My '99 Suburban has not had brake lights for the last month or so. The tail lights, turn signals and flashers work. Third brake light doesn't work. My initial thought was the brake light switch behind the pedal but, on using the brake pedal, the cruise control suspends every time, so that has pointed me in a different direction. I've searched for ideas and came up with a faulty multi-function switch as the answer, so I ordered a new one. It came in yesterday and I spent 2 hours swapping it, but still no fix. At this point, short of replacing individual wires, I'm stumped as to what the fix should be. Wondering if anyone has additional ideas to keep me from pulling my hair out? I don't want to throw more money at it without knowing that it will fix the problem, but I need this vehicle to transport my kids around. Does anyone know for certain if the brake light switch is (or is not) the trigger for suspending the cruise control? All thoughts on this subject are welcome and will be entertained! Thanks for your help.