Fuse blown how to replace?

For a catastrophic failure such as this, where the vehicle is completely dead, check your battery and battery cable connections first. Make sure the cable connections are clean and tight at both ends of the cables. The underhood fuse box will have a couple of very large, MAXI style, fuses. One of them, usually a 100 AMP fuse, will be the main fuse for the whole vehicle. If that blows you have a serious short or possibly you hooked up jumper cables backwards, or something along those lines. Hope that helps! Jim