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2003
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Avalanche 2500 4WD V8-8.1L VIN G
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Drivetrain - 4X4 Switch Indicator Flashing/4X4 Inop.
Drivetrain - 4X4 Switch Indicator Flashing/4X4 Inop.
This TSB number 03-04-21-001C, dated 06/24/03 has been superceded by TSB number 03-04-21-001D , dated 12/04/03