My wild educated guess is a faulty APP sensor. The vehicle accelerator input is drive-by-wire technology. Because of the importance of engine speed control, the accelerator position sensor is actually 2 redundant sensors that are components of the accelerator pedal assembly. If just one of the 2 sensors glitches then the car’s computer displays that message and limits speed and defaults to some other limitations. Sometimes just unplugging and plugging the harness to the pedal assembly will correct the situation.
Having the DTCs read will prove or disprove this guess.
CSA
