brake lights not working
have you tried looking at filaments in the bulbs? there are 2, if 1 is broken that can be the problem,since your tail lights are working..
look under hood,big black plastic box,with round knob on top,there are relays in there don't mess with them.check from brake switch back up under dash,may find a break in power wire...........good luck
The brake light fuse and relay for the 2005 Cadillac CTS is located under the rear seat on the driver side. The fuse and relay is marked BAS fuse and BAS relay. See full article on Google Plus - "CTS Cadillac Brake Light Not Working - 3rd Brake Light OK." These guys don't use traditional fuse names because they want you to bring the car in for service.
I found a blown I IPoutlet fuse to be my problem
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