NHTSA Complaint #11572143 — 2022 CHRYSLER PACIFICA

While travelling on a controlled-access highway at 70 mph with the Adaptive Cruise Control active, and no other vehicles or objects nearby, the braking system engaged spontaneously (without driver input) and forcefully, for approximately .5 seconds, also engaging the anti-lock brakes. The rapid deceleration was forceful enough to snap my family of 5 all into their seatbelts. The speed of the vehicle slowed approximately 10 mph or more during this incident. My family and I were fortunate enough that no vehicles were behind us, no collision occurred, and I was able to maintain control of the vehicle though I was very much surprised. No warning indicators nor messages appeared. I took the vehicle to a servicing dealer three days after the incident for inspection/diagnosis. I was told be the service agent at the desk that, in order for this to not happen again, I should not use the Adaptive Cruise Control. The technician, who was at the service desk, stated he was unable to reproduce the incident on test drive, and that he recalibrated the Adaptive Cruise Control system and sensor, without further explanation as to what that meant.