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GMC TSB #PI-0648

2009 GMC Sierra

Summary: CADILLAC/CHEVROLET/GMC: ORIGINAL STYLE BLOWER MOTOR ASSEMBLY IS NO LONGER AVAILABLE. A REVISED HVAC BLOWER MOTOR ASSEMBLY FOR FULL SIZE TRUCKS IS REQUIRED, WITH MODIFICATIONS, TO FUNCTION PROPERLY. *PE UPDATED 2/25/13. *PE

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