Affected Component: ENGINE AND ENGINE COOLING

Date Published
MAR 12, 2019
NHTSA TSB #
10156922
TSB Document
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.