Built to undercut rivals on price, the MG ZS petrol crossover still arrives with a modern suite of electronic service monitors that expect to be reset after work. Skip that step and the maintenance light stubbornly stays lit even though the oil is fresh. On these cars you may need to perform an oil service reset, zero the service-interval counter, carry out a TPMS reset after touching the tyres, and reset the brake wear indicator once new pads go on. MG altered the dashboard software between the early ZS and the refreshed version, so the menus are not identical across the range. Choose the generation that matches your ZS below to follow the right procedure.