In the latest round of safety recalls, General Motors (GM) is recalling about 10,000 Buick and Cadillac vehicles to fix defective climate control systems that may not adequately defrost windshields.

Vehicles affected include Buick LaCrosse sedans and Cadillac SRX crossover vehicles from the 2011 model years, according to a notice posted on the National Highway Traffic Safety Administration website. The bulk of the vehicles -- about 9,000 of them -- are SRX models.

A software glitch may prevent drivers from adjusting the heating and ventilation system settings. Should the shutdown affect the defroster when needed to clear fog or ice, it could decrease the driver's visibility and possibly result in a crash, GM said.

GM isn't aware of any crashes or injuries related to the problem, which dealers will fix by reprogramming the software. Only about a third of the cars have been sold, the Detroit News reported.

GM discovered the issue last month as part of a production trial run to revise the software. Just one of 50 vehicles during the trial run had the glitch, the News said.

The recall is expected to begin on or before March 11, GM said. As is customary with safety recalls, the repairs will be performed by dealers free of charge.

Owners may call Buick at 866-608-8080 and Cadillac at 866-982-2339.

In December, GM recalled about 96,000 Cadillac CTS vehicles from the 2005 through 2007 model years to repair defective sensors that may prevent passenger-seat airbags from deploying in a crash.


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