Voluntary service campaign: 3-WAY coolant valve replacement (SC373

Bulletin number

SC373_TSB_R1 (SC373)

Component

Visibility/wiper

Summary

TECHNICAL SERVICE BULLETIN: VOLUNTARY SERVICE CAMPAIGN: 3-WAY COOLANT VALVE REPLACEMENT (SC373 Revision 1) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information to replace the 3-way coolant valve. In addition, inspect the 3-way coolant valve harness connector for corrosion, and if necessary, replace the harness connector on certain 2024-2026MY EV6 (CV, CVa) vehicles produced from August 07, 2023 through June 18, 2026. The 3-way coolant valve in the subject vehicles may become damaged and result in a coolant leak. As a result, corrosion may also be present in the 3-way coolant valve harness connector. An inoperative 3-way coolant valve or corrosion within the harness connector may result in reduced Heating, Ventilation, and Air Conditioning (HVAC) performance and/or in the illumination of the “Check electric vehicle system” or “Refill Coolant” warning messages in the instrument cluster.

Owners of these vehicles have filed 1 complaints in the visibility category.