The Yellow Alert program was proposed by the California Department of Transportation to establish a system designed to coordinate public alerts following a major injury or fatality producing hit-and-run collision. Sufficient vehicle information would be displayed on a changeable message sign (CMS) to either avert further harm or accelerate apprehension of the suspect. There are safety concerns with posting this “Alert”, which may distract drivers if they look for the suspected vehicle or change driving behaviors to examine surrounding vehicles. No prior studies have examined this topic. Therefore, the research team at University of California at Berkeley proposed a systematic human-factors study, aiming to evaluate the safety effects of Yellow Alert. The second phase of this study, the online survey, is reported here. A total of 1132 valid responses were collected from a sample of California drivers. Results of the survey indicate that most drivers could understand the Yellow Alert message. Potentially about 10% of the drivers would take extra actions to retain the information on the Yellow Alert message.