The HVAC system may stop functioning due to a software issue in the climate control module. System failure would reduce the driver's ability to command the defrost function. This can reduce visibility, increasing the risk of a crash. To correct the problem, dealers will reprogram the electronic control module for the HVAC. The recall is expected to begin by March 11, 2011. The General Motors recall number is 11057.
Recalls are issued for cars with safety-related defects or problems
2011 Buick LaCrosse recalls
Heating & Air Conditioning, March 4, 2011
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