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2003
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K 1500 Truck 4WD V8-6.0L VIN U
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OnStar(R) - Analog/Digital To Gen. 6 Digital Upgrade
OnStar(R) - Analog/Digital To Gen. 6 Digital Upgrade
This TSB number 05-08-46-006P, dated 09/22/08 has been superceded by TSB number 05-08-46-006R , dated 05/16/12