The alarm problem I've had with this car is annoying but seems to be less frequent these days and is tolerable. However yesterday my car emitted a high pitched, low volume, warning type sound from the rear nearside corner behind the rear light. Well that's what my son and neighbour told me and it sounded for about an hour - no flashing indicators or anything so from the houses it didn't appear to be a car noise. I was away in another car but fortunately my lad had access to my keys (I don't think he'd drive it!) and was able to switch the sound off by unlocking the car.
The only noise of that type I have had is when it's telling me to put it in 'Park' - it's a semi-auto.
Any ideas?