This is from the 2010 F350 owners manual. BTW you can access it on the
www.Ford.com website.
DRIVE TO CLEAN EXHAUST FILTER (Diesel engine only) —
Displayed when the Diesel Particulate Filter (DPF) is full of particles (exhaust soot) and the vehicle is not being operated in a manner to allow normal cleaning. This message will stay on until the exhaust filter cleaning has begun, at which time the CLEANING EXHAUST FILTER message will be displayed. It is recommended the vehicle operator drive the vehicle above 30 mph (48 km/h) until the CLEANING EXHAUST FILTER message turns off. This message is NORMAL. Refer to your Power Stroke 6.0 and 6.4 Liter Direct Injection Turbo Diesel Owner’s Guide Supplement for more information.
Note: If this message is ignored, your vehicle will continue to fill the Diesel Particulate Filter (DPF) with particles (exhaust soot). If cleaning is not permitted, the light will illuminate and engine power may be limited. If the vehicle is still not operated in a manner to allow cleaning, the service engine soon light will illuminate and engine power will be further limited. Dealer service will then be required to restore your vehicle to full-power operation.
Note: Diesel Particulate Filter (DPF) regeneration will not initiate at idle or in Power-Take-Off (PTO) mode. When DRIVE TO CLEAN EXHAUST Instrument Cluster 30 FILTER is displayed in the message center, PTO and/or Stationary Elevated Idle Control (SEIC) must be disengaged/inactive in order to properly clean the DPF. The vehicle must be driven until the CLEANING EXHAUST FILTER message turns off.
CLEANING EXHAUST FILTER (Diesel engine only) — Displayed when the vehicle has entered the cleaning mode. Various engine actions will raise the exhaust temperature in the Diesel Particulate Filter (DPF) system to burn off the particles (exhaust soot). After the particles are burned off, the exhaust temperature will fall back to normal levels. This message is NORMAL. Refer to your Power Stroke 6.0 and 6.4 Liter Direct Injection Turbo Diesel Owner’s Guide Supplement for more information.
WARNING: When the CLEANING EXHAUST FILTER message appears in the message center, do not park near flammable materials, vapors or structures until filter cleaning is complete.
EXHAUST FILTER DRIVE COMPLETE (Diesel engine only) —
Displayed when the Diesel Particulate Filter (DPF) has been adequately cleaned after the DRIVE TO CLEAN EXHAUST FILTER followed by CLEANING EXHAUST FILTER messages have been displayed. This message is NORMAL. Refer to your Power Stroke 6.0 and 6.4 Liter Direct Injection Turbo Diesel Owner’s Guide Supplement for more information.