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Unlock car stereo gm delco - Suburban Chevrolet Cars & Trucks

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  • maryme Oct 21, 2008

    Year model 2005 Chevy Suburban, factory radio with CD not sure if it is a Delco....need to replace car battery and was told I need the code for the antitheft for the radio to work after I remove the battery. HELP!! meg

  • Anonymous Dec 26, 2008

    2001 corvette stereo lock will not come unlocked...how to get reset??>?

  • Anonymous Jan 27, 2009

    1997

  • Anonymous Jan 28, 2009

    rds radio cd

  • taylor1406 Jan 29, 2009

    NO SOUND COMES OUT OF MY RADIO BUT EVERYTHING ELSE WORKS FINE

  • gbravenec Feb 27, 2009

    I have a 2005 Chevy Silverado truck and stereo is locked need code to unlock stereo. Chevy house will not give code without $100. please help.

  • hondaaccord Mar 04, 2009

    please help i am having the same problem in my 04 suburban with a bose. everything works just no sound

  • Anonymous Apr 01, 2009

    I had to unplug the battery for repairs, now my radio is locked. It is a 1998 chevy monte carlo, what can i do?

  • omar_z06 Apr 01, 2009

    whats the unlock code for stereo cd colorado 2004

  • Anonymous Apr 11, 2009

    2006 chevy factory cd changer locked

  • Anonymous Apr 22, 2009

    I desconect stereo and now is lock

  • macey1966 May 08, 2009

    2001 pontiac aztek stero locked changed battery and itlocked help!!!!!!!!!

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The following website has the answer. I copied the solution from the site below for quicker reference.

http://wiki.answers.com/Q/How_do_you_overide_the_theftlock_system_on_a_GM_car_stereo_My_father_passed_away_I_replaced_the_battery_and_dont_know_the_code._Tried_a_couple_guesses_and_it_went_from_LOC_to_UnOP_code_Help

First thing check the owners manual that came with the car. Most people write the code in the book. If this doesn't help call or go to the dealership, bring the registration card or title with you. If the radio is factory they will be able to get you the security code.

Hopefully this helps. JQ

GM DELCO THEFTLOCK RADIO UNLOCK CODE:
1. Press and hold presets 2 and 3 for about 5 to 10 seconds until you get 3 digits on your display. This is the first 3 of 6 digits you will need, so write 'em down.

2. After doing step one and writing down the code, immediately press the AM/FM button to get the last 3 of the 6 numbers you'll need, and write 'em down. (if you wait too long between steps 1 and 2 and the LOC code displays again, just start over).

3. Call this number, it's a prerecorded message, so don't worry about having to talk to anyone...1-800-537-5140. The voice will ask if you're calling for Chevy, Pontiac, Cadillac, etc... When you here him tell you to press "2" for Pontiac, press 206010 and hit the # key. He'll ask you for the 6 digit code that you've written down. Enter that and press the * key. He will then give you a code, and the option to get additional 4 digit codes, but one should be sufficient.

4. Follow the normal procedure in your owners manual for unlocking the radio with your new code...press the hour set button on your radio until you get the first two numbers of the code, then press the minute set button until you've entered the last two numbers. Immediately press the AM/FM button once the correct code is entered and the code SEC or "secured" will be displayed on the display screen. Now, just turn the radio on, and your ready to roll.

There is an additional step you can take to remove all codes from the radio and start from scratch by entering your own personalized 4 digit code so that it won't get you in a pickle again! Just repeat step 4 and you should get a display screen that reads ---. This means the code is out, and you can now program your own code. Of course, once you receive the 4 digit code from the GM recorded message, just keep it in a safe place, because you can use that same code again and again should you have any more problems with it in the future. Good luck, and yes, it does work.

Posted on Aug 21, 2009

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What year?

Posted on Oct 01, 2008

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USfalcon
  • 175 Answers

SOURCE: codes for a 1995 pontiac grand prix stereo delco

the best way to do this is u can call any pontiac delar close to your place and they will give you the code direct by enter some information to your car radio

Posted on Mar 15, 2009

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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

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What do i press to start the unlock prossess on a 02 impala delco stereo cassette player


There is no "unlock process" that I am aware of. If the radio/stereo says "LOCK" on the display, it is because it is either not the original radio for the car, or it is not getting the correct VIN from the Powertrain Control Module. It "thinks" it has been stolen and installed in a different vehicle.

If you are installing a used radio from a salvage yard or something like that, it will be necessary to have the radio memory "re-flashed" with the correct VIN for the vehicle it is going into.
Your local GM dealer can do this for you, but you must produce proof that you own the vehicle and proof that shows where you got the used radio from.

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Delco stereo unlock code


you need to contact dealer and provide your VIN# to get radio code. It's theft deterrent radio and dealer is only source for codes.

Mar 04, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

I need unlock code delco for tahoe 2002


GM DELCO THEFTLOCK RADIO UNLOCK CODE:

http://www.dieselplace.com/forum/showthread.php?t=40705

Should do the trick...

Good Luck

Feb 06, 2011 | 2002 Chevrolet Tahoe

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Whats the stereo code in my chevy silverado 1999


Easy go to ebay and look for AC Delco GM Radio Unlock Code TheftLock Chevy just pay $ 5.00 for the action and this guy send your code in about 2hrs. jut follow the instructions good luck!!!

Apr 27, 2010 | 1999 Chevrolet Silverado 1500

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.
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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

Codes for a 1995 pontiac grand prix stereo delco


the best way to do this is u can call any pontiac delar close to your place and they will give you the code direct by enter some information to your car radio

Mar 15, 2009 | 1995 Pontiac Grand Prix

1 Answer

Locked stereo in 1995 Holden Barina


I dont know if holden barina uses the same stereo as a US GM vehicle, but if it is a delco stereo (same as US models) then any gm dealer can retrieve the scrambled code and call their automated system to get the unscrambled unlock code. Just make sure if they do this for you to have them disable the theftlock system. With theftlock disabled a dead battery will not cause you any further problem. Hope this helps.

Nov 23, 2008 | 1998 GMC Blazer

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