So I am supposed to go to the dealership tomorrow to have the DRL recall fixed, but they also said there is a firmware update for the ecm, for the onboard diagnostics. Quite honestly I don't want my computer messed with but I thought I would see what u guys think, never had one done before, got 214,000 miles on it and no CEL, so it kind of makes me wonder what may happen with the upgrade. Should it be done if there is no reason for it to be done.