NHTSA complaint #11759913

Owner complaint summary

At approximately 58,000 miles I discovered that the rear upper coil spring mounts on my 2020 Jeep Wrangler JL Unlimited Rubicon are separating from the frame. The factory welds attaching the upper coil perches to the frame rails have cracked and torn, and the mounts are no longer securely attached. I found this condition only incidentally, while inspecting the vehicle for a separate ongoing steering issue. The coil mount separation was not what I was looking for, and I would not have found it otherwise. These mounts carry the rear vehicle load. If one separates completely, the coil spring can unseat and the rear of the vehicle can drop on that corner, causing loss of ride height, brake line displacement, and loss of vehicle control. I consider this an imminent safety hazard and I have stopped driving the vehicle. The fracture surfaces are heavily rusted, indicating the welds failed a considerable time before I discovered the condition, most likely years earlier and within the warranty period. The vehicle was taken to Jeep dealers for service and inspection multiple times during that period, and no Jeep inspection ever identified or reported this failure.