How do you unlock the theft lock on a Chevy Blazer?

Answer 1

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 (account number invalid; 11/25/2008) 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.

answer B: i jus used this one and workerd just fine 03/02/2010

1. Turn the ignition ON (The radio should display "LOC")

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

3. The radio display changes from LOC to a three-digit number. Write this number down. You now have fifteen seconds to complete the next step.

4. Press the AM/FM button

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

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

7. Call 1-800-537-5140

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

9. Press 139010 or 106010 or 206010 or 202107 then # (pound). You will be asked to enter your four or six digit code followed by *

10. Enter the number from STEP 6 then *

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.

Dealership Codes

• 139010
• 106010
• 206010
• 202107

Troubleshooting

If you fail to enter the correct code eight times, the radio goes into INOP mode. You have to wait an hour with the ignition on before the radio returns to LOC mode.