Question about 2000 Chevrolet Blazer

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The radio is lock after battery change. I don't remember the code.

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  • Chevrolet Master
  • 3,854 Answers

Try 0000 and if that doesn't work you can go to the dealer and they can un lock your radio, call first for the price, if it's a crazy amount, go to www.radio-code.com. They can help you reset your radio for less then the price at the dealer if the dealer has a crazy price. Good luck and hope this helps.

Posted on Jun 15, 2009

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Posted on Jan 02, 2017

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  • 176 Answers

SOURCE: locked radio

You have to go to a chevy dealership to have them unlock the radio. They use a special code that will unlock the radio and then allows you to pick a new code. Hope this helps.

Posted on Apr 02, 2010

  • 15 Answers

SOURCE: Can't remember radio unlock code

Dealer can reset this for you, for a fee of course.

Posted on Mar 15, 2009

  • 21 Answers

SOURCE: 2004 honda odessey radio code

Need to reenter the radio code, it's normally located in the glove box or behind the radio itself, once found you should have about 3 tries to enter the code, if more attempts are needed, disconnect the neg battery cable for 5 minutes and retry.

Posted on Feb 08, 2010

witserv
  • 144 Answers

SOURCE: My radio is locked with theft protection and I

Yes should be in owners manual as a stuffer, but can also be gotten at the dealer if you bring in proper identification and vin # etc (or the car!)

Posted on Aug 30, 2010

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2 Answers

Change the battery in my 2007 Hyundai Sonata and now my radio won't work how do I get a code and put it in?


Hyundai Tiburon Questions - how do i reprogram my lock ...

www.cargurus.com > Questions > Hyundai > Tiburon

CarGurusAug 17, 2009 - how do i reprogram my lock remote to my car? i changed my battery an ... i change my battery an now my lock an un lock buttons dont wor. ... I have aHyundai 2003 Tiburon, and the following worked for me, get in your ... The unlock codeis inside the case. ... Now my radio interior lights and clock wont work.

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Hyundai cars & trucks replaced car battery now radio doesn t questions and answers ... replaced my battery,, now key remote radio & clock does not work.. thank you ... ...car If you didn't do this before you replaced the battery, then there is another code ... I put a new battery in my 2003 sonata and now the radio doesn't work.

Jan 06, 2016 | Hyundai Cars & Trucks

1 Answer

I put in the wrong code for the radio in to many times after changing the battery in my 2000 Odyssey, I now know the code for my radio but the device is locked and i need help unlocking it.


Just wait one hour and it will reset and you can then try it again. You have ten chances. If for some reason you start to put it in wrong again, just put in any digits as if that were the 5 digit code. If you don't complete, it will lock again and you will need to wait another hour. I hope this helps and good luck.

Jun 29, 2011 | 2000 Honda Odyssey

1 Answer

Please after changing the battery of my VOLVO v40 1999 wagon car the radio requested code can you help me


This is a anti-theft device built into your radio designed to foil robbers. When the radio looses power, the radio locks up. This makes the radio worthless on the black market. The thieves know this and don't steal it as a result. Your owners manual tells you to clear the code if there will be a power loss (changing the battery). There may not be a recovery procedure.

In the GM (1995) version of this system, there is no recovery (if there were, what would be the point of the system?). I don't know the specifics of the Volvo system. You may want to talk to your dealer before you replace your radio. I am sure you will have to prove ownership of the vehicle.

Thanks for your question @ FixYa.com this morning.

Jun 21, 2011 | 2000 Volvo V40

1 Answer

My mom has a 99 malibu with a v6 in it i replaced the battery and now the radio displays LOC on the time clock and the radio doesn't work at all since then


There is a lock on the radio in case it was stolen. A code needs to be entered. I'm afraid I don't remember the procedure for your radio but am going to guess that if you looked in the glove box through the paperwork for the car like the owners manual, you will find the code in there most likely written down. I do hope there are some instructions with it for your sake on the process of how to enter it. I wish i could help you more as far as how to enter it but at least you know the radio isn't broke and this is all it is. Good luck.

May 07, 2011 | 1999 Chevrolet Malibu

2 Answers

Just brought car, private sale, car sat for a year, new battery replaced before car sat. Owner states radio was working, but now it doesn't. What can I do?


its most probably in LOCK mode..

its a anti theft device..and yes, the radio locks up..WHEN THE BATTERY IS CHANGED..or when battery power is lost (ie dead battery)..

check the owners manual, for the code, or ask the previous owner if he know s the code..or lastely...and i hate to say it...go to dealer..

hope this helps..

let me know

Apr 03, 2011 | 1999 Volkswagen Passat

1 Answer

Changed battery, radio is locked. i remember the code is 824 just don't remember how to start the process to enter code.


Call a Chevy dealer.They will tell you for free.This happens so much,what a waste of technology.Good luck! Greg

Aug 31, 2010 | 2000 Chevrolet S-10

2 Answers

Changed battery in 1995 Camry and radio is in lock mode


Dealer should give you code, if you explain it the way you just did.

Jul 01, 2009 | 1995 Toyota Camry

1 Answer

After installing a new battery, the radio does not work


hello,for your radio,you need a radio code,if you don"t have ask your dealer to provide the code,alarm system is always activated when you lock the vehicle,ty

Apr 18, 2009 | 1997 Mercedes-Benz C-Class

1 Answer

Can't remember radio unlock code


Dealer can reset this for you, for a fee of course.

Mar 13, 2009 | 1998 Pontiac Grand Prix

1 Answer

Radio locked


I had the same problem with my 1999 Sonoma. try this:
(You must be in your truck with a cell phone handy)

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.

Hope it helps.

Sep 10, 2008 | 2000 Chevrolet S-10

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