What does the message engine system service required mean on Volvo S60?

The "Message Engine System Service Required" warning on a Volvo S60 indicates that the vehicle's onboard diagnostics have detected an issue with the engine or related systems. This could be due to various factors, including engine performance problems, emissions issues, or other critical malfunctions. It’s advisable to have the vehicle checked by a qualified mechanic or at a Volvo dealership to diagnose the specific problem and ensure safe operation. Ignoring this warning could lead to more significant issues down the line.