W3SChevy

Disconnected the negative battery cable, reinstalled the OEM intake and ran the truck around the neighborhood and let it idle a bit too. I also cycled it on and off about 5 times. Still no luck... I still have the Check Engine Air Filter System message. I reinstalled my K&N and will have to pay Chevy to troubleshoot I guess.

Did the AutoZone thing and they couldn’t clear it. Yes I’m referring to the DIC remaining filter life. I’m past the point of being able to hold the button down on that screen and disable the filter life monitor. I go to that screen and it just states Check System and no filter %. Apparently if you click ok on the alert to dismiss it about 5x it locks you out of being able to go in and disable it. I’ve had the GM CAI in 3 other trucks I’ve had in the past 2 years and the last item is to have the tech enter a PCI code and have GM program it. I’m wondering if they need to do that. I still have the code from that CAI. It was the same body style and engine. The K&N one had better reviews and was cheaper than the GM one so I decided to do this one myself. I guess I’m paying for it now. I may try to install the old one as stated by the one comment and see if that clears it up then reinstall. That may be my last step if the next service center won’t fix it.

Hey all, I have installed a K&N CAI in my 2021 Silverado 1500 LTZ 5.3L. The video shown in a post about this issue only works if you do that BEFORE you get to the point of seeing the Check System message. I’ve been to 1 Chevy service center and they won’t touch it or clear my code. They don’t seem to understand. I’ve explained it to another Chevy service center and they said it may be a few hours of labor and their Tech support. K&N support doesn’t understand why these service centers don’t just clear the code and disable it in the info screen. I’ve disconnected the negative battery cable for various amounts of time from 10 min to an hour and left the headlights on to drain the rest of the ECM. I connect it again and the same message pops up. If I can get the code cleared I should be able to go in and disable the air filter monitor. Note that I have used an after market code clearing tool and it doesn’t do the trick. Cold Air Intakes are very common so I’m not sure why the dealerships are acting so clueless about this. Help!

I have the same issue on my 2021 Silverado 1500 LTZ 5.3L. The video shown as the response only works if you do that BEFORE you get to the point of seeing the Check System message. I’ve been to 1 Chevy service center and they won’t touch it or clear my code. They don’t seem to understand. I’ve explained it to another Chevy service center and they said it may be a few hours of labor and their Tech support. K&N support doesn’t understand why these service centers don’t just clear the code and disable it. I’ve disconnected the negative battery cable for various amounts of time from 10 min to an hour and left the headlights on to drain the rest of the ECM. I connect it again and the same message pops up. Help!