Recently upgraded from a Ram 1500 5.7L to a Ram 2500 6.4L 4x4.
Truck is awesome, don't even need tow/haul mode pulling my 7000 lb camper. Night and day vs. 1500, blah blah lol. I'm averaging 19 mpg hwy, 14 mpg around town, 11 mpg towing.
My only complaint is the tire pressure monitoring system. The door sticker says 60psi Front, 80psi
LT275 70 18 Firestone Transforce HT tires.
Well I mainly use the truck to tow our camper and the rest of the time it is unloaded and empty. At the door sticker pressure and empty, you can imagine the ride is less than smooth.
I am currently running 55 psi front and 50 psi rear and the ride is sooo much smoother. But now I have the TPMS light on. Even at my current lower pressure and pulling my TT, I am still at an acceptable pressure according the Firestone Tire loading chart I have. My payload is 3180 per yellow sticker.
Apparently Ram used to offer a Light Load switch for the TPMS on 2013 and prior 2500s.
I took the truck in to the dealer for help with this and the service guy took me aside and said I'll take care of it (wink,wink) like he's done this before, then he comes back 15 minutes later and shows me some paperwork dated April 2016 from Chrysler telling him that he can no longer change it.
I think it is ridiculous that Ram requires full load pressure in the tires on 2500s (3500s don't have this limitation)
Was anyone able to get the dealer to reflash the TPMS to lower thresholds?
What tire pressures are you all running?
Thanks and sorry if this has been asked before.