Keep your eye on it. Mine did the same thing then went haywire again. New fix is to install new DEF Tank Assy. Part is backordered. Been waiting a month so far.My dealer did this on Thursday. Along with the seat belt fix and ordered a front winter grill cover. Mine I had just filled the Def, it showed one bar low before the flash. Showed completely full after.
Software update is useless. The part is in engineering redesign. I get an update every week from my case rep at GM.I got the software update today. I don’t think it did anything. Even Gas % is stuck at 65%. So much money for this trucks and to run in to small issues is annoying
That’s good news. I hope it gets redesign ASAPSoftware update is useless. The part is in engineering redesign. I get an update every week from my case rep at GM.I got the software update today. I don’t think it did anything. Even Gas % is stuck at 65%. So much money for this trucks and to run in to small issues is annoying
I tooky 19 in for the recall plus block heater and since I did I have not got any warnings for def level it always reads def ok I've noticed it is using less 19 dmax has 31000 on it nowTook my 2020 in for the tire shakes and the service advisor said there is some sort of def level recall. figured I would mention it.
The new tank fixed mine....I had the DEF related software update several months ago. Recently, warnings for low DEF or Empty DEF will randomly pop up. So far, it has cleared itself and read correctly prior to reducing the engine speed. The dealer is telling me i need the updated tank and have now ordered it. No ETA was given.
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I have a 2020 2500 HD Duramax, I have just had it in twice for this DEF fluid issue. So far, they have flashed the main ECM and the second trip in.. they flashed the instrument cluster. The problem has popped up twice already, but it appears that the main ECM is probably over-riding the instrument cluster. I say that because it had "poor def quality" for a couple of minutes and then my main display was on something else. I changed the display back to monitor my def, and everything was fine then. When the levels were wrong, it seemed to report correctly after a few minutes. We will see, I have only had it out once since they re-flashed everthing.Cool. Thanks