Hi All: Some recent Malibus and Regals need a lighting body control module SW update. Manufacturer: GM 2011-2013 Buick Regal 2013 Chevrolet Malibu Report Receipt Date: Oct 04, 2012 NHTSA Campaign Number: 12V484000 Potential Number of Units Affected: 120,426 Summary: GM is recalling certain model year 2011-2013 Buick Regal and model year 2013 Chevrolet Malibu vehicles. These vehicles are equipped with two turn signal bulbs in each front turn signal. If one of the two front turn signal bulbs burn out in either front turn signal lamp, there is no indication to the driver. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 108, "Lamps, Reflective Devices, and Associated Equipment." Consequence: If the driver is not aware that a turn signal is not functioning properly, the driver may continue to drive the vehicle. If half of a front turn signal is not illuminating, other driver's may not be aware that the affected vehicle is turning, thereby increasing the risk of a crash. Remedy: GM will notify owners, dealers will update the body control module software, free of charge. The recall began in September 2014. Owners may contact Buick at 1-800-521-7300 or Chevrolet at 1-800-222-1020. GM's number for this recall is 12212. 2013 Chevrolet Malibu Notes: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153).