Does anyone have thoughts on error codes P2637 and P0700? My automatic transmission downshifts really hard. Almost like I am slamming on the brakes. And it jars forward in my seat. The SES light has disappeared now, and I took it to the dealership. But they say they can't duplicate it.

Honestly, I don't know why they just won't replace or fix whatever the problem is. But I was wondering if anyone else had this issue and what had been done to fix it.

I'm getting:

P0700 Transmission Control System (MIL Request) Malfunction

and

P2637 Torque Management Feedback Signal “A”

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