Check Engine P2459

[gdvc16]

New to the forums here, first post, unfortunately!

I have a 2023 Limited 2500 (love the truck!). It’s my daily right now but it also works. Have a farm, tow my tractor around, pull the toys etc.

The truck has 2700 miles on it and the second check engine light for regen frequency is on. First time they cleared the code and just said don’t let it idle to much, which I don’t.

My filter is at 0%…I’m not sure what’s going on here. Before I take it back to the dealer wanted to see check here and see if I’m missing something. Thanks!

 

[Woodywoodpecker]

following

 

[mbarber84]

With it being so new and with so little mileage, I would lean toward a failed or intermittently malfunctioning DPF differential pressure sensor.

Have you noticed any movement on the DPF gauge itself? And are you actually seeing a lot of active regeneration cycles?