Obtaining the 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. Pause no more than 15 seconds between steps:
1. Press and hold push button numbers 2 and 3 for about 6 seconds until the first 3 digits of the display code appear.
2. Write the numbers down.
3. Press AM/FM to display the second set of 3 digits.
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 which 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.