Security Codes?

[wylie]

Hello great form you have going here.
I've got a 99 GP GT bought it used from the dealer about three years ago,its my second GP really love the car.
Question is: I don't know the security code and I have to disconnect the battery,what kind of problems am I going to run into if I don't know the codes?
Can I reset them myself or is this something I have to get the dealer to do ? (rather not go to the dealer)
I live in the sticks so if I do this at home am I going to be stuck, will I still be able to drive after?

[kustomkid54]

If you want to way to reset radio, here it is;

** Theftlock Bypass

1. Press and hold presets 2 & 3 for about 10 seconds until the first 3 digits of the display code are displayed.

2. Write the numbers down.

3. Press the AM/FM button, write down the next 3 numbers.

4. Call 1-800-537-5140, when asked, enter 620529, press the # button and enter the 6 digit code from the radio, you will get an unlock code, write it down.

5. Go back to the car, press the HR button and set the first 2 numbers, then press minute button and set the next two last numbers, press AM/FM button, SEC should be displayed, turn on radio.

To remove customers code, repeat step 5. you should see --- on radio face, the code is now out of the radio.



EDIT: Updated with new dealer code. FWIW, the old code was 202107

Originally Posted by wylie

Hello great form you have going here.
I've got a 99 GP GT bought it used from the dealer about three years ago,its my second GP really love the car.
Question is: I don't know the security code and I have to disconnect the battery,what kind of problems am I going to run into if I don't know the codes?
Can I reset them myself or is this something I have to get the dealer to do ? (rather not go to the dealer)
I live in the sticks so if I do this at home am I going to be stuck, will I still be able to drive after?

[wylie]

Hey Thanx kustomkid54:
Thats a great help, so I'm assuming everything else will reset its self after re connecting the battery its just the radio that becomes disabled?

[BIG-L]

so I'm assuming everything else will reset its self after re connecting the battery its just the radio that becomes disabled?

Yes.

If the last owner never set the security code,you wount have anything to worry about.


~Larry~

[kustomkid54]

Larry,
GM is trying to tell me that you can't remove codes.
Do they know anything about their car's?

Originally Posted by BIG-L

Yes.

If the last owner never set the security code,you wount have anything to worry about.


~Larry~

[scrillator]

I have a 2001 Grand Prix GTP. I'm locked out of my radio.
I've tried this trick and I can only seem to get the first 3 numbers. WHen I hit the AM/FM button, it does nothing. Any suggestions??