I had the same issue

Electrical connection.

My check coolant light appeared so I checked the level to notice I was a bit low.

So i went to my dealer and purchased Volvo coolant fluid.

Filled it up and about five minutes later the coolant was low again.
That happened twice.

I made it home and checked to see if I was leaking any fluid but ...

Do the locks just keep trying to go up and down.

I have a similar issue but it is due to my rear hatch lock.