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  • How to Reset a Kenwood Security Code

    Four digit security codes protect Kenwood car stereos from theft. If a thief steals a Kenwood car stereo, he/she will not be able to use the stereo until the secret four digit security code is entered.

    Unfortunately, many legitimate owners are also locked out of their Kenwood car stereos due to these security codes. This typically happens to people who buy used cars from people who forget to share the security code. However, it also happens to people who simply forget their security codes after several years.

    Common Kenwood Security Codes

    Many Kenwood radios are configured with the same security codes:

    • KCAR – This seems to be a “backdoor” to some Kenwood models.
    • 3051 – This is the security code that is printed in many Kenwood model manuals.
    • 1234 – This is a security code that Kenwood owners commonly choose.

    Entering the Kenwood Security Code

    If the car battery fails or is disconnected, the Kenwood will ask for the security code.

    The procedure for entering the security code differs on various models of Kenwood car stereos. Here are three of the more common procedures:

    Type 1

    • During the code request mode, while pressing the DISP key, press and hold the Volume UP or DOWN key for 3 seconds until the “…” display disappears.
    • Enter the security code with the Kenwood remote.

    Type 2

    • Press the “Auto” button and “Track up” on the face of radio at the same time until the four dash lines disappear.
    • Enter the security code with the Kenwood remote.

    Type 3: Model# DPX-4020 and DPX-4030

    • Press and hold the 1 then the 6 preset keys until the display shows the letter C.
    • Enter the security code with the Kenwood remote.

    Entering Letters with a Kenwood Remote

    To enter a letter with a Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter. Press the Track Up or Next Track key to send the letter.

    To send the letter A, press the 2 key once then press the Track Up key. To send the letter B, press the 2 key twice then press the Track up key.

    Finally, when all of the letters are entered, press and hold the Track Up button for 3 seconds.

    The key sequence to enter the security code KCAR is:

    • 5
    • 5
    • Track Up
    • 2
    • 2
    • 2
    • Track Up
    • 2
    • Track Up
    • 7
    • 7
    • Track Up

    The Kenwood should then enter tuner mode.

    A Security Code Bug in Some Kenwoods

    There is a reported bug in the security code handling of some Kenwood stereos. In models with the bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

    In models with this bug, decrement the third character of the security code by one. For example, if the security code is 1111, enter it as 1101. If the security code is 9999, enter 9989.

    Finding the Kenwood Security Code

    There are backdoor codes for each Kenwood car stereo, based on the model and serial numbers.

    Find out how to reset the code or what the common backdoor codes are here (among solutions).

    Sending the RadioBack to Kenwood

    If all else fails, send the stereo back to Kenwood to have the security code reset.

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    1. Hajrudim

      15 July, 2017 at 8:20 pm


    2. Jainul mustofa

      24 June, 2017 at 5:36 pm

      Berapa Reset kode DIVX DDX 3035

      • Jainul mustofa

        25 June, 2017 at 5:19 am

        Mobil saya mobilio prestight th 2014 habis saya tune up, nyalain audio kok ada security kode set, pertanyaan saya berapa kode securitynya?

    3. Kemar

      15 February, 2017 at 1:49 am

      I have a 2011 Subaru Legacy Touring. I had spilled drinks in my radio and it stopped working. However it has started to work now but a message comes up on the display with the words caution and the rest in JApanese. It plays music and everything just cant access the display.

    4. Daniel Kolpa

      16 January, 2017 at 4:14 pm

      Anyone know code for ddx4028bt?

    5. Daniel Kolpa

      16 January, 2017 at 4:11 pm

      Any one now the code for ddx4028bt please

    6. Christian kingsley

      10 February, 2016 at 2:44 pm

      my kenwood audio dnx7200 after many atempt to input the code is shoeing me waiting code. pls can anyone help me on what to do

    7. Antonio

      22 October, 2015 at 7:49 pm

      DDX814 anyone know how to bypass the security code?

    8. Seydo Karadayi

      8 October, 2015 at 7:51 pm

      KENWOOD-DDX4028BT Monitor with DVD Receiver S/N 116X1835

    9. Pure4us

      18 September, 2015 at 8:00 am

      I have an older model of the Kenwood kvt-614 and none of these solutions worked for me!! FML

    10. sotonio paul

      6 September, 2015 at 12:25 pm

      I have a DPX1600MD,i don’t know the code #, and i can not reset it

    11. Hüseyin baycuman

      4 March, 2015 at 5:47 am

      Kenwood code ddx 5026 model caw 2230-17

    12. Quaqueux

      6 November, 2014 at 7:22 pm

      DNX5240BT série : KE1550X0900801
      Help, I can not find the reset code!
      Who can help me?

    13. nduch

      16 August, 2014 at 11:52 am

      anyone to hep on ken wood hvd8.radio security code

    14. Ahmed Raza

      14 June, 2014 at 5:22 pm

      Please help me I have DDX7034BTM it’s shows security code

      • Corky

        18 August, 2014 at 7:47 am

        I have a kenwood DDX6017 it’s locked I need a code to unlock it can someone help me ?

    15. mac

      12 June, 2014 at 6:28 pm

      Can some one help me

    16. mac

      12 June, 2014 at 6:28 pm

      Have a Kenwood dnx5120 can’t get it unlocked

      • calvin

        20 July, 2014 at 1:01 am

        Did u ever get it unlocked I have the same stereo locked

      • tony

        19 September, 2014 at 3:38 am

        I have the sae problem with my kenwood dxn5120,can it be reset

        • jeff

          14 December, 2014 at 6:51 am

          hi did you unlock your stereo please teach me how i have same model dnx5120

      • neil

        10 August, 2015 at 4:17 am

        has anyone found a way to unlock the dnx5120?

    17. SAna

      12 June, 2014 at 3:57 am

      i have a kenwood hdv 910 ,pls guide me how to adjust the time in thz navi system?

      • calvin

        20 July, 2014 at 1:00 am

        Did u ever get it unlocked I have the same CD/DVD locked

    18. Noel a marquez bernal

      5 September, 2012 at 9:09 am

      I have a kenwood dmx5120 i need
      Code set

    19. Bianca Vo

      14 April, 2012 at 11:36 pm

      I have keneood mode KDC- BT838U.
      How can I resset the code pleas help me

      • Jerry Baker

        11 April, 2017 at 12:07 am

        I need the code to the dnx5120

    20. Martha

      25 March, 2012 at 7:41 am

      I have an kenwood DDX616 and when i connect it on the screen it says PROTECT and on the top left it says Error Protect. How may i fix that problem i would appriciate if any one could help me PLEASE!

      • H3llas

        29 September, 2013 at 8:58 am

        This means that the speaker wire has a short-circuit or touches
        the chassis of the vehicle, and then the protection function is activated.

        Wire or insulate the speaker cable properly and press the reset button

    21. Mark

      23 February, 2012 at 3:22 pm

      Hi I do car radio repairs for new and used car dealers for 28 years. My customer just got a car with the dnx7120 nav radio in it. The customer who owned the car before did not leave the code in the car and now the radio is locked out. Is there a reset way to unlock the radio?

    22. Tito

      26 January, 2012 at 11:53 pm

      >>/6/TUN all at the same time worked for me

    23. lorrainejohnston

      20 January, 2012 at 1:21 pm

      i have noted somewhere that it is something with faulty wiring check this and then try
      resetting it.

    24. Mike

      4 November, 2011 at 11:50 am

      kenwood KDC_247, has the word protect. I gave tried reset button but no joy.

      Any other suggestions would be appreciated

      Thank you

      • lorrainejohnston

        20 January, 2012 at 1:22 pm

        supposed to be faulty wiring check this and then try resetting.
        might help.

    25. adrian sweatman

      15 October, 2011 at 9:48 am

      Hi guys, I am after the security code for my cd player. It is a GM Blaupunkt No:92 084 568 Type: SYS 1 , 568, BP2240 2 1645594


      Really need this code, please hurry and get back to me, thanks
      Optional Information: 
      Make: GM Blaupunkt No:92 084 568
      Model: BP2240 2 1645594

      Already Tried: 
      finding the original box with the security code written on it – no luck

    26. jonathan

      26 September, 2011 at 2:18 am

      Hi i have  question i have kenwood dvd dash and its asking for set code its there anyway you guys can help me? and this happen when i chage my car battery… thankz have a nice day…

    27. pascal

      13 July, 2011 at 6:00 pm


      ik heb een kenwood kdc-506 alleen geen beveilegings code er meer bij
      hoe kan ik die er resetten of nieuwe invoeren
      of waar moet ik de radio heen sturen zoals boven is vermeld
      mail maar grunnpoker@live.nl


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