New to site Mopar owner for many years, 2026 Ram 3500 Bighorn dually. 6.7 Cummins H/O turbo Electrical issues.

[dustyjim]

Recently purchased our 2026 Ram 3500 and under 10,000 miles I have incurred multiple issues such as headlight control switch won't turn lights off, when plugging in our 5th wheel the lights on truck flicker several times, engine light has now come on, abs light is on, park sense is disengaged, electronic stability is disengaged, cruise control not available,4wd not available and my tire pressure coming on at 64 lbs on rear and set point is 65..all these things at once.
Truck is currently at dealer and lack of response from them is telling me they don't have a clue as to what the root cause is, super frustrated obviously after spending over 80000 and I can't even get a loner from the dealership which is West Knoxville TN.

 

[Forceofwill]

My tradesman won't turn the lights off normally either because the truck uses them as DRLs. I'm pretty sure you have to go into the infotainment settings and turn DRLs off, then it will work with the knob.