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Does anyone e or know much about this code ? I have a 2022 5500 6.7 i6 , are there threads on here that talk annoy what it is and steps to take, what i can do ? Thanks for your feed back

Pretty sure it's the tires from Thailand, was told they make harder sidewall tires. But letting air out to 45 should help some.

I'll try that, yah even on the door it says front tires at 50. Back at 70,

When I bought it dealer had the back at 70lbs, I put them at 65lbs , no difference

The tires are Otani 275x70r18 the dealer put this brand on. Made in Thailand, I researched em and they make tires for all heavy equipment. Probably not heard of here in the states. But my point is that I believe they make the truck ride rough. The truck bounces all the time, so I put 700lbs...

Hello and thank you for the acceptance, From east side washington. 1st day of December it snowed , today it's all gone, Lol , own a 2020 3500 4x4 Tradesman LB 6.4L , 50 gal fuel tank (paycheck to fill it).