Stellantis (FCA) has a recall for exactly this problem, Ram recall C4B, NHTSA campaign 24V-896. It covers certain 2017-2018 Ram 2500 and 3500 pickups, 3500 cab chassis, and 4500 and 5500 cab chassis trucks. It addresses failures in the hydraulic control unit (HCU) that affect ABS, electronic stability control and traction control. Parts shortages are widespread. Many 2017 owners have reported to NHTSA that they got the recall notice but the repair part wasn't available yet, and the manufacturer confirmed it was...
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backordered. the truck cant be used due to the speedometer not working and the trailer breaks not working. the dealer confirmed that the abs module has failed and i cant use my truck and its been backordered for several years. this is completely unacceptable.