TSB: SERVICE ACTION: ESC/AHB LOGIC IMPROVEMENT FOR BRAKE FEEL (SA356) - This bulletin provides the procedure to improve the logic of the Electronic Stability Control/Active Hydraulic Booster (ESC/AHB) system on some 2019MY Niro (DE P/HEV), produced from July 19, 2018 through October 1, 2018, which is to improve brake pedal feedback and feel to the driver. This improvement does not affect the braking performance or stopping distance. To improve customer satisfaction, apply the improved logic to the ESC/AHB using the KDS ECU Upgrade function as described in this bulletin. For confirmation that the latest reflash has been applied to a vehicle you are working on, verify the ROM ID using the table on page 2 of this bulletin.
