The headlights on your Toyota Matrix have many uses, from low-beams for everyday driving to high-beams for extreme dark. A headlight can, for instance, function as a hazard light; put a couple together, and they become flashers. These can both signal distress and tell nearby drivers there's a problem or dangerous situation on the road nearby. Some headlights also feature low-glare fog lights, which are ideal for when you're driving through foul weather. Either way, whatever headlighting your Toyota Matrix has, it'll be one of three bulb types, generally. Halogen headlights are commonest. Xenon headlights, also called high-intensity discharge (HID), fit into narrow housings, so a lot of sports cars have them. LED headlights, you can find in many newer hatchbacks. They don't produce much heat, and they're more energy-efficient. So, what headlights does your Toyota Matrix need, exactly? That depends on what it came with from the factory and what your owner's manual says. When to change a car light bulb, however, depends only on what kind it is. Change Xenon bulbs as they weaken, roughly every three years. Change LED bulbs if they burn out or their electronics stop working. Change halogen bulbs every two years or so. Which headlights are the best, though? For a Toyota, nothing less than genuine. Your manufacturer designs them for its Matrix, for example, with mutual compatibility in mind. You can order them online at our auto parts store. Browse our wide selection and buy now. And don't forget the necessary light assembly kit!