There are a few possible reasons for your 2010 Jeep Wrangler's headlights not working. One possibility is that the bulbs have burned out and need to be replaced. Another possibility is that there is a problem with the electrical system, such as a blown fuse or a loose connection. If you're not sure what the problem is, it's best to take your Jeep to a mechanic or an auto electrician to have it checked out.