LED's?

Getting new stuff that don't work is the pits and I've seen it more and more in the last few yrs. with all the mass production and outsourcing to foreign sweat shop labor, which most electronic parts like LED's are made. LED bulbs are also very easy to screw up when made because their polarized. If the person making them gets the wires crossed inside they won't work.

The brake lights use the same wires and filament that the turn signals run off of so if the turn signals are working the brake lights should, as long as they did before.

Reverse lights run off of a switch either in the transmission, or on the floor shifter, or on the column shifter depending on which model/year car you have. You should be able to just pop in new LED bulbs and they work. Providing the LED's are good.