Question about 2000 Chevrolet Silverado

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Default code to unlock factory radio in a 2000

Changed the alternator in my truck and the factory radio is now LOC. Default code to unlock factory radio in a 2000 Chevy Silverado

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How to Reset GM Theft lock Radio's
Article Disclaimer: This article is meant to be used by Delco Radio owners to reset there radios. In no way is it meant to be used for any unethical or unlawful ways.

Purpose
The following instructions will allow you to reset any GM (General Motors), Cadillac, Oldsmobile, Buick, Pontiac theft lock radio.

Requirements
The theft lock radio must be in "LOC" mode.

Procedure:
1. Turn the ignition ON (The radio should display "LOC")
2. Hold down the Radio Presets 2 and 3 buttons for six seconds
3. The radio display changes from LOC to a three-digit number. Write this number down. You now have fifteen seconds to complete the next step.
4. Press the AM/FM button
5. The radio display changes to another three-digit number. Write this number to the right of the first one
6. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05
7. Call 1-800-537-5140
8. Press 1 then # (pound). You'll hear "Invalid Code, try again"
9. Press 139010 or 106010 or 206010 or 202107 then # (pound). You will be asked to enter your four or six digit code followed by *
10. Enter the number from STEP 6 then *
11. Listen to the four-digit number and write it down. It will be repeated twice
12. Turn the ignition ON (The radio displays LOC)
13. Use the MN and HR buttons to enter the code from STEP 11
14. Press the AM/FM button. The radio display changes to "SEC". Your radio is now "un-locked" and usable.

Dealership Codes
139010
106010
206010
202107

Troubleshooting
If you fail to enter the correct code eight times, the radio goes into INOP mode. You have to wait an hour with the ignition on before the radio returns to LOC mode.

To Read the original article or read similar articles please visit kingbain.com/how-to/unlock-gm-theftlock-radio-s

Good luck (remmeber comment and rated this).

Posted on May 05, 2010

  • kmhensleypi May 28, 2010

    Awesome, actually worked. It was the second number on the list.

  • Anonymous Jul 25, 2015

    i got my son to do it took him 2 min.lol young people know this computer stuff

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Try this...REALLY.....pause no more than 15 secs between steps.......Turn ignition on....loc will appear......Press MN,000 will appear on display........Press MN again to make the last two digits agree with your code......Press HR to make the first one or two digits agree with your code........Press AM-FM after you have confirmed that the code matches your KNOWN(secret)code.....it will now read SEC,indicating that your radio is now operable.....your welcome.

Posted on May 06, 2010

  • don gosch Dec 17, 2011

    d.g.of vancouver this workes great. sec. factory # worked fine

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