Car Accelerates On Its Own problems of the 2007 Lexus IS250

I have a Lexus is 250 which experienced unintended acceleration. I have brought it to my dealer who found no defects and had no repairs for the known problem.

Wife's 2007 Lexus is 250 experienced sudden acceleration on the northbound 405 freeway in long beach California. After she accelerated onto the freeway she entered the fast lane and eased up on the gas pedal but the car continued to accelerate out of control with her foot completely off the gas pedal. She began pressing on the brake pedal in an effort to stop the vehicle, all the while the car was trying to accelerate. Luckily she was able to maintain control and moved over to the right lane, then onto the shoulder of the highway. She threw the auto transmission lever into neutral. She was then able to bring the car to a stop, even while the engine was racing at high rpm. She turned off the ignition and the engine stopped. We had the car flat-bedded to south bay Lexus in torrance, California where they gave her a loaner for the weekend and promised to have one of their mechanics drive the car over the weekend to see if they could repeat the problem. On Monday they called me and told me that they could not find anything wrong with it, telling me that more than likely the floor mat had gotten pushed up into the gas pedal mechanism. This is impossible if you look at the angle of the floor above the mats where the gas pedal is. My wife insists the mat was nowhere near the gas pedal. The dealer put a grand total of only 24 miles on the vehicle in the three days that they had it. Over the weekend my wife and I did some online research and surprisingly found a number of other people who have experienced the same problem. We traded the vehicle in on Monday, the same day we got it back from Lexus. My wife refused to drive it again. Now, we just found out that on August 28th, three weeks after our experience, California highway patrol officer mark saylor and three of his family members were killed when the Lexus ES 350 they were driving suddenly accelerated. Lexus is again blaming it on the floor mat.

2007 Lexus Is250. Traveling at 55 mph on hwy, hit cruise, car suddenly accelerated to nearly 105 mph by itself. Brakes unresponsive. Did not respond to putting in neutral. Had to place in park. Lexus blames on floormat interference. Driver disagrees. Cruise would not turn off. 911 called, advised to drive into field. 2nd time this happened since purchasing car in Mar 2009. Although car under warranty, Lexus refuses to pay. Insurance adjuster sent to dealership to inspect. Waiting on results. Consumer is adding photos. 7/29/09 received phote. Updated 08/05/09.