The idea that short tripping can be bad for engine oil, is it also a problem for automatic transmission fluid.
A co-worker that lives 7 minutes from work and otherwise does not drive much had a problem. His 2001 4-cylinder Acura that he purchased new just hit 55K and the automatic transmission failed. He changed the engine oil every 3K miles at the dealership express line but never had the transmission serviced. He is a very conservative driver, parks the car inside a garage and washes and waxes the car frequently. It looks great all the time. In other words, this car is not abused by hard driving has never seen snow or cold weather and not a lot of rain.
He had the transmission rebuilt instead of having a used or other rebuilt transmission installed.
Was this a short tripping failure or just bad luck?