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2006
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Sierra 1500 2WD V8-5.3L VIN T
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Superceded Bulletins
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OnStar(R) - System Inoperative/LED Not ON
OnStar(R) - System Inoperative/LED Not ON
This TSB number 05-08-46-001C, dated 10/19/06 has been superceded by TSB number 05-08-46-001D , dated 05/02/08