Auxiliary Coolant Pump Noise Heard During an Autostop – 2018-2019 Buick Regal

2018 Buick Regal

NHTSA ID Number: 10160982 Manufacturer Communication Number: PIC6354A Summary This Preliminary information communicates that during an autostop event the customer may notice a pump noise. The ECM turns on the auxiliary coolant pump to meet the heater performance so the noise they hear is normal and no repairs are needed and that as more information is gathered …

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