Identify one reason why a vehicle may experience electric system failures.

A vehicle may experience electrical system failures primarily due to faulty wiring or poor connections. The electrical system in a vehicle relies on a network of wires to transmit power and signals between components. If there are breaks, frays, or corrosion in the wiring, or if connections are loose or poorly made, it can lead to interrupted power supply or short circuits. This can cause a variety of issues, such as failure of lights, battery drainage, or problems with electronic control units, resulting in an overall decline in vehicle performance. Ensuring that all wires are intact and connections are secure is crucial for the reliability and functionality of a vehicle's electrical system.