The heating and AC control knobs may fracture and spin on the control shafts. The driver may not be able to control the heating and ventilation for the vehicle. If this happens when the defrost system is needed, visibility could be reduced, which could lead to a crash. Dealers will replace all of the heating and AC control knobs free of charge. The recall began March 11, 2010. The GM recall number is 10012.
Recalls are issued for cars with safety-related defects or problems
2009 GMC Savana 3500 recalls
Heating & Air Conditioning, March 12, 2010
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