Things that go Beep in the night

My taco beeps almost every night between 9:30 and 10:00 . I recently discovered it also does this at other points during the night. It is a series of 6-8 quick soft beeps. Not full-on blaring, just bee-bee-bee, etc so fast we have never agreed on exactly how many beeps.

Otherwise it seems fine. The poltergeist in the radio has even quit tuning it for me lately.

The beeping has me stumped.

Ideas?

GrannyGear

 

Welcome to TW! Do you have an aftermarket alarm installed?

 

I have the Toyota installed one. The dealer put it in. I didn't notice it on the options list cause I sure would not have paid for it!