After my airbag light came on, I took my car to the closed Toyota dealership. I was advised by Cobb County Toyota that my airbag is defective and needs to be replaced for $2400. Since my 2006 Sienna has 76k miles on it, Toyota wouldn't cover it under the warranty. I asked how an unused airbag could be defective, I was told that it is an electrical component. That was the complete answer. So, I checked online. And, sure enough, hundreds of people all over the country are facing the same problem with their 2006 Sienna. And, no one has been able to explain the reason. I called Toyota's corporate office and the (no) customer service rep said that all she could do was document my concern. No manager could call or assist me. No one could send me a letter stating why an unused airbag is suddenly defective after only 4 years. No one cares. I get that. But, it doesn't make logical sense that something as important as an airbag would become defective for no reason after a couple of years. This is my second and last Toyota...even though I'm sure no one cares.