There are a few things you can do to get coffee stains out of car seats. The first is to use a mild soap and water on the stain. This will help remove any oils or dirt that may have been on the seat. The second is to use a dryer sheet and place it over the stain. This will help to dry the stain and remove any excess moisture. Finally, you can use a vacuum cleaner and bucket to suck up all of the liquid that has been spilled onto the seat. This will help to clean up any spills and remove any coffee stains from your car seats.