Category: Cars, Tech, Products

While upgrading your rear lighting, take the opportunity to bring your headlight system up to the same modern standard. Your new LED tail lights and sequential turn signals will look fantastic, but they will feel mismatched if your front headlight and turn signal lighting remains dim, yellow, and outdated. The 2005 GMC Sierra’s factory headlight housings use 9005 and 9006 halogen bulbs, which produce weak, yellowish beams that struggle to illuminate dark roads.