2019 GMC 2500 6.6 / 55,000 Miles. Was on a road trip last night and got a DIC warning that I had 175 miles until I was limited to 65 mph. Stopped and put in 2.5 gallons of DEF. After driving another 75 miles or so and trying several on/off with the ignition it didn't reset, so I topped it off with another 2 gallons. Answered by Honest John. At this sort of mileage the DPF will be getting full of ash so it's probably time to have it cleaned out by the Ceramex process. This costs around £300, which is a lot cheaper than a replacement DPF. A DPF has two cycles: Passive is where the heat of the engine burns off the soot it has collected. Most cars have a two-stage warning system to let you know when the DPF is becoming clogged. If you see an amber light, you should be able to get the DPF to regenerate itself by driving over 40mph Redex DPF Cleaner: This lowers the temperature that the soot burns at, meaning it can be cleared just with normal driving. If you use it when the warning light comes on and then drive, the light should go off in around 10 minutes. It’s a cheap and convenient way to keep your DPF working efficiently. Buy Redex DPF Cleaner today: 18 Dec 2016. #2. The 4 hour motorway drive could help clear the DPF. It tends to be lots of short journeys that cause them to get blocked and require regeneration so a decent long run at relatively high revs (over 2000 RPM IIRC) should do it some good. Check with your garage first though, just in case this is bad advice. Garage. Country Flag. Aug 26, 2022. #2. Could be a faulty pressure sensor. Try swapping the pressure sensors and see if the full dpf changes banks too. I've known the ecu (VAG not Toyota) to show good values in diagnostic software, whilst also saying dpf full, with a sensor on its way out. Don't have a dpf equipped Toyota, but dpf faults are A diesel particulate filter (DPF) is a device which sits in the exhaust system, it “captures” soot / diesel particulate and other nasty particles so they are not released into atmosphere. A diesel particulate filter can remove upwards of 85% of the particles from the exhaust, reducing harmful emissions. There is no warning light, but I assume you drive your diesel indeed in very short distance. I drive short as well as very long journeys and haven't get DPF regeneration failed yet. Qashqai J11, 1.6 dCi CVT, ThermaClear. For latest news & tests Subscribe! to my Youtube channel. Order Stop/Start reversing & DRL dim/OFF modules! gvmdaddy. .

how do you clear a dpf warning light