At first, I have the tire pressure indicator light continuing to lit up. Then one morning, the van was slow to response to shifting gear and acceleration. After stopping, it won't start and move into gear at all. There was no engine light being lit or warning sign. Towed to shore Toyota at mays landing, NJ. They told me that the transmission oil had all leaked out due to the burst of abrupt failure on the inlet to the radiator. They asked me to replace the radiator at a cost of $1,150.26! after repaired, they then told me that the transmission is bad and difficult to move into gear. They quoted another $3,780 to replace the transmission. I was furious. Since that the dealer told me that the van can be driven. I was prepared to trade it in and weighing my options. The van has 133,279 miles. I drove it ok initially, however, I experienced that it was difficult to accelerate twice. After 15 miles when I stopped at a traffic light, the van just stuck- it cannot move in any of the gears at all. I towed back home. After cooling down, it was able to drive again. The new transmission fluid smelled burnt. I am wondering why: "why the engine light was not lit up at all when the coolant temperature was so high before spoiling the whole transmission? ?why was that not even any dtc codes stored on the obdii systems at all after all these defects? ?this seemed the same problem as the sticky transmission that other customers have been complaining about, yet Toyota has not informing the customer of any actions need to be take. I have been receiving notices about the various recalls and the potential of monetary compensation, however, nothing has been realized yet. "this seemed to be a very dangerous situations, if the van can be slowed down or stopped so drastically, the people in the vehicle could be bumped over.

- Hammonton, NJ, USA

The contact owns a 2006 Toyota Sienna. While driving approximately 65 mph, the vehicle began to vibrate uncontrollably. The contact was able to stop and exit the vehicle. The contact inspected the vehicle and noticed that the front driver side tire was shredded and detached from the rim. The contact stated that the tire warning light did not illuminate indicating there was a failure. The vehicle was towed to an independent mechanic where the tire was replaced. The vehicle was then taken to the dealer for diagnostics. The technicians advised that they were unable to diagnose the failure of the system. The vehicle was not repaired. The approximate failure mileage was 80,000.

- Hillsdale, NJ, USA

The contact owns a 2006 Toyota Sienna. The contact stated that while driving approximately 20 mph, he noticed that the vehicle would pull to the left and that there was a vibration. He then drove 3 miles to a service station and that the front passenger tire had a split. The tire pressure monitor system had not illuminated on the instrumental panel. There was no spare tire available due to it being all-wheel drive. The vehicle was then taken to a dealer and advised him that there were unable to diagnose the failure. The failure mileage was approximately 54,000.

- Bristol, CT, USA

2006 Toyota Sienna AWD. Purchased 12/06. Had to replace all 4 run flat tires 3/08. On 8/13/09 tire pressure monitoring system light came on. On 8/14/09 took vehicle to dealership which confirmed tire pressure was okay on all 4 tires and light was turned off. On 8/15/09 driver side front tire went flat while driving; hot to touch, smelled like was burning, but no fire. Light never went on. Vehicle was immediately towed to dealership. On 8/17/09 tire was replaced and picked up vehicle on 8/18/09 and light was off. By end of day on 8/18/09 light was back on.

- Scituate, MA, USA

Our 2006 Toyota mini-van low tire pressure light keeps coming on, even though we have just had new tires put on, reset it several times and verified that the tire pressure is good in all 5 tires. We are not sure if we should trust it or not and feel this is a potential safety issue. It has 41K mi and the Toyota dealer was rude and said would only say bring it in for a $95 diagnostic. Checking the web there are a lot of folks with the same problem....lots of forums.

- West Olive, MI, USA

This report is for my mother in law's 2006 Toyota Sienna xe AWD minivan with the dunlop runflat tires. This minivan has had 2 "defective" tires on it since it's purchase and with less than 8000 miles on the tires. Both tires were replaced by the dealer, but we continue to have tire/pressure problems. I believe both tires were ruined due to the pressure sensing system not detecting low pressure in the tires and causing the side walls to collapse after continued driving. Luckily, nobody has been injured, however if driving at high speeds with this system a potential exists for a severe accident. I have spoken with the national Toyota and local dealer, and they continue to not address the problem. The dealer has stated in writing that the pressure system is functioning properly, however runflat tires on this system do not register low pressure until multiple tires or a single tire has hardly any pressure in it. The local dealer manager agrees with me that the runflat tires with the ABS type pressure sensing system is not a safe system. I have requested to have regular tires installed on this van so the pressure system can detect low pressure, however Toyota will not change them for me. I feel that having runflats as installed by the manufacturer on this type of pressure system can eventually lead to an accident when a low tire blows off the rim at a high speed, causing the driver to lose control. With the runflat tires, a driver cannot visually look at the tire and detect that it is low, due to the thick sidewalls that allow them to "run flat". this is a safety issue that I believe Toyota should address and correct before somebody is killed. I live in Alaska and my mother in law frequently makes trips to anchorage, where fuel/service stations are hundreds of miles apart and -50F weather is common. Please feel free to call me to discuss further as the local dealer and national Toyota seem to be passing this off. Thank you. Regards, peter marvin

- Fairbanks, AK, USA