4 Wheel Drive/SUVs: Radio Lock on Chevy Blazer, chevy blazer, chevrolet dealer

Question
I recently had to change the battery of my 2001 chevy blazer. everything works fine now after the change except for the radio.
the lcd just reads LOC
you can put in and eject cds
you can set the clock but once you finish it just goes back to saying LOC
nothing will play and no other buttons work
its killing me i need some help

Answer
Hi Sean and thanks for the question.  The LOC means that the system is locked which happens when the power fails.  Call your local Chevrolet dealer and they should give you the correct code and how to enter it.  Let me know if you have further problems.  Best of luck.  Bud