Alternative dispute resolution (ADR) is normally included as part of an introductory business law/legal environment course. While some business schools offer stand-alone ADR courses, the majority do not. As a result, a business student's only exposure to ADR processes may be through a Legal Studies in Business course. Several scholars have created and published simulation exercises specifically for ADR instruction in the classroom such as an online dispute resolution, an international ADR simulation, and negotiation of a real estate contract. This article contributes to the instruction of ADR in a legal studies course by explaining and creating a simulation based upon a national, informal ADR program--the Auto Line[R] dispute resolution program of the Better Business Bureau (BBB). The BBB's Auto Line dispute resolution program is an informal arbitration proceeding between customers with vehicle warranty complaints and the vehicle manufacturers. A simulated Auto Line arbitration conducted in class can serve as a clear, effective pedagogical model of several types of ADR encountered in the business world. This article describes the BBB's Auto Line arbitration procedure and the legal framework supporting vehicle warranty arbitration through the program. Resources for use in class, including references to the Auto Line Web site, are noted. Next, a simulated lemon law arbitration is proposed and explained for utilization in a typical undergraduate business law course. Results of conducting this simulation in classes are reported, as well as student comments. Appendices contain the basic guidelines for the participants, suggested questions for assignment or discussion, and data collected from student responses. (Contains 75 footnotes.)