Performing a Parked Regeneration
Parked Regeneration for Vehicles without a Physical Switch
Parked regeneration can be initiated by selecting OK when the driver message center displays "Parked Regen Required" or "Parked Regen Available". A parked regeneration is allowed when the DPF lamp is illuminated.

A parked regeneration can be stopped by selecting OK while the regeneration is in progress. The parked regeneration may take up to 45 minutes.
Parked Regeneration for Vehicles with a Physical Switch
Warning: ENGINE EXHAUST
To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.
Warning: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside.
When the parked regeneration request is accepted, the Diesel Particulate Filter (DPF) Regeneration lamp will turn ON one time for one second and then turn off for the remainder of the parked regeneration. The High Exhaust System Temperature (HEST) lamp will flash for one second every ten seconds and eventually become solid when the tailpipe temperature is above 525°C (977°F).
The engine speed may vary during parked regeneration (depending on engine displacement, exhaust temperature and the amount of soot accumulated in the DPF). The regeneration is complete when the engine returns to low idle and the DPF lamp remains OFF. The HEST lamp will remain ON, but the vehicle may be driven.
- Keep engine at slow idle (cannot be in Fast Idle or PTO Mode). Put transmission in neutral (if equipped with an automatic transmission, cycle it into gear and then back to neutral).
- Set park brake (cycle the park brake OFF then ON).
- Press and release clutch pedal once per ignition cycle (if configured).
- Hold DPF Switch to the ON position for five seconds and then release (engine speed will increase and DPF lamp will go out).