TSB - SERVICE ACTION: ELECTRIC THERMOSTAT ASSEMBLY REPLACEMENT (SA346) - This bulletin provides the procedure to replace the electric thermostat (ECT) assembly on some 2017-2018MY Cadenza (YG) vehicles, produced from January 6, 2016 through August 10, 2017, which may exhibit a Malfunction Indicator Light (MIL) illuminated with one or more DTCs.
