The main reason why your vehicle is equipped with a lot of lights is that each of these lights, or pair of lights, performs a function distinct from other auto lights. The fog lights of your car, for example, performs a different function from the headlights, even though both are mounted at the front end of the vehicle and both tries to illuminate the road ahead of you.
Unlike your vehicle's headlights, the fog lights emit low beam lights that can aid the headlights in illuminating the road during extremely low visibility conditions like when driving on a foggy road or when driving on harsh weather conditions. The low beam light that fog lights emit can easily pierce through the fog, snow, and rain while other lights, including your vehicles headlights, would simply bounce and would rather make the road look fuzzy. Fog lights, thus, make driving during bad weather conditions a lot safer.
Most Chevrolet vehicles come standard with Chevrolet fog lights upon purchase. Some, however, are not equipped with fog lights but they come available as optional equipments. Aside from stock and original Chevrolet fog lamps, there are also aftermarket Chevy fog lights that you can purchase and install on your Chevy, in case your vehicle does not come equipped with one. These aftermarket Chevy fog lamps are especially helpful for older Chevy vehicles whose original parts are already rare and no longer being manufactured.