The rfa has been replaced in the last six months by a corvette specialty garage. I was having comm error messages and a seat memory problem as well as tmps problems. They said there diagnosis showed a "sick" rfa and replaced it. Afterward all the problems stop except the tpms problem. I replaced all of the sensor. I got them from Tire Rack but checked the part number at schrader an they verified that they were the same as the ones they supply GM with out GM markings. Now, after a long drive (about 45 min) the right front stops I get a readou on dic and xxxx when I check press. After the car sits for awhile, couple of hours to aday, the sensor comes back. Seems to stay unless I drive a long distance (time). I just tring to eliminate possibilities so I want to be sure the rfa that was replaced was the right one. Oh and Ive replaced the right front sensor twice.