The Daihatsu Sirion is a tall, light supermini designed to maximise interior space on a tiny footprint, sold in some markets as a rebadged Subaru. Its service-interval electronics keep count of oil life and maintenance timing, and those counters need clearing once work is done. Owners commonly perform an oil service reset to switch off the maintenance light, a service reminder reset after scheduled servicing, and a TPMS reset on later models. The reset method shifted between the Sirion’s generations as the dashboard was redesigned. Pick your Sirion generation from the list below to open the matching service reset instructions.