horn beeps randomly

[mtndew1313]

I have a 2003 Camry LE with the remote for lock/unlock/trunk and panic.

I have noticed a few times before (over what seems like quite a while) that I'll hear approximately 11 beeps of the horn out of nowhere. It's a pretty fast beep, about as fast or even faster than I could go if I beeped the horn myself while seated in the car.

At first I only noticed it at night and I assumed it was some neighbor's annoying car alarm since I live in an apartment.

Only recently did I hear it while I was at work during the day and realized it was my car.
I wasn't able to see the car when it happened, so I don't know if the lights flashed or not.

Any thoughts?

[ShawnM]

Is there an aftermarket alarm system on it? I may be wrong but I think all 03 LEs came without alarm systems from the factory. Even the audio lock and unlock indicator dosent go through the horn so your issue sounds a little strange.

[mtndew1313]

There is no alarm system.