Traction Control System Related Problems of the 2006 Lexus IS250

Traction Control System problem

I have an Is250 for four years. In the last few days, I have experienced a vsc and check engine lights on. The car looses power and can't be driven securely once this happens. This had caused almost two accidents for me on the expressway as I drive about 40 miles each way to my office on a daily basis. Due to this problem and the security risk, I took the car to the dealer to get the problem fixed. I paid $100 just to check the car. The dealer said the problem was related with the springs on the valves that probably needed to be replaced. I took the car home as I did not have the $4k to repair this. On 7/5/10, I opened an incident with Lexus corporation and the very next day I saw on the news the recall on this issue. I followed up with Lexus on 7/6/10 about this and they stated they were looking into this. I followed up again on 7/9/10 (I called this time) and they said they would call me back but none called back so I took the car to the dealership as I felt it was happening more often and was very unsecured to drive. The dealer stated my particular model was not part of the new recall and did not care much about my safety. I sent a follow up email on 7/15/10 to Lexus corporation and they said again they would get back to me. I called again today as I have not heard back from them. Our security is impacted driving this car and does not seem that Lexus corporation is even interested into listening a security concern from a consumer at this time. Please let us know what we can do to get this security risk mitigated for my family and myself. Thanks.