DETROIT (WKZO) -- The National Highway Traffic Safety Administration is looking into complaints of headlight issues with 2007 to 2009 Saturn Outlook and GMC Acadia models.

The agency has received over 400 complaints of the loss of the low beam headlight.  General Motors officials say through an internal program they have repaired over 343-thousand vehicles and owners of those vehicles have been notified by mail.

GM says they have replaced headlight bulb connectors and will continue the free program for owners through December of 2013.