It does not necessarily mean that if a truck jackknifes, then it must have been the truck driver’s fault due to negligence or error. Rather, the totality of the circumstances and conditions around the accident time will have to be analyzed to determine whether, in fact, the truck driver was at fault and, if so, by how much. Other parties can certainly be at fault for jackknife crashes or at least share in the fault. For example, if a trucking company failed to properly maintain a truck or a jackknife occurred due to an inherently defective coupling device, the trucking company or truck manufacturer might be the liable party.