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December 9, 2014 Service bulletin

Equipment: electrical: radio/tape deck/cd etc.

Chevrolet technical service bulletin PI1374 for 2015 Chevrolet Silverado 1500, 2015 Chevrolet Impala and 2015 GMC Sierra 1500 and others.

Bulletin number
PI1374
Component
Equipment: electrical: radio/tape deck/cd etc.
Summary
This preliminary information provides a procedure to update the radio to correct the cutomers concern of no XM, radio locks up, slow response time, vertical lines between the clock and temp guage, and poor FM reception.

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