The topic is the construct of interactive vulnerability in buyer-seller relationships based upon mutual time- and relationship-dependencies. The research is based upon a selection of focal dyads between a vehicle manufacturer and its most important suppliers. The principal contribution is a framework of operationalization and analysis of the construct of interactive vulnerability and an empirical illustration of interactive vulnerability in the automotive industry. A methodological contribution of the study is its dyadic approach of vulnerability in buyer-seller relationships. Theoretical and managerial implications, as well as suggestions for further research, are provided. © Emerald Group Publishing Limited.