Stranging warning buzzer
 

Two days ago I saw evidence that a rat had been in the engine bay of my 2013 GT86.

All fluid levels in the car appear to be normal

There is no evidence visible of wires having been chewed.

When I start the car I get an audible alarm which I have never heard before

It is a 4 second high pitched noise followed by two very short high pitched noises

No warning lights come on

Any ideas.

the noise
https://streamable.com/mjljg4

Headlights "on" alarm?

Is there anything on your passenger seat? Anything at all?

This usually happens if the relay on the passenger seat is defective or it gets wet (Happened to me after detailing the seats).

Did the rodent get into the car and chew some wires there?

UPDATE

Got the auto sparky to run a diagnostic and this is what came up... all other systems normal... hopefully this solves it... will let you know