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April 1, 2012 Service bulletin

Gm: blower inoperative after control module replacement

Chevrolet technical service bulletin PIT5141B for 2004-2006 Chevrolet Tahoe, 2003, 2008 Chevrolet Trailblazer and 2003 GMC Yukon and others.

Bulletin number
PIT5141B
Component
Visibility: defroster/defogger/HVAC system: fan/motor
Summary
Gm: blower inoperative after control module replacement. This may occur if the speed is set to any speed position, except for low, when the key is turned off. Upon nest key up, the blower motor may be inoperative. Also included model chevrolet trailblazer xl model years 2003-2007. Js

Owners of these vehicles have filed 165 complaints in the visibility category.

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