How to unstuck a transmission?

I'm have the same problem IV had an oil change reset my mile age and it still dose it I need the answer also

I had the same issue with my 06 impala. I had a mechanic drain the tranny replace the filter clean the pan that got it working for about 3mos.

I have an 06 Chevy Impala told the same thing I went to Walmart for $39 bought a car diagnostic and code reader together that way it tells you right then and there what's wrong with it and I'm telling you you'll save a bunch of money you just plug it in and it does its thing mine was the throttle body sensor

I want to leave this to everyone that has a Chevy Impala mine is a 06 police Impala turbo and I spent so much money on stuff that wasn't wrong that mechanics told me I finally went and got the car diagnostic and code reader at Walmart for $39 the best $39 I spent because all these questions is probably not your transmission a lot of it is the throttle body sensor it will mess up a lot of stuff up and people you need to get some sort of body spray and clean out the other side of the throttle body so anyone if we replace transmissions in the Impalas just get your own card Diagnostic and code reader and that's what it says on the package it's one machine one little machine