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I HAVE A DELPHI DELCO GM RADIO 2004. I NEED THE UNLOCK CODE. DELPHI PART NO. 21003401 SERIAL NO. 89WAFUM342463391

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Factory fitted radio/music players need a code to unlock this device when the battery is disconnected or removed from the motor vehicle. This is an anti-theft method of protecting audio devices in motor vehicles.
The reactivation code is in the your motor vehicle user manual. If you have lost this manual to nee to contact the service department where the vehicle was purchased and they will give you the code to activate your radio again.

Posted on Mar 28, 2011

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Posted on Jan 02, 2017

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3 Answers

Had to recently replace battery. now I need the code to reset radio.


GM Delco Radio Lock Out - Forums - Car Review

forums.carreview.com/showthread.php?1839-GM-Delco-Radio-Lock...

Sep 29, 2005 - 25 posts - ‎14 authors
2000 Chevy S10 pickup, battery died, replaced, radio now locked ... Does one haveself service cheaper options to get the code and ... Note: if the display does notchange from "LOC" to "000" the unit is ... Recently I noticed that the led was flashing indicating that THEFT .... I had the same problem as you.

How can I find the unlock code to a Chevy S10 radio? ' Yahoo Answers

https://answers.yahoo.com/question/index?qid...
Feb 24, 2008 - The radio display changes to SEC Your radio is now "un-locked" and usable. ... Source(s): find unlock code chevy s10 radio: https://tr.im/o2Hg7 ... that youhad to disconnect the battery and you need the code for the radio. ... to have it reset, which could mean replacement of the microchip that stores the info.

Aveo factory radio unlock code- DEALERS CAN'T HELP ME! - Car ...

www.automotiveforums.com > ... > Chevrolet > Aveo

Jan 13, 2016 | 2002 Chevrolet S-10

1 Answer

I have the six digitcode682695 for 2,000 Chevy astro van delco radio. How do ifind the loc code for it



re: 2000 Chevy astro van delco radio unlock code 682695.

Good luck and please flag if HELPFUL". Thanks!

How to Unlock a Delco Radio - Instructions

1) Obtain the six-digit dealer code - yours is above. ( this doesn't apply: Contact your local GM dealer. If you explain the situation, most will provide the code to you. If they are not willing to provide the code, contact other GM dealers until you find one that will help you

2) Turn the ignition key to the "ON" position, without turning the engine over. Hold the preset buttons "2" and "3" for 10 seconds. The radio will display a three-digit code. Write this number down and then quickly press the "AM/FM" button. Three more digits will be displayed. These six numbers are the serial code for your radio.

3) Call the GM assistance hotline at 800-537-5140. Follow the prompts and select the brand of your vehicle. Enter the six-digit dealer code and then enter the six-digit radio serial code. The automated system will provide you with a four-digit code to unlock your radio.

4) With the ignition on, use the "Hour" button on your radio to input the first two numbers of the four-digit code. Use the "Minute" button to input the last two digits. Press "AM/FM" to set the code. The radio is now unlocked and ready for use.

(from link: http://www.ehow.com/how_6168368_unlock-delco-radio.html / By Leonardo R. Grabkowski, eHow Contributor)

Here's a related video:

http://www.youtube.com/watch?v=XO2UuBO9llY

Nov 23, 2014 | Cars & Trucks

1 Answer

Need code to unlock delphi delco radio GM part#15234935


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 vehicle manufacturer's service centre and get them to enter this code for you.

Feb 15, 2013 | Cars & Trucks

1 Answer

Ineed unlock code for chevy suburban 2004


must go to a gm dealer they will plug in with mdi and call gm for a unlock code

May 12, 2012 | Ac Delco AM-FM Radio Cassette

1 Answer

Reset code to unlock my radio


http://www.DelcoLockCodes.com will get you your radio unlock code for $5.00.
Contact a GM dealer, preferably the selling dealer. They may have the code stored in their computer system if they sold the car. Otherwise you are probably going to have to remove the radio and get the Serial # off the radio. With this serial # the GM dealer will provide the code.

Jun 01, 2010 | 1998 Chevrolet Cavalier

2 Answers

I need help unlocking delco radio


You need to contact a GM dealership to have them verify ownership and lookup the code for you if you do not have it in your owners manual.

Apr 18, 2010 | Pontiac Grand Am Cars & Trucks

1 Answer

When i try to turn my radio on it says loc hoow do i unlock it?


Does your GM car or truck Radio display LOC and does not turn on? Chevrolet, Buick, Pontiac, GMC, Cadillac, Oldsmobile vehicles used a theft system to lock the radio when power is lost. This system was used from the ealy 1990's to the early 2000's.

Instructions:
  1. If your radio displays the word LOC, you can retrieve a set of factory numbers in the radio that enable you to get a backup unlock code. If the radio says INOP, you will have to leave the key in the "ON" position, or let the car run for at least 1 hour before you attempt any unlock procedure. INOP means a secondary theft lock due to too many false attempts to unlock the radio.
  2. Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
  3. Next press the AM / FM button. A new set of 3 numbers will now show. Write these numbers down. You will then need to call a 1-800 phone number with these numbers to get the unlock code. There are many sites on the internet that can get it for you- for a small fee. Or, try calling your local GM Dealer and ask for them to do it. Many times they will do it for free. It only takes a minute.
  4. Once you have the unlock code, enter it by pressing the MIN button until the display shows the last 2 digits of the unlock code, then press the HR button until the first 2 numbers or shown. Then press the AM / FM button to enter the code. The radio will now display SEC, and normal function is restored.
Also, its possible that you need RESET your GM Radio; this is the procedure: While performing maintenance on your car, you may disconnect the radio from the battery in your GM vehicle. GM cars contain Delco radios that are protected by Theftlock, which locks the radio after it has been disconnected from a power source. Iit can only be reset and unlocked with a car-specific security code. Identifying the security code for your GM vehicle is the only way to reset the car radio and disable the Theftlock protection device.

Instructions:
  1. Turn on your car. Your Delco radio will show "LOC" in the LED display.
  2. Press and hold down both the second and third preset buttons. Hold these buttons down for at least six seconds.
  3. Write down the two- or three-digit code that appears in the LED display.
  4. Press the AM/FM button on the radio.
  5. Write down the next two- or three-digit code that appears in the LED display. You should be left with either a four- or six-digit number. Turn off your car.
  6. Call the Delco radio automated customer support line at 1-800-537-5140.
  7. Press "1" and then press the pound sign. The automated voice should respond "Invalid code, try again."
  8. Enter the number 139010 into your phone and then press the "*" sign.
  9. Enter the four- or six-digit number you wrote down from Steps 3 and 5, and then press the "*" button.
  10. Write down the four-digit code given by the automated voice.
  11. Turn on your car. Enter the Delco unlock code using the procedure outlined by your GM owner's manual. Normally, the unlock code is entered with the "HR" and "MN" buttons on your radio.
  12. Press the AM/FM button. If you have entered the code correctly, your LED display will read "SEC" and the radio will be unlocked.

Also can check your Does your GM car or truck Radio display LOC and does not turn on? Chevrolet, Buick, Pontiac, GMC, Cadillac, Oldsmobile vehicles used a theft system to lock the radio when power is lost. This system was used from the ealy 1990's to the early 2000's.
jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:
  1. If your radio displays the word LOC, you can retrieve a set of factory numbers in the radio that enable you to get a backup unlock code. If the radio says INOP, you will have to leave the key in the "ON" position, or let the car run for at least 1 hour before you attempt any unlock procedure. INOP means a secondary theft lock due to too many false attempts to unlock the radio.
  2. Looking at the face of your GM Delco radio, hold down the preset buttons 1 & 4 OR 2 & 3 (Depending on year and model) for approximately 10 seconds or until a set of 2 or 3 numbers comes up on the display. Write the numbers down.
  3. Next press the AM / FM button. A new set of 3 numbers will now show. Write these numbers down. You will then need to call a 1-800 phone number with these numbers to get the unlock code. There are many sites on the internet that can get it for you- for a small fee. Or, try calling your local GM Dealer and ask for them to do it. Many times they will do it for free. It only takes a minute.
  4. Once you have the unlock code, enter it by pressing the MIN button until the display shows the last 2 digits of the unlock code, then press the HR button until the first 2 numbers or shown. Then press the AM / FM button to enter the code. The radio will now display SEC, and normal function is restored.
Also, its possible that you need RESET your GM Radio; this is the procedure: While performing maintenance on your car, you may disconnect the radio from the battery in your GM vehicle. GM cars contain Delco radios that are protected by Theftlock, which locks the radio after it has been disconnected from a power source. Iit can only be reset and unlocked with a car-specific security code. Identifying the security code for your GM vehicle is the only way to reset the car radio and disable the Theftlock protection device. jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); });
Instructions:
  1. Turn on your car. Your Delco radio will show "LOC" in the LED display.
  2. Press and hold down both the second and third preset buttons. Hold these buttons down for at least six seconds.
  3. Write down the two- or three-digit code that appears in the LED display.
  4. Press the AM/FM button on the radio.
  5. Write down the next two- or three-digit code that appears in the LED display. You should be left with either a four- or six-digit number. Turn off your car.
  6. Call the Delco radio automated customer support line at 1-800-537-5140.
  7. Press "1" and then press the pound sign. The automated voice should respond "Invalid code, try again."
  8. Enter the number 139010 into your phone and then press the "*" sign.
  9. Enter the four- or six-digit number you wrote down from Steps 3 and 5, and then press the "*" button.
  10. Write down the four-digit code given by the automated voice.
  11. Turn on your car. Enter the Delco unlock code using the procedure outlined by your GM owner's manual. Normally, the unlock code is entered with the "HR" and "MN" buttons on your radio.
  12. Press the AM/FM button. If you have entered the code correctly, your LED display will read "SEC" and the radio will be unlocked.

Also can check 1999-Pontiac-Firebird-Owners-Manual (page 163), there are several information about to lock and unlock.


Hope this help (remember comment and rated this).

Apr 06, 2010 | 1999 Pontiac Firebird

1 Answer

Bought a new cd player for my 2004 malibu maxx,


You will have to have the radio programmed to the vehicle (they have to do a service program to store the VIN in the new radio and configure the features to your vehicle..) it is a security feature. plus the 04 malibu maxx uses the GM LAN data com. and your radio is also your driver's information center.


guitdown ASE master tech/ GM tech.

Jun 21, 2009 | Car Audio & Video

1 Answer

Delco delphi cd radio (GM)


SEND ME AN E-MAIL TO JAOM68@PRODIGY.NET.MX AND TELL ME WHAT APPEARD ON YOUR RADIO DISPLAY.

May 08, 2008 | Car Audio & Video

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