Some 2020 Transit vehicles equipped with a 10R80 automatic transmission may exhibit a harsh engagement into drive with or without an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0772 and/or P2704 in the powertrain control module (PCM). This may be due to sticking valves in the main control valve body. Most vehicles will improve and no longer exhibit the condition after the first 160 km (100 mi) of driving. To correct the condition, follow the Service Procedure steps to replace the main control valve body and/or perform drive procedure.
