The affected vehicles are being recalled because the brake light switch can fail prematurely, resulting in the loss of brake light operation. Other systems that may be affected include: cruise control, push-button start, gear shifter, and Electronic Stability Control (ESC) system. Dealers will replace the brake light switch to correct this concern.
 
Recalls
Recalls are issued for cars with safety-related defects or problems
2009 Hyundai Accent
The Brake Light Switch May Fail Prematurely
Brakes, April 1, 2013