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March 12, 2024 Service bulletin

Voltage regulator performance enhancement (SA278) closed

Kia technical service bulletin TSB_ELE131_CLSD for 2017 Kia Sorento and 2017 Kia Optima.

Bulletin number
TSB_ELE131_CLSD
Component
Electrical system
Summary
TECHNICAL SERVICE BULLETIN: SERVICE ACTION: VOLTAGE REGULATOR PERFORMANCE ENHANCEMENT (SA278) CLOSED - This revised bulletin is now closed. This bulletin provided the procedure to increase the torque on the voltage regulator screws on some 2017MY Sorento (UMa), produced from October 3, 2016 to January 24, 2017, and 2017MY Optima (JFa) vehicles, produced from October 3, 2016 to January 26, 2017, which may experience low battery voltage or a no-start condition.

Owners of these vehicles have filed 124 complaints in the electrical category.

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