TECHNICAL SERVICE BULLETIN: SERVICE ACTION: IGPM SLEEP MODE OPERATION LOGIC IMPROVEMENT (SA497) - This bulletin provides the procedure to update the software logic of the Integrated Gateway & Power Control Module (IGPM) system on some 2022MY Niro PHEV (DE PHEV) vehicles produced from June 2, 2021 through March 8, 2022, to address a concern with parasitic battery draw when the vehicle is turned OFF which can lead to a discharged 12V battery.
