The "run flat" tires on my 2005 Sienna have completely worn out to the extent that the steel treads are showing, with only 11,000 miles on the car. Obviously they are very defective.

- Brooklyn, NY, USA

I have a 2005 Sienna xle AWD, and the tires failed at 20,016 miles (the tread was completely gone on the interior side of the two front tires). I had the tires rotated at 4,472 miles and 11,048. However, all 4 tires show excessive wear for this amount of mileage! the tires are factory-issued dunlop run-flats.

- Flagstaff, AZ, USA

Extremely rapid tire wear on dunlop run flat tires that were original equipment on a 2005 Toyota Sienna AWD van. The tires have been rotated several times. At less than 17,000 miles at least one is down to the wear markers. The others are not far behind. I have discovered that this is ongoing issue for nearly all owners of these AWD vans. These are very expensive top of the line tires. Now a days 40,000 + miles is the norm! I can't believe that a $33,000+ vehicle is sold legally with such inferior equipment tires!.

- Colchester, CT, USA

The problem occurred with a 2005 Toyota Sienna that I have owned for approximately one year. At 24,000 miles on the car (mostly highway driving) the front 2 tires were completely bald and the rear tires had almost no tread left on them. The cost for replacement tires was approximately $900 which included a $100 credit per tire from dunlop. I refused to put those tires on my car again since I have three small children and can neither afford the cost or the risk to their safety with inadequate tires. Dunlop will also not provide any sort of warranty on their new tires. The cost of new tires (non-runflat) was approximately $450. In addition to the four new tires we also had to obtain a spare tire and wheel and purchase a new jack. There is now a loose tire sitting in the back of our van that can be a safety hazard if we are ever unfortunate enough to be in a severe accident.

- Woodland Park, CO, USA

I own a 2005 Toyota Sienna AWD. At 7500 miles the front tires had excessive wear, now with 9000 miles the dealer is recommending me to change all 4 tires. Currently I am negotiating with Toyota to pay for the tire replacement. They have offered little assurance to help and no commitment for future problems. I know this is a major problem with many AWD Toyota owners. Toyota needs to be held accountable/responsible.

- Steamboat Springs, CO, USA

I have a 2005 Toyota Sienna xle AWD which is equipped with dunlop run-flat tires. This car was used for one year and had mileage of 17,800 when we noticed that all four tires had the tread barrier exposed. It was exposed only on the outside and inside edges of the tires. The car was handling extremely strangely and was starting to wander on turns. This weekend changing lanes the car started to wander into an on-coming traffic lane when changing to the left lane of a four lane road. I contacted Toyota only to be told that there was no mileage guarantee on the tires and they were $250/piece to replace. When told that they nearly caused head on accident they quickly offered to replace two of them free and then I could repair the others. They still would not guarantee the tires for any future mileage. I have since gone on the web to find that these tires have been reported by a huge number of the owners to have a similar problem. I do not think we should have an accident to find out that a tire has an identified safety problem. These tires do not wear correctly, they wear much too fast, and the Toyota service rep at my dealership told me that we should run the tires at a higher than recommended tire pressure to help. The NHTSA should get involved in this matter before others are harmed or killed.

- El Dorado Hills, CA, USA