Car Will Not Accelerate problems of the 2001 Toyota RAV4

The transmission suddenly began slipping and jerking when accelerating from a stop or while in low gear and shifting from a low speed. I became aware of the ecm problem known to occur in my make and model of Toyota upon calling the dealership; however, I am being told that the warranty only covers ten years from the date of purchase (I purchased my car 11 years ago) despite the fact it is known that the ecm, the computer that controls the transmission, is defective and causes transmission problems. This is a dangerous problem as the car will not accelerate and the transmission slips. It is difficult to understand how Toyota cannot ethically cover this knowing it is defective and is probable to cause owners problems in the future, regardless if it's 8, 10, or 12 years down the line.