Lauren Wallace, 19, was found dead in a grassy area near the East Freeway and Normandy on September 5, 2010.
Police believe she was hit by a dark-colored, 2003 to 2005 Toyota Camry.
On Saturday, her friends and family returned to the area to pass out flyers and hold signs asking for information about the crash.
Crime Stoppers is offering $5,000 reward for information that leads to an arrest in this case. If you have any information, call 713-222-TIPS.