Turn signals serve as a vehicle’s facial expressions, for they are used to indicate one's intention to make movement on the road, street, or highway. Without turn signals, confusion between drivers may arise resulting to road accidents, and perhaps, road fights. A typical turn signal system is composed of several turn signal lights, also called as blinkers, flashers, directional lights, or indicators. Signal lights are usually mounted at the corners of a vehicle. Most turn signals emit ether white or amber lights as required by the law. The turn signal system is also composed of several parts which include the turn signal lens. Volvo turn signals have light beam magnifiers. With this function, one can not afford to have blurred or scratched lens since this could cause turn signal lights to have poor and unfocused light beams.

Volvo cars were originally built with easily breakable glass turn signal lights. Most Volvo vehicles built since 1990 have polycarbonate lenses. This type of clear plastic bounces back from considerable impact, making it an ideal choice for the front of a vehicle. The problem with polycarbonate is its tendency to turn yellow and blur over time as a result of UV exposure. Although a poly carbonate is a very hard plastic material, it is also very permeable. Elements such as intense sun, heat, road chemicals, bugs, humidity and acid rain, combined with the heat of the bulb, damage the protective hard coat to the point that a ugly discolored, cloudy, hazy appearance develops on the lenses. A damage of this magnitude restricts the function of a turn signal lens and could diminish a turn signal’s efficiency by as much as 70 percent. Fortunately today, a number of products have already been formulated to remove this haze and clarify damaged lenses with minimal cost and effort. In most cases, replacement can be avoided. But in cases when the Volvo turn signal lens is damaged, immediate replacement is recommended.