O2 Sensor problems of the 2012 Dodge Ram 3500

Recalls: p65 diesel fuel heater, potential fuel leak and fire. Ram does not have parts to fix, refuses loaner vehicle until parts are avaliable. Vehicle not safe to drive n49 left tie rod, requested appointment to have repaired appointment never made by dealer. Emmission control problems related to O2 sensors and wiring, paid $387 to have repairs made, not repaired and not under warranty according to ram. Engine stops running requires code clearing thru obd2 system to get running out of "limp" mode. Dealers aware of issues, multiple TSB, but no fix works.