Riley Auto Care & Transmissions has been a dependable name in auto repair for San Marcos, TX drivers since 1978. Our shop focuses on transmission repair and replacement while also covering the everyday essentials: engine diagnostics, brake service, suspension repair, AC repair, oil changes, and factory-scheduled maintenance. We work on all makes and models using up-to-date diagnostic tools and quality parts, and every repair includes a 2-year/24,000-mile warranty. Our goal is simple: diagnose the problem accurately, explain your options clearly, and get it done right the first time. Whether it is a quick oil change or a full transmission overhaul, our experienced team is ready to help. Stop in or call to schedule your next service.