How to enter radio codes

Step 1: Look at your radio. Check and see if the code "RDS" is written on the face of the radio. If "RDS" is present, contact a GM dealership to have your radio unlocked by them.
Step 2: Check for the identification code. Press buttons 2 and 3 for 8-10 seconds. If a code does not appear on the display, you won't be able to unlock your radio in this manner.
[If that doesn't work vvv]
In order to obtain your radio unlock code, you need to find your radio's serial number. You can get the radio serial number directly from your radio.
Step 1: Turn on the ignition. Turn the key to "accessory" mode or "on" mode.
Step 2: Turn on the radio. Press the power button to turn on the radio.
If your radio displays any functions such as playing a CD, cassette, or a radio station, your radio is not locked. If no sound is heard, you may need to replace your radio unit.
If your radio is locked, "LOC" is displayed on the screen.
If "INOP" is displayed, keep your ignition on for 60 minutes with "INOP" on the display. After the hour is up, it should change to "LOC." After this you can proceed with the next step.
Step 3: Write down the code. Press buttons 2 and 3 at the same time and hold for 8-10 seconds. Write down the three-digit code that is displayed.
Step 4: Note down the code. Immediately press the AM/FM button. Another three-digit code is displayed. Write it down as well.
This is your six-digit radio serial number.

Now that you have your radio's serial number, you can obtain the radio unlock code from General Motors. Be ready with a pen and paper to write down your radio unlock code.
Step 1: Contact the GM radio hotline. From any landline or cell phone, call the toll-free GM Radio hotline at 1(800) 537-5140.
Step 2: Enter the code. When it requests a code, enter "106010" on the keypad, followed by the pound (#) sign.
Step 3: Enter the radio serial number. You will be prompted to enter the radio serial number you have just obtained.
At the prompt, enter the number followed by the pound sign.
Step 4: Write down the radio unlock code. The prompt will read out your four-digit radio unlock code. Write it down precisely.

Now that you've obtained your Chevrolet radio unlock code, you need to enter it into your radio.
Step 1: Switch on the radio. Turn your ignition on and press the radio power button. Your radio will display "LOC."
Step 2: Enter the first two digits of the radio unlock code. Press the hour button on the radio to enter the first two numbers of your radio unlock code.
Continue pressing the button repeatedly until the first two digits of the radio unlock code are displayed.
Step 3: Enter the last two digits of the unlock code. Press the minute button until the last two numbers of the radio unlock code are displayed.
Repeatedly press until they match the two digits you need.
Step 4: Confirm the code. When the code matches, press the AM/FM button. "SEC" will display on the radio, indicating a successful attempt to enter your radio code.
If you enter the code incorrectly eight times, the display will switch from "LOC" to "INOP." You'll need to leave the ignition on for an hour as described in Part 2 before you can retry.
Write the radio unlock code in a safe place such as in your owner's manual for future use.
Most car dealers will charge you a lot of money just to get the code for you. If you follow the right steps, you can get the code for free and be able to start listening to the radio again in just a few minutes!
How to Unlock Chevrolet Theftlock Radio

We just unlocked a 98 Volvo S-70 radio,on the front,you have 2 slots across from each other,use you finger nails or a dime to get it to come out,then you can pull it out,then get the serial number and write it down,then put stereo back in,then get your vin number,it's on your insurance card,then call dealer and ask for your radio code,they will ask for vin number and radio serial code,if your radio says code,then you can enter it,ifit says off,then it's locked,you have 3 tries till it locks and it says off,if it says off,then you turn key to number 1,turn radio on,wait 2 hours,then it will say code,then enter code and radio will unlock,our code is 5513 if you want to see if it will work for you.Here's a link to you owners manual,read about the radio code,same as our's,but the dealer will give it to you free. 1994 Volvo 850 Watch this video. How To Find Volvo Radio Code 850 960 S70 C70 etc

Replace the radio or use workshop manual 2 unlock the code

It should be a numerical code. Just punch it in on the radio using the programmed station buttons. It won't give you any indication that you're entering the code, but when you put it in, the radio will 'unlock'

You need to enter a radio code to reactivate your radio. When the fuse was pulled, it cut the 12 volt to the radio and the radio anti-theft came on. Try entering 0000 to unlock you radio, if your radio does not take any more entries. Disconnect the battery again for 1 min and reconnect and then you can reenter codes again, if the code is not 0000. You can go the dealer and they can reactivate your radio, but if they want a crazy amount. Log on to radio-code.com, there is a fee but it's like $24.00. good luck and keep use posted.

If you are refering to the Theft Lock code, you must first push the right sequence of radio buttons to enter the un lock mode in the radio's computer. Once the radio's Theft Lock Identifier code is displayed, you then enter the un lock code into the radio. Ususally, this is a dealer operation as they have the online program to retrieve the unlock code after they submit your Theft Lock ID code. I'm wondering how you were able to get a unlock code without the dealer's assistance.

InOP - Too many wrong code attempts have been entered and the radio must be left powered on for one hour with the battery and ignition applied before three more attempts can be made. Entering only the correct code will unlock the car radio. here's your answer . cheers

if you have your code and need to know how to enter the code , it should be as follows .

Unlock procedure for six digit codes. Push the "Hr" button, 000 will appear in display. Press the hour button until you match the first number of your unlock code. For second two digits of unlock code press the "Min" button until numbers match. When first three digits of unlock code is entered into display, push the AM/FM button. Repeat the above process for second set of three numbers of unlock code.

if you need more assistance, post comment before voting thanks .

you have the unlock code or the gm code? here is how to enter your 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

to enter your code when the cd player displays error leave cd player switched on and after 20 mins or so i will display 0000 then you will be able to enter your code this happens when some 1 has entered the wrong code