The Fiat 500 (312) 2007-present revived the iconic city car with retro styling and has remained on sale for well over a decade with steady updates. Its compact electronics still log service intervals that must be cleared after garage work. An oil service reset clears the change-oil prompt, while a service reminder reset removes the maintenance light from the cluster. You may also need a TPMS reset after a wheel change, a brake pad wear reset with new pads, and a start/stop reset after battery work on equipped cars. A renewed 12V battery may call for registration. Choose the matching procedure below to reset your Fiat 500 correctly and clear any warnings.