2005 Jeep Liberty Trans temp light

Oil light comes on then several minutes later the brake pedal becomes very rigid and then the jeep doesn't want to move. If I wait 3-4 hours I can start the car again and it may drive fine for a week or so. Took it to several transmission specialists and car did not duplicate the problem after ten test drives. No codes or lights ever was received by the diagnostic services.. Took it to dealership they reset the engine oil light and couldn't find any problems. I paid 110 dollars to change transmission fluid it worked fine for several weeks but now it seems to be doing it on a weekly basis. Took it to local auto parts store to see if the code could be read and they said it wasn't communicating with the brain. Car shifts and drives perfectly until this problem occurs. It's been to 5 local shops but no one can duplicate the symptoms. Please help