Originally Posted by BurnsSide42
My wife's current 2006 had the same transmission issue. Eventually it started throwing a TCC Mechanical Lock Up Fault code. I bought a used low mileage trans for $200 with a broken torque converter (salvage yard stored it badly and sheared of the stub shaft somehow) and bought a rebuilt one for $300 - so $500 for the trans and I put it in and it's been good since.
I didn't have a transmission issue
I did look into it and a low mile trans would be about a grand installed. Good to know for the future.