2018 duramax service emissions system reset. Oct 11, 2023 · Hi, new to the forum. Finally, r...

2018 duramax service emissions system reset. Oct 11, 2023 · Hi, new to the forum. Finally, reset the system by disconnecting the battery for 30 minutes. We stopped at a local GMC dealer and was told the dpf needed to be replaced and they could not get one for 5-6 weeks. Truck runs fine Feb 17, 2020 · I bought a 2015 2500 LTZ with 64,000 miles. Jun 9, 2015 · Yeah speed limited to 55 mph for me lml emissions system Jump to Latest 57K views 18 replies 13 participants last post by Chapman1 Jul 11, 2015 sleadhead Discussion starter Aug 7, 2024 · Today in the shop we had a 2020 duramax L5P that was saying Service Emissions System and threatening to de rate after 140 miles. I decided to try and re-flash my tune to see if that would clear my service emissions message and at this point it worked when i used a re-set file and re-flash tune file. Apr 20, 2021 · On my recent road trip pulling a 17,000 gvw toy hauler the service emissions system light came on around 175 miles from my house. there is a code P24C4 for the EGR bypass valve that comes back eventually after deleting the codes. Dealer doesn't know what it means either? Truck has 66,000 miles on it so I would imagine no warranty left? The dealer did do a recall on it for the def tank heater about 2,000 miles ago. . xhdxiv yeantd nmsl rdrn duj vfqmo vedspj fqnkye jhgsv kghm