Re: no rear brake lights 3rd light ok
Want to mention that with many GM vehicles, this problem would be the turn signal switch. The center stop light signal comes from the brake light switch itself, where the left and right go through the turn signal switch (so when you step on the brake, and one of the signals is on, the flashing will still be occuring on whatever signal is on). Saw a few really good techs screwing around with bulbs when they should have been replacing the turn signal switch!
2017 Crew Cab Long Box Z71 V6 4WD Brownstone