2013 INFINITI QX56 Suspension Problems

Control arm failure

The contact owns a 2013 Infiniti QX56. The contact stated that intermittently while parked, and while driving at various speeds, the rear of the vehicle was sagging. No warning lights were illuminated. The vehicle was taken to a local dealer, where it was diagnosed that the air shocks and compressor needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and the contact was informed that the warranty had expired. The approximate failure mileage was 40,000. The contact stated that the air suspension system on the vehicle never properly worked. There was an attempt to make repairs but that did not fix the problem.

While my wife was driving our QX56 during normal conditions at approximately 40MPH, QX56 begun to swerve repeatedly left to right in a dangerous manner and she had to apply brakes rapidly. Looking under the vehicle, the lower control arm was badly cracked and the cause of the swerving. I towed to my local shop (not Infiniti dealership) for repair and they confirmed the right control arm was cracked. They stated the left control arm was also severely rusted / damaged and wasn't too far from cracking either. Fortunately, my wife was only going 40mph and was able to control the swerving. If going 70 or 75MPH on the highway, I'm not sure that would have been possible. Pictures are attached, both of broken right control arm which caused swerving and left control arm that is near cracking. With both control arms going out at same time, I feel this...