gmc Workshop Repair Guides

GMC Yukon V8 Flex Fuel Workshop Service and Repair Manual

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All Other Service Bulletins for Control Module HVAC: > < A/T - 4L60E, Harsh 1-2 Shift/Slipping 1-2 Shift

A/T 4L60E Transmission Issues - TSB 03-07-30-020D

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For vehicles repaired under warranty, use the table.

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All Other Service Bulletins for Control Module HVAC: > < A/T - 4L60E, Harsh 1-2 Shift/Slipping 1-2 Shift