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TSB Document:

Affected Component: ELECTRICAL SYSTEM

This Preliminary Information communication provides information to the technician about vehicles that have a check engine light on. Technician may find Diagnostic Trouble Code P026A. The owner's manual advises not to drive above 45 MPH with a snowplow installed. However, GM Engineering is aware of the concern and is investigating.

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Date Published
SEP 18, 2017
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