The 2013 Altima’s rear control arms are separating from the frame. The likely culprit is corrosion due to road salt and there’s an investigation to see just how serious the problem has become.
Altima drivers complain about losing the rear suspensions that affect rear wheel alignments on what Nissan calls the lower spring links, with three complaints saying the control arms broke while the vehicles were in use.
No control arms? No control. Sounds pretty serious to me.
All vehicles are susceptible to the hazards of road salt, especially in the salt belt states. Some vehicles just seem to handle it better. Apparently the 2013 Altima isn’t one of them.