I have a 07 Touring with just over 19,000 miles. My master warning light came on, so I took her to the local dealership (DCH Toyota Torrance). Codes came up related to the inverter. After spending 3 hours evaluating, they told me that they could not determine what the exact issue was (within the inverter system) without doing a "Full Hybrid System" evaluation. They also determined that the car had been in a serious front end collision. The front end damage was not visible in the posted photos, discolsed to me nor did it show up on my carfax report. Due to the accident damage, they stated there's a low likelihood that they could make whatever required repairs under warantee. To their credit, the did not charge me for the 3hrs of evaluation and the Service Manager did drive my car for around 12 miles after clearing the codes to see if the light would come on again. Due to the evidence of front end damage, he did suggest that I try to get the dealership I purchased from to buy back the car. He said the steering didn't feel right either - he stated that it felt tighter than it should. It does sometimes make a quiet creaking noise when turning, but not very often. Any input would be greatly appreciated.