For the last couple of days I have noticed that I have water dripping from the engine area of my after I park or stop. The dripping appears to stop after some duration (usually don't wait to how long it persists) but I don't recall seeing this the earlier in my ownership (first 12 months of owning 2010 Prius). It clearly appears to be water as it has no color or scent and when it dries, it leaves nothing behind. The only change that comes to mind is that I have been using the front defroster which I did not use before. It is not due to using the air conditioning, as I don't use it during the AC during the winter months at all. Any ideas?? Bob
The air conditioner compressor may run when the front defroster is activated, as this helps to dehumidify the cabin air.
Your PC Prius info says you have a 2010 on order. I assume this is the one you're asking about; i.e. you've had it for a while?