Automatic Transmission problems of the 2004 Toyota Corolla

I am having what could be a serious problem with my almost new Corolla 2004 automatic transmission with only 8000 km. If I leave the car parked for say more than a week, I then start it, and try to go forward or in reverse the car takes (lags) like 5 or 6 seconds to sort of engage the gear. At first it sort of like starts to go but not fully (slips) and after that it goes solid. I hope you understand my explanation?? dealer has performed the hydraulic test, reset the memory, and changed the atf oil. It seems that perhaps one of the internal valves tends to leek or is not able to retain the pressure over time. The car has now 15000 km. And the problem is getting worse. It takes more time to fully engage into gear. I can see how a serious accident can happened if the person driving the car is not aware of this issue and will try to accelerate to get the car moving and suddenly loose control over a sudden unwanted acceleration. I was never contacted before and I hope someone in your department takes seriously this information. The previous complaint (odi number) was 10187863. Thank you.

On feburary 12, 2010, my 2005 Toyota Corolla was parked and running, while I brought groceries into my home. When I went back out, I discovered that the vehicle had rolled backwards into a ditch causing damage to the under carriage of the vehicle and muffler. This is the first time that this incident occurred and nothing has been done to correct problem.

The contact owns a 2004 Toyota Corolla. While driving 75 mph he noticed a sharp sound coming from outside of the vehicle. After a few minutes, the vehicle suddenly stopped on its own. The vehicle was taken to the dealer where the contact was informed that the transmission needed to be replaced. The current and failure mileages were 90000.

I am having what could be a serious problem with my almost new Corolla 2004 with only 8000 miles. If I leave the car parked for say more than a week, I then start it, and try to go into reverse the car takes (lags) like 5 or 6 seconds to sort of engage the gear. At first it sort of like starts to go but not fully (slips) and after that it goes solid in to reverse. I hope you understand my explanation?? dealer has performed the hydraulic test, reset the memory, and changed the oil.