When pressing the brake pedal a light appears on the dash board with an X on it on 2007 Hyundai Elantra

I check the break light all are working.. It happen all the time when I step on the break pedal

by in Elmwood Park, NJ on November 04, 2013
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2 answers
ANSWER by , November 04, 2013
See owners manual.
ANSWER by , November 04, 2013
poss 3rd brk light has 2 bulbs and one is bad.remove and ck