Learning management systems (LMSs) may provide learners with resources in various formats, such as videos, quizzes, and forum discussions to support their learning, but having access to an LMS does not necessarily mean that learning has occurred effectively. Despite its apparent usefulness, whether the use of the LMS can indeed help learners learn more effectively remains an interesting matter for course providers, LMS vendors, and learners. Therefore, this study adopted the updated DeLone and McLean information system success model to examine whether LMS system quality, information quality, and service quality affect learners' system use and user satisfaction, and ultimately their learning effectiveness. Through a questionnaire survey, responses collected from 123 university students who studied in a blended learning environment at a university were analyzed. Findings showed that system quality and service quality, but not information quality, had a significant relationship with system use. In turn, system use had a significant relationship with learning effectiveness.