Affected Component: ELECTRICAL SYSTEM

Date Published
SEP 18, 2017
NHTSA TSB #
10157013
TSB Document
Summary
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.