TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
MIL ON WITH DTC P0128 STORED IF YOU CONFIRM The MIL is ON and DTC P0128 (THERMSTAT FNCTN) is stored in the ECM, AND There are no drivability concerns. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.

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Date Published
JAN 25, 2021
NHTSA TSB #
10186852
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