Is your defective Cadillac CT4 actually a LEMON?

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Cadillac TSB #PIC6433

2021 Cadillac CT4

TSB Document:

MC-10190398-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

Summary: This Preliminary information communicates that a service theft deterrent message may display with no DTC's.Â Â OnStar will turn of the ECM read request to prevent re-occurrence.

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Date Published: MAR 12, 2021
NHTSA TSB #: 10190398

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