NHTSA Complaint #11484166 — 2017 CHRYSLER PACIFICA

While idling and in park, entire electrical system failed. No dash lights. No hazard flashers. No dome lights. Start button unresponsive. Parking brake engaged. Attempt to jump had not effect. While undoing 500 amp positive battery terminal to replace battery, connection restored and vehicle behaved normally. Soon after while driving, dash went dark for less than a second but returned to normal and engine kept running. Moments later when came to stop to back into driveway, repeat complete electrical failure. I disconnected all positive battery terminals, cleaned with wire brush and applied terminal protective grease before reconnecting. Vehicle functioned normally. I had recently replaced the battery myself and I suspect subsequent corrosion in terminals caused loss of electrical continuity. At minimum, I recommend a service alert but had this occurred while I was driving on a highway, I would have had no control of the vehicle at all and likely would have been in a serious crash.