NHTSA recall 13V220000

What's wrong: Originally, in May 2013, gm recalled 1,627 model year 2013 Cadillac ats and model year 2013 Cadillac xts; and model year 2014 Chevrolet impala vehicles. In October 2013, gm informed the agency that it was adding model year 2013 Chevrolet sonic vehicles to this campaign , representing an additional 8,050 units. The total number of vehicles being recalled is now 9,677. On the affected vehicles, the brake lamps may…

Why it matters: If the brake lamps flash when the vehicle is not slowing, a following driver may not adjust vehicle speed when the vehicle is in fact braking, and the brake lamps are illuminating as intended, increasing the risk of a crash.

The fix: Gm will notify owners, and dealers will reprogram the body control module. The recall began on June 13, 2013. Owner's may contact Chevrolet at 1-800-630-2438 or Cadillac at 1-866-982-2339. Gm's recall number is 13158.