dan.hill

I thought so as it has been working fine for the last week but the exact same problem happened again this morning. Back to square one I guess.

Looks like it was a bad knock sensor causing the CEL and preventing the remote start. Dealer replaced it and it has been working fine. Hopefully that is the end of it.

You may be on to something. It does happen with the app or the fob. The issues started not long after I had 3 recalls done. One of the recalls was for a potentially loose ground cable I think. I'll mention that at the dealership this afternoon.

That's disappointing. I tried searching on here and google, but wasn't coming up with much. The biggest advantage to me is range. I work in a large plant and at shift change I can start it with the app from anywhere and by the time I get changed and out to the parking lot, truck is warm. The key fob doesn't compare.

I'm having a strange, random issue with my remote start and I'm curious if it's been happening to anyone else. Started when I tried to start the truck ('19 AT4 6.2L) with the onstar app. It failed, said not to try again and to start truck normally with start button. Did so, and the CEL was on. Got an email saying an engine/transmission issue was detected and to go to dealer within 7 days. Did so, they did a software download and all was good. 2 days later, same issue after trying to start with the app again. Except the CEL randomly cleared and I could use the app again after awhile. Over the last few days the CEL randomly comes on after a failed attempt to start with the app or key fob then will clear eventually. I uninstalled/reinstalled the app after speaking with onstar but that didn't seem to help anything. I have another appt at the dealer later today so I'll see what they say. I really like the remote start with the app so I hope this gets figured out quickly.