Reset clock/radio 2011 honda civic after battery cha

SOURCE: Reset 1992 Honda Civic radio code

The Unlock Code and the device unit's serial number are listed on the anti-theft ID card that comes with the vehicle. The card is usually placed in the glove box at the time of delivery. Use the Unlock Code listed on this card. For certain models, the dealer may have placed a label with the device serial number on the glove box. ----------------- If you cant find it, you need 3 things

1. Vehicle Identification Number (VIN)

2. Phone Number and Zip Code Information

• For security purposes, we(HONDA) verify ownership by comparing the phone number, zip code, and VIN you enter with those we have on file. Unless you have updated these values through Customer Services, the phone number and zip code will be those on file at the time the vehicle was purchased.

3. Device Serial Number

• you need the radio's serial number. since it is located on the back of the radio. your gonna need the pull the radio to get it.

Then CLICK HERE and enter the information for automated code retrieval.

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or you can pull out the radio, take it to the service dept. of a honda dealership and ask them if then can look up the code for you. they might ask you for your vehicles VIN, so you might wanna have that written down.
i always get a marker (Sharpie) and write the code on the top of the radio. that way you can't loose it.

SOURCE: BATTERY REPLACED NEED CODE FOR RADIO

You will need to take it to a dealer, They will have all codes on file under your plates.

SOURCE: need radio code for 1999 honda civic ex

Call the dealer but you will probably have to remove the radio and get the numbers from the back of the radio for the dealer

SOURCE: CODE RADIO HONDA CIVIC 2000

I CAN GO ONE STEP FURTHER. IT IS IN YOUR GLOVE BOX:) YOU JUST HAVE TO LOOK FOR IT:) IT A STICKER IN THERE NOT LABELED JUST A 4 OR 5 DIGIT CODE:)

SOURCE: battery ran down.now radio/clock don't work. flashes Error.can this be reset?

try taking the radio out and looking on the top for the parts number. call Honda and tell them what is going on and they will give you a 4 digit code that will reset the radio. i had the same problem with my 05 civic, did that and it worked for me.
good luck