GM bulletin: HVAC system reprogram / rear spoiler repair / engine harness inspection
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09-25-2009, 07:14 PM
Drives: 03 2500HD, 2SS/RS CGM, C-130H3
Join Date: Jun 2009
My service mgr told me the HVAC reprogram may be flawed and could cause further damage. Anyone else heard something similar?
His suggestion was to wait a week or so for an updated program to come out.
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