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Radio unlock code

Hi, i need the 2000 gmc yucon anti theft radio unlock code,kids put coins in cd and i disconeted the radio and got coins out and put it back to gether and now radio does not work. please tell me u can help me? thanks,bill

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Re: radio unlock code

Press & hold the 2 & 3 buttons @ the same time for about 10 seconds; a 2 or 3 digit code will appear, write this # down,press & hold the am/fm button for about 10 seconds: another code will appear, write this # down, then call 1-800-537-5140 and enter 202108 followed by the * key, then enter the #'s that you wrote down from your radio followed by the * key. The call will give you a 3 or 4 digit override code. Write this code # down so you have it if you ever need it again. Enter this # into your radio following the instructions in your owners manual. If you get an override code that starts with 0, you drop the 0 when entering the code into your radio.
If you don't have an owners manual, try this, press & hold the hour button until the first 2 digits of your code come up, then press & hold the minute button until the last 2 digits show. Then press the am/fm button. This should reset your stereo.
if nothing happens you should leave your car running for 1 hour.

Posted on Apr 19, 2009

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Re: radio unlock code

Need sterio code for 2006 chevy uplander can anyone help sterio locked

Posted on Jun 12, 2009

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Unlock code

The code is the anti theft device that you will need to get the machine to work again. It would have come in the box when you bought it or be in the operators instructions book that came with the machine. Other than that contact the maker and see if he can help. You may need proof of purchase. model no, etc to get the info.

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You should have a look at the owners manual, where the code almost sure is... Or maybe a card from the radio.
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Security code for holden vectra 2002

When you disconnect your battery and then reconnect it again, it disables the radio. This is an anti-theft protection for your car radio.
The enable your radio the activation code is in your vehicle owner's manual. If you do not have this code you need to go to your Holden service centre and get them to enter this code for you.

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Misplaced unlock code for clarion cx501 how do I unlock the unit?

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Dec 18, 2011 | Clarion Car Audio Receivers

1 Answer

I need the code to unlock this system please help bought used at the swapmeet don't have the code.

the code is an anti theft device there is only two ways to get the code 1. when the radio was first sold it came with a card that has the code 2. contact kenwood directly they have a master code for each specific model that will unlock it. However they wont give you the code unless your a car audio dealer or can show proof that you were the origanal purchaser needing serial# on unit and reciept

Jul 16, 2010 | Kenwood KDC-716S CD Player

2 Answers

The screen says protect and it wont come off the screen or play radio or cds what do i do?

This radio is equipped with an anti-theft device, if the battery power is disconnected from the radio for more than a few minutes, it goes into lockdown or "protect" mode. The only way to get the code is to call the manufacturer with the product number and serial number, generally they will verify your identity and then provide you with the unlock code.

Jun 21, 2010 | Kenwood KDC-MP235 CD Player

2 Answers

I took the battery out of and now my Kenwood Stereo asks for a code.

Reset the radio by pushing the small button on left side of the #1 preset. it is probably pulling the code for the anti theft protection. if you already have a lock code use it to unlock the tuner otherwise reset the tuner

Mar 24, 2010 | Kenwood KDC-135 CD Player

1 Answer


This feature is for anti-theft, if there was an easy way to "unlock" it then any thief could steal your radio and reset the password. There is no hack here, you have to call Clarion. This is from the manual;
• If you have lost your Personal Code, please
contact Clarion customer service
I've never been through this but they might ask you to send it in. Regardless of it being some system error and not your error. Although if the radio does have a glitch like you said then sending it in might be a good thing.

Oct 19, 2009 | Clarion CX609 Car CD/ MP3 Player

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