We had no problems until 65,000 miles. Since then, the transmission busted ($2,300 for a rebuilt trans.) and both sliding door handles have broken (around $330 to fix for both). All tires had to be changed at 15,000 miles and again at 40,000. Definitely some alignment issues. A good car, but quality control seems to be becoming an issue for some Toyotas. That said, I'm considering replacing this with another Toyota (RAV4), so I guess it goes to show I've not given up on Toyota's perceived reliability.
Serves its purpose if you're looking for a minivan.
Extend the warranty to match other car makers - 100,000 miles is a good sales incentive.
I have owned this Sienna from day one, and so far w/95000 miles it has lived up to the reputation of Toyota by being the most reliable van I have owned. Have there been problems, sure, but minor: rear brake squeal and sliding power door sensor. Other than routine service, it's been a pleasure. Hope to have it another 7 years w/200,000 miles!
We bought this as a certified used van in 2003 w/28k. It now has 103k and still going strong. This has been a great van. The interior space is a little smaller than our old Previa was, but it has been ok. Since we have owned it we have had very few repairs beyond normal service. The window guides had to be replaced at one point and we had an O2 sensor replaced. The leather is starting to show signs of wear, but generally still in good shape. Gas mileage has been about 18 in the city and 23-24 on the highway (I drive fast). I would buy this van again with no regrets.
Reliable, comfortable drive on trips, good gas mileage.