Radio Locked

04SilverSierra · 08-09-2005, 11:32 AM

OK I took the 6 disc out of my Sierra and put it in my dads Trailblazer. I did it with the power on in the TB and the radio worked fine until i cranked the engine and it locked

I went to the dealer and he hooked the tech-2 up to it and said he couldnt unlock it. He said there is a problem with switching from the truck to the TB

Does anyone have any advice on how to unlock it? Otherwise I guess I will have a 6 disc for sale

idbl_Fanatic · 08-09-2005, 12:03 PM

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 in your Owner’s manual. Use the code from STEP 11 instead of your personal code.

blusxty9chevell · 08-09-2005, 12:51 PM

D@MN this guy has to of had to do it atleast once b 4......

Mark · 08-09-2005, 01:43 PM

exactly as he said above..

Joe · 08-09-2005, 01:46 PM

Great info, this is now a sticky

Blaze5509 · 08-09-2005, 02:03 PM

Damn!
Now that is some research!

Good job "idbl Fanatic"

doe702 · 08-13-2005, 08:22 AM

will this work with all new gm radios? you dont need to SPS program the system? thnx

98chevyZ71 · 08-13-2005, 01:43 PM

wow now i can go steal me some stock radios! no wait. why would anyone want a stock radio?

bigmark76 · 08-14-2005, 10:09 PM

Is there a way to unlock the navigation radio?

bikernut · 10-25-2005, 04:51 AM

Does this work for all GM radios, my 1997 is locked and driving me crazy without tunes. thanks

SwampBus · 12-17-2005, 02:36 PM

Quote:

Originally Posted by 98chevyZ71

wow now i can go steal me some stock radios! no wait. why would anyone want a stock radio?

I'm right next to Gary Indiana so stolen stock radios are pretty common.

Bob T · 12-17-2005, 05:20 PM

Quote:

Originally Posted by Blaze5509

Damn!
Now that is some research!

Good job "idbl Fanatic"

Probably just a lucky guess.

aldaran · 03-17-2006, 05:52 PM

This does not work on 2003+ The display is "LOCKED" not LOC. Unfortunately, our local dealer couldn't unlock a radio I got on Ebay.

****Update****

Another dealer was able to unlock using their computer scanner. They simply deleted the old VIN from the radio and added mine. Apparently our local dealer was trying to unlock it the old way by holding the 2 and 3 buttons down. The cost was about $50 bucks when it was going to be free for doing it the old way. Anyway, my radio from Ebay works fine now.

CrazyMack · 04-04-2006, 03:32 PM

Man am i glad i found these forums

netscaper · 05-15-2006, 10:22 PM

THANK YOU "Fanatic" for your GM unlock post.
IT WORKS GREAT.

tomdon23 · 06-06-2006, 01:44 PM

if there is a mode button hold that down and press the power button on the 6 disc that should unlock it

rpdtony · 06-24-2006, 08:12 AM

I'm trying to switch out a factory radio I got from a salvaged vehicle in my 2002 Trailblazer. The display says "locked" rather than "loc" and I tried holding down the 2 and 3 presets and got no response. Will I have to take it to the dealer? If so, how much will it cost?

Tafternoon · 07-15-2006, 06:17 PM

I hate Theftlock.

Partsguy198 · 07-17-2006, 12:12 PM

Quote:

Originally Posted by rpdtony

I'm trying to switch out a factory radio I got from a salvaged vehicle in my 2002 Trailblazer. The display says "locked" rather than "loc" and I tried holding down the 2 and 3 presets and got no response. Will I have to take it to the dealer? If so, how much will it cost?

I have an 02 TB and I'm looking into swapping my OE for another OE. Just trying to get all the info I need beforehand.

willy victor · 08-04-2006, 09:02 PM

Will this procedure work on an 01 Silverado. I bought the truck with 4000mi. on it and I don't know if anyone ever put a code into it. Eventually I'm going to need a new battery and I would like to get the radio working.

Willy Victor

08-09-2005, 11:32 AM	#1
04SilverSierra Registered User Status: Offline Join Date: Dec 2003 Member ID: 10691 Pics: My Gallery Location: SOCAL Age: 23 Posts: 352	Radio Locked OK I took the 6 disc out of my Sierra and put it in my dads Trailblazer. I did it with the power on in the TB and the radio worked fine until i cranked the engine and it locked I went to the dealer and he hooked the tech-2 up to it and said he couldnt unlock it. He said there is a problem with switching from the truck to the TB Does anyone have any advice on how to unlock it? Otherwise I guess I will have a 6 disc for sale 04 SIlver Sierra everything except leather Line X, Trenz Billet Grill, Escalade Handles FINALLY DONE-- but now its all stock again 12" Bulletproof kit 1.5" Coil Spacer 4" CST Spindle 9"atlas Springs 4" block Mountain Crushers on 37 PJs

08-09-2005, 12:03 PM	#2
idbl_Fanatic SPL NUT!!! Status: Offline Join Date: Jul 2002 Member ID: 2169 Pics: My Gallery Location: Stockton, Ca Age: 36 Posts: 1,824	Re: Radio Locked 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 in your Owner’s manual. Use the code from STEP 11 instead of your personal code. Need more power? UP YOURS!! with Excessive Amperage!

08-09-2005, 12:51 PM	#3
blusxty9chevell Registered User Status: Offline Join Date: Jun 2005 Member ID: 29787 Pics: My Gallery Location: Valliant, Okla Age: 20 Posts: 53	Re: Radio Locked D@MN this guy has to of had to do it atleast once b 4...... 05 RCSB Chevy Silvy 4.3 Debaged Eagle 219z Hankook 275/60R17z 2 Infinity Reference 12"z mounted in a Pro Box....and a Db Speed series 1200.1 Amp.....

08-09-2005, 01:43 PM	#4
Mark :-) Status: Offline Join Date: Jun 2001 Member ID: 2 Pics: My Gallery Location: Austin, Texas Age: 31 Posts: 7,228	Re: Radio Locked exactly as he said above..

08-09-2005, 01:46 PM	#5
Joe sofa king we todd did Status: Offline Join Date: Sep 2001 Member ID: 171 Pics: My Gallery Location: Detroit Age: 41 Posts: 26,626	Re: Radio Locked Great info, this is now a sticky 2000 GMC Sierra Z71 // 1967 Chevy Project // Michigan Classics // 67-72 Chevy Trucks // SerfzUp - Home & Small Business Network Solutions // My ebaY auctions


Home Forum Gallery Rules Downloads Supporting Member Ebay on FSC!

08-09-2005, 02:03 PM	#6
Blaze5509 hippies hate deathmetal! Status: Offline Join Date: Jul 2005 Member ID: 31439 Pics: My Gallery Location: Redding, Ca Age: 24 Posts: 1,157	Re: Radio Locked Damn! Now that is some research! Good job "idbl Fanatic"

08-13-2005, 08:22 AM	#7
doe702 Registered User Status: Offline Join Date: Sep 2004 Member ID: 18084 Pics: My Gallery Location: san diego Age: 37 Posts: 41	Re: Radio Locked will this work with all new gm radios? you dont need to SPS program the system? thnx

08-13-2005, 01:43 PM	#8
98chevyZ71 Registered User Status: Offline Join Date: Aug 2003 Member ID: 8514 Pics: My Gallery Location: Oklahoma Age: 22 Posts: 114	Re: Radio Locked wow now i can go steal me some stock radios! no wait. why would anyone want a stock radio? 98 Silverado Z71 ECSB, Flowmaster, AIRAID, BFG 285s, and toolbox. Infinity Perfect 6.1s inside.

08-14-2005, 10:09 PM	#9
bigmark76 03arrival Status: Offline Join Date: Jul 2003 Member ID: 7593 Pics: My Gallery Location: texas Age: 21 Posts: 69	Re: Radio Locked Is there a way to unlock the navigation radio? 03 arrival blue silverado with a billet bowtie, flomaster 40 series dumps, a 3 in P.A. body lift, sticky mickey mud grappler radial and mickey thompsom classic lock 2's, and everything is painted to match.Just added in dash 6 disc.

10-25-2005, 04:51 AM	#10
bikernut Registered User Status: Offline Join Date: Sep 2005 Member ID: 34354 Pics: My Gallery Location: New Hampshire Age: 58 Posts: 15	Re: Radio Locked Does this work for all GM radios, my 1997 is locked and driving me crazy without tunes. thanks Last edited by bikernut : 10-25-2005 at 04:51 AM.

03-17-2006, 05:52 PM	#13
aldaran Registered User Status: Offline Join Date: Dec 2005 Member ID: 38959 Pics: My Gallery Location: Texas Posts: 66	Re: Radio Locked This does not work on 2003+ The display is "LOCKED" not LOC. Unfortunately, our local dealer couldn't unlock a radio I got on Ebay. **Update** Another dealer was able to unlock using their computer scanner. They simply deleted the old VIN from the radio and added mine. Apparently our local dealer was trying to unlock it the old way by holding the 2 and 3 buttons down. The cost was about $50 bucks when it was going to be free for doing it the old way. Anyway, my radio from Ebay works fine now. Last edited by aldaran : 03-19-2006 at 09:30 PM.

04-04-2006, 03:32 PM	#14
CrazyMack Registered User Status: Offline Join Date: Apr 2006 Member ID: 45120 Pics: My Gallery Location: Michigan Posts: 5	Re: Radio Locked Man am i glad i found these forums

05-15-2006, 10:22 PM	#15
netscaper Registered User Status: Offline Join Date: May 2006 Member ID: 47571 Pics: My Gallery Location: Hope, British Columbia Posts: 1	Re: Radio Locked THANK YOU "Fanatic" for your GM unlock post. IT WORKS GREAT.

06-06-2006, 01:44 PM	#16
tomdon23 Registered User Status: Offline Join Date: May 2006 Member ID: 48457 Pics: My Gallery Location: east Posts: 4	Re: Radio Locked if there is a mode button hold that down and press the power button on the 6 disc that should unlock it

06-24-2006, 08:12 AM	#17
rpdtony Registered User Status: Offline Join Date: Jun 2006 Member ID: 49862 Pics: My Gallery Location: raleigh, nc Posts: 1	Re: Radio Locked I'm trying to switch out a factory radio I got from a salvaged vehicle in my 2002 Trailblazer. The display says "locked" rather than "loc" and I tried holding down the 2 and 3 presets and got no response. Will I have to take it to the dealer? If so, how much will it cost?

07-15-2006, 06:17 PM	#18
Tafternoon Registered User Status: Offline Join Date: Jun 2006 Member ID: 49046 Pics: My Gallery Location: Texas Posts: 50	Re: Radio Locked I hate Theftlock.

08-04-2006, 09:02 PM	#20
willy victor Registered User Status: Offline Join Date: Aug 2006 Member ID: 52412 Pics: My Gallery Location: Il. Posts: 19	Re: Radio Locked Will this procedure work on an 01 Silverado. I bought the truck with 4000mi. on it and I don't know if anyone ever put a code into it. Eventually I'm going to need a new battery and I would like to get the radio working. Willy Victor

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