AutoStop

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

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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 … Read more

Stop/Start and AutoStop Operation – 2014-2016 Chevrolet

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2016 Chevrolet Impala

NHTSA ID Number: 10116862 Manufacturer Communication Number: PI1426A   Summary This preliminary informational bulletin provides Diagnostic Tips for Stop/Start and AutoStop Operation on vehicles that have a conditon of AutoStop mode not engaging and vehicle automaticlly restarts during a autostop event.     5 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET IMPALA 2015-2016 CHEVROLET MALIBU 2014-2016   … Read more