NHTSA Complaint #11446495 — 2019 HONDA ACCORD

At approximately 16:08 EST on Jan 1, 2022 I was traveling westbound on I-76 at mile marker 146.9 WB (40°02'03.0"N 78°29'50.0"W) in the center lane on a straight section of road at approximately 70mph. Car mileage was 21264 at the time of the crash. The weather at the time of the crash was light rain and with temperature approximately 50F. The car suddenly and for no apparent reason began skidding / fishtailing. I tried steering to regain control of the vehicle and applying the brakes to slow down, but the car continued fishtailing. I did not feel the anti lock brakes engage at any point during the skid. I went into the left lane, and struck the center concrete barrier, causing the airbags to deploy and the car to come to rest in the left lane. 3 symptoms appeared the day of the crash which had never happened before: 1) Several hours before the crash, the vehicle began handling strangely. It felt like there was either steering or brake input from the land keeping assist / adaptive cruise control / traction control systems which was "fighting" me and causing the vehicle to swerve slightly. These handling anomalies occurred randomly about 10 times immediately before the crash. 2) About 2 hours before the crash, the check engine light began flashing and there was a loss of engine power. I pulled over and restarted the car, which seemed to resolve the check engine light / power loss. 3) At one point the adaptive cruise control turned itself off and gave a message about traction conditions. To my knowledge the problem has not been confirmed or reproduced, and the vehicle has not yet been inspected by Honda, my insurer, or anyone else. As of Jan 6, the vehicle is currently in a yard near Altoona PA awaiting assessment, and is available for inspection upon request. I informed Honda about the crash on Jan 6, 2022. They gave me a case number and said to work through my insurer on next steps. Honda service bulletin 21-052 may be relevant to this incident.