NHTSA Complaint #11514051 — 2017 CHRYSLER PACIFICA

This van has had a problem with shifting at low speeds since it was new but has been getting worse. When accelerating and especially under a load or heavy acceleration 4th into 5th??, it will suddenly jerk. I had recently experienced a heavy jerk and it felt like I lost my rear axle. I also experience heavier jerks when going down hilI and coasting. In all instances it occurs when starting from stop. It started around once/twice a week and now it happens 15-20 times a week. I currently have 96k miles on it. I am fearful this may end up being a catastrophic failure so I am no longer ignoring it and have scheduled a service appointment. I've asked at previous service trips about there being a recall but there have been none. I also do not see any indicator lights when this occurs.