Transmission Shudder Problems of Dodge Journey

I bought my new Dodge Journey on the 16th of July 2012. I live approximately 40 miles from the dealership were I bought my Journey. Most of my driving is highway so I didn't notice the issue right away. The first time I came to a stop with my new vehicle the brakes shuddered like they were grabbing then letting go and grabbing again, really fast. I returned to the dealership 4 different times for this and a transmission shudder which they say Chrysler has no fix. Is this something you have seen from Journeys before? thanks for your time.

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On 3/14/2012 (31,604 miles) while pulling out of a parking space the transmission started to grind and the vehicle lost power. The dealer found a stored code r1790 and reset the code unable to find further issue. Picked vehicle up on 3/15/2012 drove vehicle home. The transmission was noticeably slipping and we were told that it was performing "normally" continued driving the vehicle until. . . 4/18/2012 (33,133 miles) the transmission started grinding again, vehicle lost all power in heavy traffic where my son narrowly avoided being hit head on. Vehicle had to be flat bed towed to dealer, would not move under its own power. Multiple codes found: p0841 left rear pressure switch rationality p0733 gear ratio error in 3rd p0944 loss of pump prime p1790 fault inner after shift p0731/732/734 gear ratio 1, 2, & 4 p0846 pressure switch rationality p0838 lc pressure rationality. Found metal in transmission pan, disassembled and found bad planetary and damaged underdrive compounder. Replaced the compounder, removed the valve body and reconditioned and flushed the cooler. Vehicle was returned to us on 4/30/2012 and still feels like the transmission is not operating normally.

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