Are you saying your rear brake lights have never worked/
Yes, they may have an intermittant problem but it is totally due to corrosion on the sockets terminals.
Take out each light ( very easy) and polish the terminals on which the sockets screw into. Bend out the tabs on the lamp holder and buff them as well.
You light should work well.
You may need to repaet this every once in a while as it acts up.
Your dash will alert you with an error.
Tell us how it works out.