Saab 900 Lights Available Here. You have surely noticed that there are several lights on the interior and exterior of your vehicle. These serve to make you safer and make it possible to see better in lowlight conditions. The bulbs that illuminate them will burn out on occasion, prompting the need for replacement bulbs. It is also possible for the covers to get damaged and need to be replaced. If there are issues with any of the lights on your vehicle, it is important that you make the right fix or replacement as soon as possible. This ensures that you are safe on the road and have the lights that are required by the law.