Likely the emergency/park brake switch. These often fail and cause the light to flash [assuming that the brake fluid reservoir is full]. There is also a recall on the brake light switch on these cars, so if the emergency/park brake switch is good let me know and i'll try to track down that recall (the dealer should be able to tell you if your car is included).
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Saturday, March 30th, 2013 AT 1:57 PM