The extensive use of telematics system in the new generation of automobiles contributed to the rising trend of using automobiles as a channel to provide remote service. Yet the measurement of telematics service quality (TeleServQ) is not well established. This paper aims to identify the dimensions of TeleServQ. In-depth interviews are used to investigate the initial items in measuring telematics service. Conceptual framework of TeleServQ scale is proposed based on items sorting. Then the multidimensional scale is refined and validated with questionnaire survey. As a result, six dimensions including efficiency, system reliability, information quality, security, customisation and call centre service are identified. Some of the dimensions are consistent with the literature related to technology-based services, and others are specific in telematics context. Among six dimensions, efficiency and system reliability have the strongest relationship with customer satisfaction and loyalty intention. The scale demonstrates good psychometric properties based on the findings of reliability and validity tests. Finally, theoretical contributions and managerial implications about our TeleServQ scale are further discussed.