Happened to me one time in my new edge. Came to realize, when putting one of the taillights back in, I pinched a wire causing it to short out and the brake lights didn't work at all. Got pulled over for it lol. Cop let me go. But maybe you're having the same issue?
Procharged D1 on 12Lbs, MPT 93 Tune, 73mm BBK TB, Ported Upper/Lower Intakes, BBK Shorty Headers, FRPP Cut n Clamp Xpipe, Borla S-Types, Barton Short Shifter/Blowfish Bracket, SS Clutch Line, Whiteline Trans Bushing, One Piece Driveshaft, Front and Rear Tower Brace, Whiteline Front and Rear Sway Bars, Whiteline Adj LCAs/Adj UCA, BMR Relocation Brackets, BMR adj Panhard Bar, Eibach Sportlines, FRPP Dampers, 20" AMRs, 3.55 gears, Brembos