That is a security "feature" on GM radios to deter theft. The following instructions has had sucess with other GM vehicles. If not, only a dealer has the equipment to get past lock screen.
This works on vettes with theftlock. Try it on the tahoe and let us know....
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 on page 3-27 in your Y2K Owner's manual. Use the code from STEP 11 instead of your personal code. Note: This tip originated from LOTZAHP, Austin TX (credit must be given where credit is due). I verified it on an Y2K C5 with a locked radio - mine.
http://chevroletforum.com/forum/tahoe-suburban-25/help-radio-locked-8220/
SOURCE: how do I unlock radio for a 2004 gmc sierra
yes that is correct, was hoping you didn't need to do that, they charge for this.
SOURCE: 2003 cts cadillac need unlock code for radio cd
call cadillac or maybe even gm dealer and give them vin number
gm dealer ask for martin @ 281-929-3250....houston tx
SOURCE: I need the unlock code for a 2001 Chevrolet Blazer
need to notify dealer show receipt for radio and have serial number and if able radio id code and owner ship of ur vehicle the dealer should be able to retrieve the code but call first they will advise u if u need any thing else
SOURCE: I just bought a 1996 acura tl. It has an acura
Try this: If you have jumped or replaced the battery at anytime this will happen. You have to get the serial number off the radio by removing it or partially taking it out to see the numbers on it try not to remove any cords. With the stereo out (to make sure you get the right number off of it) call an Acura dealership with the number and they will give you the another number to enter into the stereo and directions on how to punch the numbers in. Make sure while you have the stereo out you write the serial number down and keep it in a safe place also the number that the Acura dealership gives you because if you sell the car or if it happens again its easily accessible. Good Luck!
SOURCE: Tape stuck in player - error code e13 shows
I just got a tape unstuck myself. Everytime I would hit eject it would make a clicking noise.
Here is what I did:
First I watched these videos to remove the radio.
http://www.youtube.com/watch?v=29MTa4FLjtk&feature=channel
http://www.youtube.com/watch?v=fqvk_PNo9Kg&feature=channel
Then I unscrewed the bottom panel of the radio.
Unscrew the brass screws holding in the cassette player portion of the radio.
Now flip the cassette player over to see your tape, etc.
When I pressed the eject button, I noticed a little motor with a worm gear would move a a gear which moved several other gears until it eventually moved a black gear which has a little post that moves the metal arm which moves back when pushing in a tape and moves forward when ejecting a tape. But I would get a clicking sound which seemed to be due to one gear trying to move a stuck gear.
I forgot the exact details of how I managed to get the tape out, but when I did get it out I noticed when I turned on the radio, it would act like it was trying to play a tape. But when it found out it couldn't, it would try to eject but would fail once again with the gear clicking sound.
I think I tried moving the black post on the black gear that moves the arm that pushes the tape out. Eventually I got to the point where the arm was pushed forward like it should be when a tape is ejected. At that point I was able to insert and eject a tape without any problems.
344 views
Usually answered in minutes!
×