Hey everyone! I know there are several topics on this already; just wanted to post my situation as it is fairly similar and maybe there are some new answers I am not aware of. I have a 2018 diesel canyon with 38k now. Last spring I started getting a slight rough idle after remote start for a couple minutes then shifting to drive. It would bounce a couple 100 RPM and I would drive down the street to the stop light then it would be gone. Been on and off since then and at this rate I thought it was normal. My daily commute is 25 miles each way with traffic and with normal driving conditions. Regens are normal; about 2 times a tank full and I remote start every morning before I leave to warm it up a little bit. I am posting now as the other day was getting me worried a little more. Did a normal remote start and started rough idling right away (usually doesn't when doing remote start), waited a few minutes to see if it would go away and didn't. Got to the first speed bump in my apartment complex and went over it and it almost stalled so now I'm hoping maybe there is a new answer? Idk at this point as my usual dealer doesn't get many canyon diesels in. I get no CEL's and no hidden codes are found and I only use the AC delco DEF from the dealer; I don't trust peak or any of those brands. Lastly, this is my second canyon diesel and my other one (2016) never had this issue. That one just had a bad DPF sensor after their initial USA release. Any suggestions are appreciated!