TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Emission - General Motors has decided to conduct a voluntary emissions recall involving certain 2018-2019 model year diesel engine vehicles. The engine control module (ECM) in these vehicles may not adequately diagnose or illuminate the malfunction indicator lamp (Check Engine Light) when frequent regeneration of the diesel particulate filter (DPF) occurs. Dealers are to program the engine control module (ECM) with corrected software.

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Date Published
FEB 12, 2020
NHTSA TSB #
10172657
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