2015 Shut Down While Driving Highway Speed

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HoustonKid

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About 2 weeks ago the family and I were coming back from a road trip. I was driving the wife's 2015 SHO with 17,*** miles on it. I had the cruise control on doing 75mph in a 75mph zone. I heard a chime, and looked down at the instrument cluster. Message in yellow read adaptive cruise control not available. One second later or less, a new message appeared that read transmission not in park and immediately the car shut off. I mean the engine, AC, radio, everything turned off. The entire instrument panel went blank. I coasted over to the shoulder and applied the brakes which had no power assist because the car shut down completely. As soon as the vehicle stopped, I put the transmission in park, depressed the brake pedal, and pushed the start button. The car started and no warnings came up on the panel. We finished the trip with no additional issues. The next business day we took the car into a local Ford dealership. They scanned the cpu and determined that the adaptive cruise control module caused the issue and it needed to be re-aligned/re-configured. They performed the fix and could not get the car to reproduce the issue when driven.

I do not understand how a engineer would design a system where the corrective measure is to shut down a car while driving 75mph down the highway. I can understand the cruise control becoming inoperable but to shut down the car completely is a very dangerous solution.

Has anyone else had this issue on a newer SHO. Again, ours is a 2015.
 

SHOdded

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Scary situation, glad you got it under control! Have seen similar issues on the Edge platform, usually a faulty transmission range sensor or shifter causing messages related to "transmission in park" etc. ACC can be affected even by rolling through a car wash that has very high pressure jets. Could even be a battery voltage issue, though your wife's SHO is a little too new for it (bad battery from factory?).
 

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