TSB: SERVICE ACTION: POWER WINDOW SWITCH ASSEMBLY REPLACEMENT (SA354) - This bulletin provides the procedure to replace the main power window switch assembly on some 2019MY Optima (JFa) vehicles, produced from May 22, 2018 through August 30, 2018, which may experience a non-functioning ?auto-up? window switch. Follow the procedure outlined in this bulletin to replace the main power window switch assembly.
