How to Replace Your Car's Fuse Box | YourMechanic Advice A fuse box, also known as a fuse panel, organizes all of the car’s fuses in one area for easy access. Your car’s fuse box holds a variety of fuses with different ratings and most likely several relays. It is located under the hood in the engine bay, typically somewhere easy to get to that is less likely to be damaged in a collision.Author: Jessica Howe How Much Does a Car Fuse Box Cost? | HowMuchIsIt Aug 09, 2018Replacing a fuse box in the car. During the repair, the battery will be disconnected and fuse box will be located. Most fuse boxes today are either located under the hood or underneath the dashboard, near the steering wheel. Inside the fuse box will be a large red cable, referred to as a battery supply cable.