I looked around here but didn't find this problem.
I have found power steering fluid on the ground and a damp hose coming up to the reservoir bucket from below with the factory clamp. I replaced the clamp, wiped it all down and a day later there are signs of continued seepage from the clamped hose end .

I have since read of failed reservoir buckets (cracks) but don't see one here so far. Is it still likely to be the cannister? The car is in the upper midwest and gets extreme temps year-round.

Thanks for any help.

 

It could be either or the hose or the bottle.

 

I've just had the same problem. But I took it to the dealer. Can't answer your question, but dealer said they've never had this problem until this week (extreme temps also, down to -30C) and they've had 4 this week. I know the dealer hosed me (no pun intended) but was $188 for them to fix two clamps and clean out the system. Normally they only find one clamp has gone. You should check out all the clamps. (just my 2 cents worth).

 

I have the same problem except I am pretty sure the reservoir is cracked at the upper seam. I ordered a new on online for around $60 and just got the fluid shipped last week. I too am in the upper midwest, I am waiting for some free time and warmer weather to take it all apart.