I bought my 2018 new in 2019 and the ABS/Traction lights started coming on last year. Last year when it started, I contacted FCA and their Response was "Sorry, even though you only have 15,000 miles on your 2500, you're past the 3 year Warranty". Sometimes, the Lights would come on and go off, on and off, etc and then after 5 minutes or so, go off and stay off. Other times they wouldn't come on at all. Yes, I hated the constant dinging but also missed the Cruise when the lights were on. Then, 2 days ago the lights came on and have stayed on. I'd read that it could be a dirty wheel sensor (pull them and clean them off), a Bad sensor (find out which one and replace it OR just replace them all), or a bad module. I checked on line and there don't appear to be any Modules pretty much anywhere. The AB version has been superseded by the AC version and it looks like the Modules run about $250.00-$300.00 but again, they don't seem to be available. There are a few scattered around, such as on EBay, but the ones I could find available were priced around $1,100.00 or so.