It seems to happen when we get a good day or two of rain that when i lock my van up a couple mins or more later the alarm goes off until i unlock with keypad. Don't have time and money to go to honda to get it fixed. Didn't no maybe there's a certain place water is getting in triggering alarm.im sick of having to wake up to go out side and take the horn relay out just to keep from pissing off neighbors thanks for any help ben :)

i don't have such problems, but sounds it's the security system, what about to have it changed?