Question about Kenwood KDC-BT742U

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Unlock code for kenwood kdc-bt742u

I recently got this car from a dealer ship and the radio will not play or take c-ds, it turns on but it just keeps flashing "code". is there a default i can put in there to make the car work, and how do i get that code? i called the kenwood customer support line and they were of absolutely no help.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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shagone
  • 34 Answers

SOURCE: Cannot remember my security code after reset Kenwood kdc-mp435u

Try code KCAR entered from the remote. 3 entry methods are detailed below.

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 which is printed in the manual of many Kenwood models.
1234 - This is a security code commonly chosen by Kenwood owners.
Entering Your Kenwood Security Code
If the car battery fails or is disconnected, the Kenwood will ask for the security code.

The procedure to enter your 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 holding the DISP key depressed, press and hold the Volume UP or DOWN key for 3 seconds until the "..." display disappears.
Enter the security code using your Kenwood remote.
Type 2
Press and hold the "Auto" button and "Track up" (next track button on the right) on the face of radio at the same time until the four dash lines disappear.
Enter the security code using your 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 using your Kenwood remote.
Entering Letters on your Kenwood Remote
To enter a letter using your Kenwood remote, press a button once for the first letter, twice for the second letter, and three times for the third letter -- then press the Track Up or Next Track key to send the letter.

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

Finally, when you are done entering all of the letters, 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
Your 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 thie bug, the security code is stored incorrectly. The workaround is to enter the wrong security code.

In models with this bug, you have to decrement the third character of the security code by one. If your security code was 1111, you would enter your security code as 1101. If your security code was 9999, you would enter 9989.

i hope this works for you.

Posted on Jan 09, 2009

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SOURCE: how to program radio stations on a kdc-bt742u

Get to your station then hold the preset button you want to set it to for about 5 seconds, it will beep confirming you have it programmed

Posted on Nov 05, 2009

iamdefiler
  • 50 Answers

SOURCE: How do you adjust the bass and treble on the

Here is the link to the instruction manual for your head unit.

http://www.kenwoodusa.com/UserFiles/File/UnitedStates/Consumer/Manuals/kdcbt742u.pdf

There are a number of places it mentions adjusting bass and treble levels.

Posted on Jan 10, 2010

  • 652 Answers

SOURCE: I JUST FINISH INSTALLING MY KENWOOD KDC-BT742U AND

if everything works corectly, it could be a bad unit, you may need another

Posted on Feb 14, 2010

  • 40 Answers

SOURCE: Kenwood kdc-bt742u flashing protect and no sound

If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage, or a bare wire touching the body of the car

Posted on Mar 25, 2010

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