My wife's 2017 Pacifica just began receiving the Engine Start Stop Failure message along with a bing sound every time she starts the van. The message is something along the lines of "ESS unavailable. Call for service". We are planning on a 400-mile round-trip in a couple of days. I called our dealer - Luther Brookdale Chrysler - to explain the issue and ask for the quickest service. They were unable to accommodate our tight schedule so I asked if the car was safe. Despite my best attempts, I could get ZERO assurances. I asked: "Will the van quit while driving down I-94 at 70 MPH?". "We can't say that." was the only response - at least five times. So now I am unsure whether or not we should make this trip. What do you think? Is this car safe to drive?