Everything I've read elsewhere indicates that is necessary to prevent what is called a "death wobble", which results from the front wheels not turning sufficiently to track behind the motorhome well. This seems to be a common issue on vehicles that have electric power steering rather than hydraulic.
From what I've read, all newer cars, not just Jeeps, with electric power assisted steering (EPS) are likely to have the "wobble". The wobble is described below as the vibration or movement that occurs when the toad doesn't exactly follow the motorhome or other towing vehicle. This is especially true when sharp turns are made from dead stops on uneven roads.
On another forum, a lady who's been working on the problem for some 18 months reports that while Jeep has a fix for its smaller Jeeps, it still is working on the engineering problems for larger Jeeps like Grand Cherokees.
I haven't seen discussions about what other toad builders are doing to eliminate wobble on their vehicles.
For me, the question is, which potential toads can be towed four wheels to the ground, or flat down, do not have EPS and don't have the wobble issue? Ford-150?, Wranglers, GM pickups, or what?
I spent a few hours last night reading about this problem. I won't buy a 2010 to 2019 Jeep until the issue is resolved.
If I was Jeep, I'd say the heck with it and only promise that Jeeps that don't have ESP can be towed flat down.
Be double sure that the Trailhawk has a fix. Is it among the larger Jeeps that won't have a fix for another six months or so? Don't talk to a Jeep sales person. Go to the service department and find someone who knows what you're talking about. Make sure that the Mopar accessory kit (68321424AB) is properly installed, whatever that means.
Update Wiring kit required # 68321-424AB was available comes with detailed instructions we install tomorrow. Talked to a man with a 2016 Cherokee said he only experienced a couple times wobble at low speeds in 20K miles mostly on rough roads. I had to provide the part # Jeep has no clue? Thanks to all.