Buick TSB #PIC6354
2018 Buick Regal
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- 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 this may be converted into a bulletin.
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