Originally Posted by My03Accord

These units can remember up to 4 remotes. So programming another one will not make it forget the one lost. Rolling codes just makes it harder to copy a frequency. If she lost her remote delete the other transmitters As well and reprogram yours and the new one you just bought. Yes use the instructions from the brain. you'll be able to delete remotes from brain instructions as well. If you need I can get the instructions when I go to work in the next 45 min.