NHTSA Complaint #11490226 — 2021 TOYOTA SUPRA

I own a new 2021 Toyota Supra and along with other owners of this new model, there is a safety issue that has been identified. There is a repeating issue with unresponsive/unpredictable throttle behavior for me and other Toyota Supra owners. It only happens on a cold start, when going in reverse on a slope (exiting the garage) and when traction control gets engaged (the wheel gets in the air for a second due to the curb/slope). After this maneuver either the engine gets stalled or the throttle starts to behave unpredictably. Specifically about the latter — pressing on the pedal does nothing for 2-3 seconds but then suddenly the engine revs go high and the car jumps ahead, even if the pedal is not pressed anymore. As if it's a 2-3 seconds lag between the pedal press and the wheel spin. This happened to me at least 20 times during the time of ownership (6 months). My trip to the dealership didn't help as I could not replicate the issue (only happens on cold start). I've contacted the manufacturer (Toyota USA) but they were unable to help and only documented the case. I have tens if not hundreds of Supra owners in an online community reporting the same issue. We are also aware that this issue is affecting owners globally, but Toyota has not yet made any statements about it. This issue is a safety concern and I almost got into an accident because of it. It requires attention before anyone gets hurt. Will be happy to assist and provide reports from other owners in the US. I've also attached the error codes that appeared at the time of the last accident and an invoice from the dealership. Thank you.