Just got my car fixed and my radio locked up - 1999 Pontiac Grand Prix

This is a problem with the Theft-Loc system. I believe you will have to take it to the dealer to have the radio unlocked. I found this procedure on the web, but I don't know if it will work. Good luck.

1. Turn the ignition ON (The radio should display "LOC")

2. Hold down the Radio Presets 2 and 3 buttons for six seconds

3. The radio display changes from LOC to a three-digit number. Write this number down. You now have fifteen seconds to complete the next step.

4. Press the AM/FM button

5. The radio display changes to another three-digit number. Write this number to the right of the first one.

6. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05

7. Call 1-800-537-5140

8. Press 1 then # (pound). You'll hear "Invalid Code, try again"

9. Press 139010 or 106010 or 206010 or 202107 then # (pound). You will be asked to enter your four or six digit code followed by *

10. Enter the number from STEP 6 then *

11. Listen to the four-digit number and write it down. It will be repeated twice

12. Turn the ignition ON (The radio displays LOC)

13. Use the MN and HR buttons to enter the code from STEP 11

14. Press the AM/FM button. The radio display changes to "SEC". Your radio is now "un-locked" and usable.

Thanks for choosing FixYa and welcome to the site. If you have had the battery disconnected or it has lost power, you probably need a radio code. You can call the dealership and give them your VIN number to get the code. Some dealerships require you to go to them to get the code. It is possible it is in the owner manual but if not, call the dealership.