1999 Oldsmobile Alero stock LOC

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=24122
Printed Date: July 23, 2025 at 9:27 AM

Topic: 1999 Oldsmobile Alero stock LOC

Posted By: rsoli
Subject: 1999 Oldsmobile Alero stock LOC
Date Posted: January 07, 2004 at 3:37 PM

Does anyone know how to get the LOC of the stock stereo of a 1999 or 2000 Alero. The stereo does not work at all and it just says LOC on the screen. I think it happened when the battery was disconnected when getting fixed.

Thanks,

Ryan

Replies:

Posted By: sparkie
Date Posted: January 07, 2004 at 9:52 PM

The radio's theftlock system has been activated. Someone has entered a code into the radio and the radio has lost power at some time. If you don't know the code don't try entering one. You only get 7 trys before the radio shuts down. It must then be powered with the key on for one hour before it gives you another 3 tries. Take the car to any GM dealer service department and they can unlock it for you. Ask them to deactivcate the theftlock system so it won't happen again. If you want you will still be able to enter your own code afterwards. Refer to the owner's manual for instructions if you have one.

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sparky

Posted By: bberman1
Date Posted: January 07, 2004 at 10:31 PM

Try this post https://www.the12volt.com/installbay/forum_posts.asp?tid=10827&KW=theftlock
If that doesn’t work go to this site https://carstereohelp.net/gotquestionsQ25.htm