4-second 'brain freeze' - seizure?

Yesterday while driving I had an episode where I suddenly felt like my brain 'lost traction' - my eyes worked, but I suddenly didn't know where I was, or where I was going. This lasted about 4 seconds, then my knowledge of my whereabouts and destination came back to me. This was on a route that I travel all the time. Does this sound like a seizure? I've never had anything like this before.