I had something unusual happen last night. I was driving down the highway when suddenly my GPS and stereo lost power (I have a powered GPS mount that piggybacks off the stereo power supply) and I got traction control and security alarm warnings on the dash. I also thought at the time that my automatic headlights went off, but looking back I think it was just the stereo touchscreen going out that startled me. I pulled over in a nearby parking lot and started to checking to see what still worked. Other than the warnings, the only things that were non-functional were the stereo and GPS. I turned the truck off and back on and the warning lights went out. The stereo and GPS remained non-functional for the drive home, but everything else worked fine. This morning I pulled the fuse for the stereo and checked it...it checked out ok. I re-installed the fuse and started the truck and everything, including the stereo and GPS, are functioning normally. Does anybody have any ideas as to what happened? Is it possible that the fuse had worked loose just enough to break the circuit and I inadvertently fixed it by removing and re-installing the fuse? If so, why would that trigger the traction control and security alarm warnings?