I have a new Tribeca with a little over 6000 miles. The problem is the transmission shudders when shifting from second to third gear at times. It is acting as if it can't quite make the shift and moves back and forth until it finally finds it.
My guess at first was the software that creates the shift. I took it to the Subaru dealer for the 6000 mile oil change and they were able to recreate the shudder. They erased and reloaded the memory in ECU and performed some other tests like line pressure, etc.
The problem still exists and I called the Service Manager to advise him. He is going to check with Subaru to see if there are any other reports of the problem.
Has anyone else encountered this problem in a Subaru transmission? What is happening is a little hard to describe, but as I said, it seems as if the transmission can't find third gear and is shifting back and forth rapidly trying to shift. I thought that maybe a valve is not opening or closing or a spring is not functioning properly, but I haven't worked on an automatic transmission for about 45 years and I believe that they have changed a little in that time.
Don Dunlap