The idea of limp mode is to prevent catastrophic damage to the engine or trans, or to save your bacon if a serious saftey hazard arises. If it does revert to limp mode, a vehicle should do it slowly enough, and after a benign warning period, that the driver can react and get to a safe place first. Things like burned out brakelights should never trigger that kind of thing, only display a warning. Other things, like a burned out taillight fuse, should trigger a warning but do not. If there is one thing I'd like to see refined and adjusted on the Spyder, it is this one.