The baro warning happens normally on SV initial power application shortly after the baro is set. I think it is suppose to compare the last set baro with the current baro. If so, it works "as designed". On initial power up I think it is comparing the last flight baro with the current baro, which can be several hours or days old. I would prefer that it not work "as designed" on start up, only after a certain amount of time after initial power is applied to the SV. Dan from Reno.