General Motors is recalling certain 2012 Buick Regal sedans for faulty parking lights. The problem affects 3,633 Regals, which are equipped with high-intensity discharge headlights. The National Highway Traffic Safety Administration explains that a software error is responsible for the defect, which fails to activate the parking lamps when the headlights or parking lights are turned on.

While faulty lighting doesn’t render this upscale midsize car undriveable, it’s still a serious safety concern. Consumer Reports notes that “this flaw violates U.S. safety standards and may cause an increased risk of vehicle collisions due to reduced visibility of the Buick car.”

Some analysts say that since the recall’s effect is relatively small, it probably won’t have much negative impact. Edmunds calls it, “An odd, but easily fixable issue that's not likely to affect Regal sales much.” 

Affected Regals were built from Feb. 22, 2011 through Feb. 22, 2012. You can check to see when your car was built by looking at the manufacturer sticker on the driver’s side door jamb. The recall began Tuesday and if your vehicle is affected, Buick dealers will reprogram the Regal’s control module free of charge. Owners can also contact GM directly at 1-800-521-7300.

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