How do you force a parked regeneration?

Forcing a parked DPF regeneration requires a specialized diagnostic scan tool. This tool commands the vehicle's Engine Control Unit (ECU) to elevate engine RPM while stationary, typically in park/neutral. This action significantly raises exhaust gas temperatures, effectively burning off accumulated soot from the Diesel Particulate Filter (DPF). It is a critical service procedure performed by technicians to clear DPF blockages.