Toyota Driver Assisting System - Accelerator Reaction Force Control Unit
Here is information that details the components in a driver assist system. Note the Accelerator Reaction Force Control Unit. This may or may not be a system thats currently part of the Toyota platform, but it would suggest that if there were a reaction force control unit then it could be a combination of a bug in the software and a safety mechanism that is supposed to “alert a driver” via brakes being applied.
