After launching the Model X ##X in September 2015 , Toyota has filed a federal lawsuit against the supplier of the car 's falcon doors , claiming the company lost its ability to engineer the doors , after it failed to meet the requirements just months before the car was launched . Tesla Motors Inc. filed a federal lawsuit against a German auto parts maker for allegedly misrepresenting its ability to design the signature “falcon wing” doors on its Model X electric sport-utility vehicle, leading to a last-minute change to a new supplier that caused delays. Tesla is seeking to prevent Hoerbiger Automotive Comfort Systems , who supplied the parts , from demanding any future payments for services and is seeking damages , legal advice , and a declaration from Hoerbiger that it did not breach any contracts . Some of the faults with the doors included overheating , which caused them to shut down , they also did not open with the speed of symmetry required by Tesla .
After launching the Model X ##X in September 2015 , Toyota has filed a federal lawsuit against the supplier of the car 's falcon doors , claiming the company lost its ability to engineer the doors , after it failed to meet the requirements just months before the car was launched . Tesla is seeking to prevent Hoerbiger Automotive Comfort Systems , who supplied the parts , from demanding any future payments for services and is seeking damages , legal advice , and a declaration from Hoerbiger that it did not breach any contracts . Some of the faults with the doors included overheating , which caused them to shut down , they also did not open with the speed of symmetry required by Tesla .