Theft Lock Radio ?
Thread Starter
Instructor
Joined: Jun 2005
Posts: 219
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Theft Lock Radio ?
First off I changed my battery and my radio went to LOC
To retrieve code I pressed and held the preset 2 and 3 buttons for 6 seconds and got the first 3 digit code.
When I press and release the AM/FM button the number stays the same then goes back to LoC.
Am I doing some thing wrong? or would the second second 3 digit code be the same as the first?
To retrieve code I pressed and held the preset 2 and 3 buttons for 6 seconds and got the first 3 digit code.
When I press and release the AM/FM button the number stays the same then goes back to LoC.
Am I doing some thing wrong? or would the second second 3 digit code be the same as the first?
Le Mans Master
Joined: Dec 2001
Posts: 5,705
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From: St. Peters MO
C7 of Year Finalist (stock) 2019
2018 C7 of Year Finalist
I'll assume someone else activated the Theft Loc prior to you getting the car. If they didn't write down the code they used (that you need to enter to unlock it), a trip to the dealer is in order.
Team Owner
Joined: Jul 2001
Posts: 21,360
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From: Various places in Southern California.
Most cars with coded radios come coded from the factory--the Vette (and other Chevrolets, I assume) is different.
Team Owner
Joined: Oct 2004
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From: San Clemente CA
Thread Starter
Instructor
Joined: Jun 2005
Posts: 219
Likes: 0
I am using the dealer procedure and get the same reset code on both procedures.
It is like a lottery number. You take the first 3 #'s and the second set of #'s to get the recovery number.
It is hard to believe I would get the same # in a two segment recovery procedure.
I will keep you up to date with what I find out.
I was hoping a GM tech on this site might have run into this issue.
PS.The Tech II does not interface with the radio.
It is like a lottery number. You take the first 3 #'s and the second set of #'s to get the recovery number.
It is hard to believe I would get the same # in a two segment recovery procedure.
I will keep you up to date with what I find out.
I was hoping a GM tech on this site might have run into this issue.
PS.The Tech II does not interface with the radio.
Le Mans Master
Joined: Aug 2000
Posts: 6,486
Likes: 1,658
From: Las Vegas NV
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Le Mans Master
Joined: Aug 2000
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From: Las Vegas NV
When a GM radio is first installed, it 'learns' part of the host car's VIN over the vehicle's data bus. The radio stores this info in its memory, and is then 'locked' to that vehicle. Every time the car is started, the radio checks the VIN segment in memory to the VIN of the host vehicle (using the data bus of the vehicle). If it matches, the radio plays. If it doesn't, the radio shows "LOCKED".
If you transfer the radio to another vehicle, the VIN segment in the radio memory must be reset to the new host vehicle by hooking up the TECHII tool to the vehicle, and running a certain "VIN Relearn" procedure.
Went to the shop and made a phone call to GM 