Some 2021 EcoSport vehicles equipped with a 1.0L EcoBoost engine may exhibit a condition where the auto start/stop system is inoperative or cruise control disabled with an illuminated powertrain malfunction (wrench) and/or brake warning indicator with diagnostic trouble code (DTC) P164C or P0504 stored in the powertrain control module (PCM). The vehicle may also exhibit an engine stall while braking aggressively from low speed with an auto start/stop indicator lamp flashing and a battery indicator lamp on with a shift to park message in the instrumental panel cluster (IPC). This may be due to the software in the PCM. To correct this condition, follow the Service procedure to reprogram the PCM.
