NHTSA Complaint #11556897 — 2014 RAM 3500

My service abs light comes on and off, which makes cruise control inoperable and rear park sensors inoperable. This also makes putting into 4x4 impossible unless I turn off the truck, switch to 4x4, and start it before the sensor kicks off. I’m worried about the abs mainly. I contacted my dealer and they said it’s a common issue but the part is almost $1k and backordordered for months. How is this not a recall or safety issue?