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Radio theft code

I refuse to pay someone to give me a theftlock code for my new 2000 Chevy Trailblazer that I just picked up from an auction. Unhook battery to do some engine work and the dealership wants $30. Is there anyone out there that can throw me a bone please.

Thanks Jason
I have a 2004 Chevy Impala with a Delco Radio, IT doesn't show RDS on the face of the radio. Ive tried pushing 2/3 and 1/4 together at the same time, and nothing comes up with a 3 ditg number. Is there anything else I can do to retreive these numbers that are needed?

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The dealer wants the $30 to remove the radio to determine the serial number from the radio. Remove the radio yourself (quite easy to do - two philips screws at the bottom of the facia, it pops off, then four 7/32 machine screws holding the radio bracket and out it slides), then drive to the dealer in the vehicle the radio came out of. The service department will give you the code when you show them your registration and show them the radio itself so they can read the serial number.

Posted on Dec 18, 2008

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Cd Code need code for am fm / CD /cassett player purchased at junk yard out of a 2000 Suburban and putting it into my 2010 Chevy Colorado which has only basic am / fm radio? How do I get past "locked"...


That is a security "feature" on GM radios to deter theft. The following instructions has had sucess with other GM vehicles. If not, only a dealer has the equipment to get past lock screen.

This works on vettes with theftlock. Try it on the tahoe and let us know....




The following procedure will give you a new code that you can use instead of your personal code. Using this new code, you can "unlock" your radio and then "re-lock" it with a new code if you wish. Prerequisites: The radio must be in LOC mode NOT in INOP mode. Let me explain. If you have activated the Theft-Deterrent feature of your radio and loose power, the radio goes
into LOC (theftlock) mode. With the ignition on, you must use the MN and HR buttons to enter you personal code in order to unlock it (The instructions are on page 3-27 in your Y2K Owner's manual). If you fail to enter the correct code eight (8) times, the radio goes into INOP
mode. You have to wait an hour with the ignition on before the radio returns to LOC mode (go for a long drive somewhere).

Procedure: 01. Turn the ignition ON (The radio displays LOC)

02. Hold down the Radio Presets 2 and 3 buttons for six seconds

03. The radio display changes from LOC to a three-digit number. Write this number down. Don't take forever, fifteen seconds max before the next step.

04. Press the AM/FM button

05. The radio display changes to another three-digit number. Write this number to the right of the first one.

06. You now have a six-digit number, the first three digits are from STEP 03 and the last three digits are form STEP 05

07. Call 1 800 537 5140

08. Press 1 then # (pound). You'll hear "Invalid Code, try again"

09. Press 139010 then # (pound). You will be asked to enter your four or six digit code followed by * (start)

10. Enter the number from STEP 6 then * (star)

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. The Theft-Deterrent feature is STILL active! If you want to disable it, use the instruction on page 3-27 in your Y2K Owner's manual. Use the code from STEP 11 instead of your personal code. Note: This tip originated from LOTZAHP, Austin TX (credit must be given where credit is due). I verified it on an Y2K C5 with a locked radio - mine.
http://chevroletforum.com/forum/tahoe-suburban-25/help-radio-locked-8220/

Aug 19, 2013 | Chevrolet Cars & Trucks

1 Answer

2004 GRAND PRIX RADIO THEFTLOCK REMOVE


You need to enter the unique code for your radio that was given to the orig owner. If you do not have that you will need to see the GM dealer.

Jun 25, 2012 | Cars & Trucks

1 Answer

Need radio code for Chevy venture 2003


radioo
02-20-2006, 02:03 PM
Only a GM dealer can unlock the radio.

It is much smarter to disable lockout entirely, with MP3/WMA, DVD and XM-ready stereos, the regular CD, cassette, and radio-only units aren't so hot.

The following applies to an unlocked powered-on radio (2000 shown)

1. Do not disconnect the battery

2. Press the stereo's "1" and "4" buttons at the same time for five seconds with the ignition on and radio power off. he display will show "SEC", showing anti-theft is on

3. Press the MN button, the display will show "000"

4. Press the MN button until he last two numbers are the same as your secret code (how do you find this? you decide the code?)

5. Press HR until the first one or two numbers displayed match your code. The numbers will be displayed as entered.

6. Press "AM/FM", if the display shows "_ _ _ " you have disabled Theftlock, if "SEC" is shown, it is still in Theftlock

01-30-2010, 02:14 AM
I just tried this for my 1998 Chevy Venture and it works! press the 2 & 3 numbers at the same time for about 10 seconds; a 2 or 3 digit code will come up; press the am/fm button for about 10 seconds; another code will appear; dial 1-800-537-5140 and enter 106010 followed by the # sign; enter the 4 or 6 digit code from your radio followed by an *; the phone number will give you a 3 or 4 digit override code; enter this code into your radio just as your owners manual tells you to - use the hour and minute buttons to put in the unlock code, Press AM/FM button, "SEC"---" will display and You can turn on the radio. I had tried this with another dealer code and it wouldnt work, but with the 106010 dealer code it worked just fine, my unloc code was 0120

Jan 21, 2011 | Car Audio & Video

1 Answer

Unlock radio need code to lock radio mufflerman08@yahoo.com


Your '02 is too new to unlock on your own.

There are 2 types of GM Theftlock, Theftlock I and Theftlock II. The Theftlock I is found in pre 2000 vehicles, and Theftlock II is in the later models.


Theftlock I - Uses a volatile user settable code that is input through the key pad on the front of the Radio. If the power is lost (dead battery etc.) the code is gone and must be re-entered for the radio to work. But with the correct procedure the owner can unlock it.

Theftlock II - Uses an EPROM (erasable/programmable read only memory) or a PROM (the difference is you can not alter the prom once it is programmed).

In either case the code is burned in and holds even when the power is lost. With Theftlock II the radio is married to the vehicle by way of the VIN. When the vehicle is started the computer compares the number in the radio with the VIN in the body control module. If they match, the radio works, if not the radio displays LOC and you are finished, there is no easy way around it. The radio will not work until you make a trip to the dealer.


The dealer will use a TECH 2 scanner to change the VIN stored in the radio. The radio does not need to be removed (for the serial number or any other nonsense). The technician just plugs into the computer and resets the VIN in the radio.

Thank you for using Fixya and you may want to try pulling the fuse to your radio for 2 min and then reinstalling it. This may reset your radio and have the ECM recognize the radio matching VIN number to the Trailbalzer.

Jul 15, 2010 | 2002 Chevrolet TrailBlazer

2 Answers

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

3 Answers

2000 chevy s-10 4 digit code for the radio, its locked


this did not work it says code 139010 is invalid to I cant get past step 8 or 9 my number from step 3 is 702 and step 5 is 706 someone please help Im going crazy

Nov 05, 2009 | 1998 Chevrolet S-10 Pickup

2 Answers

GM Delco Radio unlock code


There are 2 types of GM Theftlock, Theftlock I and Theftlock II.


The Theftlock I is found in pre 2000 vehicles and Theftlock II is

in the latter models.


Theftlock I - Uses a volatile code that is input through the key

pad on the front of the Radio. If the power is lost (dead battery

etc.) the code is gone and must be re-entered for the radio to

work.


If you do not have the code, you can get it by phone, email, etc.

but you will need the 6 digit Radio ID number.


To get that, just turn on the ignition and hold down the 2-3 keys

(sometimes 1-4) and the first 3 digits will appear in the display.

Then hold down the AM/FM button and the last 3 digits will

show up.


With this number you can get the unlock code. This code is

available all over the place for less then $10.00. Just search

on theftlock. Use the HR and MIN buttons to enter the code

and you are in business.


This may sound a bit complicated at first but you can do it

in less then a minute with a little practice.


Theftlock II - Uses an EPROM (erasable/programmable

read only memory) or a PROM (the difference is you can

not alter the prom once it is programmed). In either case

the code is burned in and holds even when the power is lost.


With Theftlock II the radio is married to the vehicle by way

of the VIN. When the vehicle is started the computer

compares the number in the radio with the VIN. If they

match, the radio works, if not the radio displays LOC and

you are finished, there is no easy way around it. The radio

will not work until you make a trip to the dealer.


If the radio has an EPROM the dealer will use something called

a TECH 2 DEVICE to change the VIN stored in the Radio.

The Radio does not need to be removed (for the serial

number or any other nonsense). The technician just plugs

into the computer and resets the VIN in the radio. It can

be done (if you know how) in less then 15 minutes.

I checked around and the going rate is about $60.00

(none of the dealers I contacted would do it for free).

That works out to $240.00 per hour, but still much

cheaper then a new GM Radio.


If the radio has a PROM then the chip must be changed

and that seems to be factory only, in other words a new

radio! The good news is, only a very few of the high end

GM vehicles are equipped with a PROM so it is highly

unlikely that your radio has this anti theft feature.


Good Luck!

Sep 19, 2009 | 2000 Chevrolet Astro

2 Answers

Radio theft code


$30 is cheap, My dealer want $115 and I'm a used car dealer myself..

Jul 15, 2008 | Bose Wave Radio

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