 Bought the Sienna after my Caravan died 4 years ago.  I hate to say that this Sienna has been worse maintenance- wise than my Caravan.  I'm on my third set of brakes, my power door locks have all been replaced and my A/C compressor went out twice.  Every time I take it in to have the power door locks fixed they look get this look on their faces like it's the first time they've ever seen the problem although a friend of mine who works at a Toyota dealership told me it's been a fleet wide problem for years to include the same 4 Lexus door locks I've had replaced.  Now my left CV joint is clanking. The staff at the dealership acts like they work at Rolls Royce or something. Frustrating.