The fuse box is often found in the dashboard or in the bonnet.
Fuses are used to protect the electrical system from overloads.
If you find one or more blown fuses it will be necessary to understand the cause and replace them.
In an emergency it is a good idea to keep some spare fuses in your car.
One of the reasons that lead to blown fuses may be the malfunction of some component or water infiltration in the system.