Replacing Genesis thermostat

Sept. 10, 2024
Certain 2018 Genesis G80 vehicles equipped with a 3.3Y or 3.8L engine and built before Aug. 30, 2017, and 2017-2018 G90 vehicles equipped with a 3.3T engine and built before Aug. 30, 2017, may experience a DTC P0597 (thermostat heater control circuit/open).

Certain 2018 Genesis G80 vehicles equipped with a 3.3Y or 3.8L engine and built before Aug. 30, 2017, and 2017-2018 G90 vehicles equipped with a 3.3T engine and built before Aug. 30, 2017, may experience a DTC P0597 (thermostat heater control circuit/open).

To replace the thermostat, make sure that the new part has a newer lot date than July 20, 2017. A blue marking will indicate lot date placement. Using GDS, check for codes and clear after replacement.

About the Author

Motor Age Staff

Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored. 

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