Lighting in automobiles is considered a crucial system as it provides safety and convenience while driving. In modern vehicles, it is also an important styling feature. The automotive lighting system includes lighting and signaling lights located on the front, sides, and rear of a vehicle. CVs, including light CVs (LCVs) and medium- and heavy-duty CVs (M&HCVs), use a wide range of lights for various functions. Headlamps that have low beam and high beam functions are mainly available in halogen and LED lights. The other widely used lights are reflectors, tail lamps, brake lights, side and turn indication lights, safety brake light or center mounted stop lamp, cornering lights, front side lights or parking lights, daytime running lamps (DRL), fog lights, reverse signal light, license plate light, clearance lights, and side marker lights. Currently, all these lighting units use LED lights that are smaller, consume less energy, and are versatile.