Automatic Transmission Torque Converter problems of the 2010 Toyota RAV4

When driving the vehicle at approximately 40-50 mph, in 4th gear, a vibration or shudder is felt in the transmission. It is a slight loss of power. It can be felt intermittently as long as you are holding a constant speed. If you manually or automatically shift down it stops, but as soon as you maintain speed again it will come back. It doesn't necessary matter which roadway you are driving on. From my understanding there is a malfunction in the torque converter. A "lock-up clutch" design flaw in the damper plate and springs. This is already a known issue for some models and recalls have been issued. It is becoming a bigger, more wide spread issue and the recall needs to be expanded to include all models with this problem.