How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GMTechBernard Your Own Question
GMTechBernard, Shop Foreman
Category: Buick
Satisfied Customers: 2158
Experience:  GM
Type Your Buick Question Here...
GMTechBernard is online now
A new question is answered every 9 seconds

My radio (I had a dead battery and do not know the code)

This answer was rated:

I need help getting the the "loc" code to go out on my radio (I had a dead battery and do not know the code).

Hello! The procedure requires two steps.


1st step, retrieve the 6-digit code from the radio. This is done by pressing and holding buttons 2 & 3 simultaneously until a 3-digit code appears on the radio display. Write that down and it will change to another 3-digit code, for 6 digits total. Post up what the 6 digits are. I have to contact GM with that code to retrieve the unlock code.


2nd step. Once you post the 6-digits and I retreive your unlock code, you will need to use the HR (hours) button to enter the first two digits of the number and the MN (minutes) button to enter the last two digits and once the code is in, hit AM/FM to enter it and it should unlock.


So all I need you to do now, is perform step 1 and post them here, so that I can retrieve your unlock code. Thanks!

Customer: replied 7 years ago.
tried the 2 and 3 still reads "loc"
Customer: replied 7 years ago.
are you still there?
Are you pressing and HOLDING the 2 & 3? If you hold it, sometimes up to 30 seconds, it should display a number. If that still doesn't work, try 2 & 4
Customer: replied 7 years ago.
ok be right back
Customer: replied 7 years ago.
still nothing.......even tried both combos twice
Customer: replied 7 years ago.
any ideas or do i need to go to the dealer?
The procedure is the same for many models, but to be sure, let me get the year/make/model of your car.
Customer: replied 7 years ago.

2001 Buck LeSabre Custom radio code is UPO

Are you sure this is the stock radio and all that happened was the battery went dead? On 2001 LeSabre's, the vehicles VIN number is XXXXX into the radio. This was done so that the radio wouldn't lock up everytime the battery was drained or disconnected. When the system is powered back up, the radio compares its programmed VIN to the vehicles VIN and if they match, will allow for radio operation. If they don't match, the radio goes into "LOC" mode. It is not common (I won't say impossible) for a radio to loose its VIN with just a dead battery, but if that is indeed the case, then it MUST go to the dealer, since it requires the factory scantool (Tech2) to program the VIN into the radio.


I'm sorry I made you do all that other stuff. When you stated the radio "LOC"ed after the battery went dead, I assumed you had the older Delphi Theftlock radio, since they are the only ones effected by battery disconnects.

GMTechBernard, Shop Foreman
Category: Buick
Satisfied Customers: 2158
Experience: GM
GMTechBernard and other Buick Specialists are ready to help you
Customer: replied 7 years ago.

I will bring it to my dealer for sure Monday morning. I accepted your response so you can get paid for your time. thanks for trying (maybe something wrong with the radio, or worse). Thanks again for the try.



Customer: replied 7 years ago.
thanks again
Thank you for the accept and good luck! The procedure with the scantool only takes a few minutes, so they may charge you the mininum diagnostic fee (whatever that is), but definitely don't let them charge you an hour labor (unless there really is something wrong that needs diagnosed)!

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
< Previous | Next >
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
  • He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here. Diane Dallas, TX

Meet The Experts:

  • Dave Nova

    Dave Nova

    Buick Technician

    Satisfied Customers:

    ASE Master Certification. GM World Class Certification
< Last | Next >
  • Dave Nova's Avatar

    Dave Nova

    Buick Technician

    Satisfied Customers:

    ASE Master Certification. GM World Class Certification
  • Pete's Avatar


    Buick Technician

    Satisfied Customers:

    17 years Buick Technician experience and training.
  • Gary's Avatar


    Buick Technician

    Satisfied Customers:

    15 years master GM tech and mater ASE tech
  • John's Avatar


    Buick Master Technician

    Satisfied Customers:

    ASE A1-A8 w/L1 GM master technician.Factory certified with 40 years experience.
  • George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    ASE Master 15+years
  • Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Buick Mechanic

    Satisfied Customers:

    GM, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
  • Ron Z.'s Avatar

    Ron Z.

    - Buick Tech -

    Satisfied Customers:

    18+yrs experience. State Inspector and Buick Diagnostics