I'm a bit embarrassed to ask this, but are 2013 Impreza fog lights supposed to be always on with the headlights? I ask because our model does not have the separate fog light switch. We are only thinking about this now because a check engine light came on recently and the mechanic told us it had to do with the fog light bulbs having burned out. The Owners Manual talks about a separate fog light switch "(if equipped)" but says nothing about the fog lights when not equipped with the separate switch. It just seems odd to me to have the fog lights always on.