Radio Theft Code
11-14-2021, 09:31 PM
#1
Racer
Thread Starter
Radio Theft Code
I have to replace my window regulator in my 01, and will have to disconnect my battery for the process. My question is, since i don't have the radio lock code. What do I do? Also, what other problems might show up by disconnecting the battery?
Thanks,
JW
Thanks,
JW
11-15-2021, 04:48 AM
#2
Uneducated overachiever
Are you sure it's locked? GM used to have an 800 number you could call to get it unlocked, but they discontinued it a few years back.
11-15-2021, 06:47 AM
#3
Moderator, Tech Contributor
Member Since: Sep 2013
Location: Cape Coral, Florida
Posts: 9,547
Received 2,136 Likes
on
1,701 Posts
I’ve had the battery disconnected many times on my 01 and never had the radio locked !!…you may have a little lopey idle until the PCM does its idle relearn…no big deal !!
11-15-2021, 11:32 AM
#5
Le Mans Master
Member Since: Dec 2017
Location: Virginia
Posts: 5,379
Received 3,112 Likes
on
1,940 Posts
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
I've had my battery disconnected MANY times with no issue.
The following users liked this post:
silverja (11-16-2021)
11-15-2021, 12:44 PM
#6
I've done both driver/passenger window regulators and didn't have any issue with the radio lock in my 2004.
11-15-2021, 02:58 PM
#9
Drifting
Read the owners manual it has all the information on this function. If you don't have it here a quick synopsis. If the radio has the theft lock enabled the theft lock light will flash on the radio when the key is out. If it doesn't flash then you are ok to remove power. If theft lock is set when you remove battery power you will have to unlock the radio with the secret code after power has been restored. You need the code to remove the theft lock function.
The following users liked this post:
frodo84 (11-15-2021)
11-15-2021, 03:02 PM
#10
Uneducated overachiever
Read the owners manual it has all the information on this function. If you don't have it here a quick synopsis. If the radio has the theft lock enabled the theft lock light will flash on the radio when the key is out. If it doesn't flash then you are ok to remove power. If theft lock is set when you remove battery power you will have to unlock the radio with the secret code after power has been restored. You need the code to remove the theft lock function.
11-15-2021, 03:46 PM
#11
Heel & Toe
I've had to reset my radio a few times. I used this guide that I found on another forum:
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 620529 then # (pound). You will be asked to enter your four or six digit code followed by * (star) [IF THE "620529" doesn't work, try 206053, 202107, 106010 or 202108.]
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.
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 620529 then # (pound). You will be asked to enter your four or six digit code followed by * (star) [IF THE "620529" doesn't work, try 206053, 202107, 106010 or 202108.]
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.
11-15-2021, 09:44 PM
#14
Drifting
11-16-2021, 11:24 AM
#15
Administrator
Member Since: Mar 2001
Location: In a parallel universe. Currently own 2014 Stingray Coupe.
Posts: 343,334
Received 19,397 Likes
on
14,026 Posts
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-
'20-'21-'22-'23-'24
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Probably because at some point Corvette owners realized that nobody wanted to steal a C5 radio and the owners defeated the lock function when they got tired of having to input the code when their battery died while the car wasn't being driven. So they just remove the code.
11-16-2021, 01:17 PM
#16
Instructor
Mine is currently LOC but . . . I've been so content just listening to and enjoying the engine/exhaust sound while I bomb around on back country roads that I haven't even thought about unlocking it 
11-16-2021, 02:01 PM
#17
Racer
Thread Starter
The following users liked this post:
JamesNC (11-16-2021)