When I press my break pedal my rear brake lights and third will not work. on 2003 Cadillac Escalade

I didn't have this problem before. All at once they stopped working

by in Crawfordville, FL on June 05, 2014
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2 answers
ANSWER by , June 05, 2014
Check brake fuse, and/or brake light switch.
ANSWER by , June 05, 2014
Any problem shifting transmission out of park???? ... IF no.... Possible multifunction (signal light) switch!!!!