Beeping.
Yesterday when I came near to a junction I put my cars indicator on and it worked fine as usual, but it also made this beeping noise, kind of like the noise a reversing lorry would make. The other indicator is doing the same, it's not loud, but enough to annoy me, it's coming from the back of the car on the passenger side. I told my OH who thinks with all the deep snow and muck something has gotten soaked and needs to dry out. In all the years I've been driving I've not heard of this, do any of you have any experience of it?