Unlock radio the 1800 # doesnt work

Has anyone successfully unlocked the radio in a 97 grand prix? I never knew the unlick code and I dont wanna pay 65 bucks at the dealership. I yried the 1800 # listed in one of the forums it just keot saying invalid account number and too many tries. Its been locked since I purchased it and the previous owner forgot the code. Any help?

Is LOC displayed on your radio?

Yes it is displayed...i followed the steps but im having trouble with the 800 number. press 1 then # but it wont let me put the code in because it says invalid account amd hangs upI

were you able to get the 4 or 6 digit code from the radio? Key on, press and hold presets 2 and 3 for approx 6seconds, this will give you a set of #'s. then press the am/fm button for the next set. if the numbers don't change, them they are the same as the first set of #'s. post these 4 or 6 numbers, I may be able to get your unlock code for you.

502 507

Your unlock code is 0335. Key on, press HR and hold till 000 shows, then press HR again till 03 is shown, then press the MIN button till 35 is shown for 0335. Press AM/FM to enter code, display should change to --- then to clock. Good luck!

Just one problem....if he has tried this more than three times, he can't just install the code....

He might need to put a jumper box on the vehicle, if his battery is low.....


You apply ebrake(keeps DRL's off), install box, and turn key just to "on"....now the vehicle has to be left on for an hour, I think(been awhile since I did one this way)......

I think the LOC goes out.....then install the code as posted....then recycle the key....

Correct, techII. You are allowed 3 tries, then the radio goe into INOP mode. The radio must then be left powered for up to an hour before three more tries are allowed. If the radio shows LOC, he can install the code, If it shoes InOP, then above proceedure must be followed.

It worked omg!!!!! Im listening to the radio now. This site is now my favorite car help site.,i live yall! Thank u so much. U just saved me 65 and purchasing a new radio! Whoop whoop!

The code I have been using on the GM 800 number has not worked for a while either. My guess is because of so many dealers closing. If anyone knows any new (working) dealer codes, I am all ears.

It worked omg!!!!! Im listening to the radio now. This site is now my favorite car help site.,i live yall! Thank u so much. U just saved me 65 and purchasing a new radio! Whoop whoop!


Glad to "hear" it!

radio unlock code

Just ask once your dealer to replace that radio.

I cant seem to find a good dealer code for the 1-800 number. Can anyone help me? The numbers i got from the car are 682 696.

Do you still need the unlock code?

Yes please.

try 0124, look back in this post on how to enter the code.