I had a red sign on dashboard saying:*chassis failure, park the car carefully.* the car was towed to Porshe. And, was released after one week as safe to drive and dismissed the sign as a glitch. The second day of releasing the car, I had a major accident while parking the car in the garage. The accident resulted in damage to the outer wall and to cabinets. I requested an investigation of the car and the results from Porshe weren’t convincing. I know I pushed the brake twice but the car jumped with acceleration twice and stopped because of the wreckage in front of it.