So recently, I had disconnected my battery in order to clean the heads. After reconnecting the battery and turning the ignition on, I realize that my radio reads 'CODE'. I reach into my glovebox for the 'Anti-Theft Radio Identification Card'. As it says in the manual, use the preset keys on the radio to enter the five-digit code. I entered the five-digit code shown on the card but it keeps saying 'ERROR'. I also have a serial number for the radio which is listed right under the 5-digit code. I contacted the Acura dealer but today is July 4th, so no chances in getting the issue solved at the moment. Anybody have any what's wrong? Could've the radio been replaced? I recently purchased the car.

 

Please do a quick search on this topic of "radio code"

Anyway, here is the link to one of the way to fix the issue.
https://acurazine.com/forums/2g-tl-problems-fixes-117/radio-code-doesnt-work-602128/


Some said driving around few minutes then enter the code, or go to underground parking garage to enter the code will also work.