The Standard Ignition LS 202 SI Back Up Light Switch is engineered to ensure the proper operation of reverse lights in various Chevrolet and GMC models enhancing safety and visibility during reversing maneuvers This switch is crafted with Original Equipment OE quality standards guaranteeing reliable performance and a precise fit for a range of vehicles including the Chevrolet Astro 1985 1986 Blazer 1995 1999 C10 1981 1986 C1500 1994 1997 K1500 1994 1997 and the GMC C1500 1981 1986 K1500 1981 1986 Sierra 1500 1999 2002 and Yukon 1992 1995