There was a setting you needed to change before installing it. It's come up many times on the new trucks.
LoL, it's a setting they added to the newer trucks. He might have to go to the dealer to have them reset it and change the setting.That k&n probably let in so much dirt that it dirtied up some of the sensors in the intake. That happened to me once, bought a 2018 Cummins with a k&n, it was the whole intake not just the filter, so I couldn’t just swap in a paper filter. So before I could change it out, a CEL came on about a sensor in intake. I had to clean a bunch of sensors and wipe out intake pipes.
K&N is garbage. Go with stock, more than adequate. Or go with purolator one, it tested best for filtering and static pressure. Meaning it flows the best while actually filtering.
As your finding out nearly all dealers are trash now.Thanks but hindsight is 20/20. Now that I am receiving the notification I need to know how to reset it. That info is good but only helps if you haven't received the 'circle of death' yet.
1 local mechanic and 3 dealerships have already told me they cannot help, and 1 dealership told me my warranty is now void be I dropped in a replacement filter. This is insane.