About a year ago I was driving down the interstate when my car started beeping at me. I took it into a dealership, but the beeping had stopped and they were unable to find any problems with the car. After that time my car will intermittently beep at me for no reason. The speed has no effect, no controls (such as heat, air, radio, etc.) matter, and yes, other people have heard it

For the most part it is a quiet, low continuous background noise. Occationally it will be a door, seatbelt, warning chime. Again there is no pattern. A few times its even been a loud continuous beep. It doesn't happen everyday by any means. Sometimes it will be months without it happening, then it will happen a few days in a row (and the outside tempature seems to have no effect).

Anyone have any bright ideas on what this could be? Ever heard of anyone else having this problem?
Yeah, I get no light comming on when it happens and all my lights are working correctly (had that checked).

The only work I've ever had done to my car is replace the igition switch. But the sound happened before and after that.

It probably started when you washed the carpet or spilled a drink under the drivers side floor because the chime box is just above the level of the carpet there.When it gets wet the cuircuit board for your door,ignition and headlights and some other options for most cars...it'll get a green like look across the electrical motherboard we'll.....then its toast(junk)YOU may remove it yourself if you can locate it by turning on your ignition switch and waiting for the chime and follow the noise to it is all....then use a screw driver behind it and you'll see it looks like an average plug end from an extention cord..just pull straight out.....Good luck

Sounds like it,s haunted but stay focused. There could be a bad connection on the horn boss something shorting the horn button to earth that,s if it,s a horn noise you are hearing or a fault on the engine management warning side

Maybe a bad seatbelt sensor? Does the seat belt light go on when it happens? There is a way to disconnect the Seatbelt warning. It should say in your manual. If not Do a search for it on Yahoo. it should pop up fairly quickly.

It could also be your key-in sensor maybe it has some kind of malfunction. Try to Jiggle it around when it happens.

Its the only things I can think of

Good Luck

[EagleAutosports]

Does any light come on when it beeps? It could also be the airbag diagnostic.