One problem related to driveshaft has been reported for the 2005 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Toyota Sienna based on all problems reported for the 2005 Sienna.
I noticed a clunking noise when turning into a parking spot. It also felt like my van was diving into the parking spot. I took my van into Toyota for another reason and was told at the time it was leaking at the rack and needed a new drive shaft and boot to the tune of 1200 dollars. We are still debating what to do and are very disappointed in Toyota. We purchased this vehicle based on Toyota's reputation for quality but have found this vehicle particularly repair prone. We have already replaced the radiator, parking brake and had a very expensive serpentine belt replacement due to the fusion of dissimilar metals. It seems to me that Toyota's engineers should have understood the consequences of designing a vehicle with dissimilar metals that come into direct contact. We have never owned such a repair prone vehicle.