general problems of the 2014 Buick Lacrosse

I was driving and my car stopped then I started it back up then hesitated to go. I parked the car then tried to reverse an it kept jumping and won’t accelerate. I could have got into a major accident on the freeway. The code is giving a transmission control module.

I was stopped at a red light when my vehicle accelerated forward and I was almost hit by several cars across the intersection. I stepped harder on the brake and managed to stop my vehicle although the engine was revving very high. I managed to find an opening in traffic and pulled over. I turned the car off and restarted it. The rpm's were even higher now(over 5000). I immediately turned it back off and called the dealership. I was told it was unsafe to drive and to have it towed to the dealership. I had it towed and was just informed by the service manager at the dealership that there is no recall for this issue ( which is an accelerator sensor). I think this could have been very serious. I am even more outraged because of the fact that my daughter was in the car with me. I hope you can you can please look into this matter before there are any fatalities somewhere because of Buick's negligence( I have reported this occurrence to Buick support).