I think it could be: Several electrical components stopped working at the same time; both power windows, interior cab dome light, 2 bed lights (which is wired to dome light) & under hood light. I have heard when this happens, usually other things quit working too; wipers, wiper washer, radio.... but i didnt have these problems. Looked in dash fuse panel at lower Driver's side left. Battery Saver Relay fuse #14 (blue 15A mini) was blown. Problem solved unless it blows again, then i will have to deal with a short somewhere. What is the Battery Saver Relay all about? Symptoms are the same just need to locate battery saver relay fuse???