscrambled 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.