Currently, increasingly car-sharing systems are implemented in the area of urban transport systems. This type of development brings many benefits to cities and operators providing services, but above all, following the principles of sustainable development, it should improve society's quality of life. With this in mind, it is particularly important to monitor users' opinions on the services offered and take into account the problems and complaints reported by them. Monitoring opinions on services may contribute to the improvement of the quality of services, but most of all contribute to eliminating transport barriers related to the use of car-sharing services. This study aimed to identify transport barriers, accessibility issues, and transport social exclusion reported by users of car-sharing services. The purpose is to present the phenomenon of social exclusion in car-sharing services based on the Church's conceptual framework. The article identifies seven main categories of social exclusion, including economic, physical, geographic, spatial, fear-based, time-based, and facility-access barriers related to the use of car-sharing services. Moreover, the article includes presentation of remedial measures limiting the phenomenon of transport, social exclusion and barriers, consistent with the principles of sustainable development. The article supports operators who want to create services better suited to the needs of the society. It is also a response to a research gap dedicated to transportation social exclusion and aspects of responsible business in the car-sharing industry. The work supports eliminating the phenomenon of social exclusion and the pursuit of creating socially and environmentally responsible car-sharing services.