Automatic Transmission Problems of Toyota Scion Tc

My 2005 Scion Tc surges/lurches forward when resuming from a stop. The amount of pressure you apply to the gas pedal has no effect on how the car is going to move forward. The problem was very intermittent and hard to notice but started happening more and more often as of Aug. /sept. 2008. In mid sept. I almost rear ended the car in front of me taking off from a stop light. I took the car to the selling dealership and the service mgr. Went on a test drive and said he noticed the problem at least 5 times in a few mile drive. When I picked my car up 2 days later the service invoice stated "unable to duplicate" and it was recommended I have a 30,000 mile maint. Done I had just had those services done 1 month earlier and they were aware of that. It was then recommended that I switch gas stations and use high octane fuel and use a fuel injection cleaner purchased from any gas station, then if no improvement further diagnostics would be needed but no codes in the ecu. I followed the recommendations for over 2 months and no change. Went back to the same dealership and was told nothing could be done and even with an extended warranty the regional service mgr sent to "inspect" my car did not inspect it and refused to authorize the repair and submit the claim under the extended warranty. I also at this time reminded them that the speedometer does not work all the time. And when it doesn't work and the car is idling the speedometer shows a speed of 5-10 miles per hour, yet while driving shows a speed of 0. I also pointed out that the drivers side pillar airbag cover they fixed weeks ago is hanging loose. It comes off every time you shut the door. This has been repaired at least twice before. They refused to acknowledge this problem as well. My car has or is having about 95% of the items displayed in your service bulletins, seatbelts,airbags,fuel injectors,window controls,sun roof,air condition and tire pressure monitor system. And the dealership aware of all of them.

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2007 Scion Tc standard automatic. The rpm will decrease by about 2 numbers randomly while driving. Speed does not seem to be a factor. Happens about every other day. This in turn causes my car to slow down when I do not want it to. Is an issue when I am driving on the interstate in heavy traffic.

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Automatic transmission hesitates to shift gears everyday. Dealer states they cannot duplicate the issue. This started about a month ago (11/05). Paint chips on front of vehicle as well as scratches in the paint. Only drive on paved roads and highways. Noticed this within three months of having vehicle (05/05).

In stop & go bumper-to-bumper traffic, my client took her foot off of the brake of 2005 Toyota scion xa, and car accelerated on its own. After crash, client could not shift car from drive into park position.