Pontiac Grand Prix - 2004 Fuse Box Diagram Pontiac Grand Prix - 2004 Fuse Box Diagram. Home; Pontiac; Grand Prix - 2004 Fuse Box; These are some examples of vehicle symbols you may find on your vehicle: v. Circuit breakers in the fuse panel protect the power. windows and other power accessories. When the current. load is too heavy, Interior Fuse Box Location: 2004-2008 Pontiac Grand Prix Click to view0:09The video above shows how to replace blown fuses in the interior fuse box of your 2004 Pontiac Grand Prix in addition to the fuse panel diagram location. Electrical components such as your map light, radio, heated seats, high Author: Honda City Fuse Box Diagram > Pontiac Grand Prix (2004-2008) Fuse box diagram (location and assignment of electrical fuses and relays) for Pontiac Grand Prix (2004, 2005, 2006, 2007, 2008).