On XXX, at approximately 12:19 PM, I was in the drive-through lane at a Chick-fil-A in [XXX], with my child as a passenger. I was using one-pedal driving mode and had come to a complete stop with my foot off the accelerator. I turned briefly to hand my child an ice cream cup, and when I looked back at the road, the vehicle was accelerating at full power with no contact from either pedal. To avoid striking the vehicles stopped ahead of me in the drive-through line, I swerved left into the Chick-fil-A building, causing a collision with the building. This put myself, my child, and nearby pedestrians and drivers at serious risk of injury. Cedar Park Police Department responded to the scene and a report was filed. I have video footage of the incident. The vehicle is available for inspection upon request. I believe the accelerator pedal and/or its sensor malfunctioned, possibly related to a known issue some other Rivian owners have reported involving cabin temperature affecting the pedal sensor; this has not yet been confirmed by a dealer or manufacturer. I am requesting that the manufacturer pull the vehicle’s black box/EDR data and perform full diagnostics on the pedal and sensor. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)