I changed my battery and the code that wasgiven to me years ago for the radio did not work. Is there a solution to this problem?

 

You have to get the serial number off the radio's back and call the dealer. If you give them the serial number, they'll give you the code.

 

Was your head unit ever replaced? If so, dealer should have gave you a new card. There are two sets of numbers on the card, you sure you entered the correct set?

 

I found that if you register at http://owners.acura.com/
they will provide the code for you on-line.
I haven't tried this, but this is what is stated.
Let me know if this is successful.
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I tried the code that the dealer gave me, which was inside the owners manuel.

 

Call the dealer and give them your VIN code. For most vehicles that's all you need to do, you don't need to remover the radio.

 

Welcome to the forum! I see that you did receive some answers in Car Talk, however, your best bet for TL related discussion is to visit the TL section of our site.

I have moved this there for you. If you own a different generation TL, please advise and we will move the thread accordingly.

Also, please feel free to search in the TL section. While the answers above are accurate, you may be able to find additional information on your topic as it has been discussed in the past.

Again, welcome to Acurazine!