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April 9, 2019 Service bulletin

Electrical system: software

Chevrolet technical service bulletin PIP5369C for 2014-2019 Chevrolet Silverado 1500, 2015-2019 Chevrolet Tahoe and 2014-2018 GMC Sierra 1500 and others.

Bulletin number
PIP5369C
Component
Electrical system: software
Summary
This Preliminary Information communication provides information to the technician about vehicles that have "Service 4 Wheel Drive" message on the Driver Information Center. Provides the technician with additional information to ensure that the TCCM contains the latest software released to address previous issues, also advises of default action changes. Calls out specific circuits to be inspected to help isolate intermittent codes.

Owners of these vehicles have filed 2,144 complaints in the electrical category.

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