How do you change a brake light switch?

I think i need a brake light switch. my signals dont work neither though. i have a 1988 chevy corsica. when i press my signal towards the steering wheel my left signal works but my right one doesnt work period. neither does my brake lights. when i hit the brakes they dont turn red. what could that mean?|||your turn signals and brake lights both got thru the turnsignal switch. %26quot;when i press my signal towards the steering wheel my left signal works but my right one doesnt work period%26quot; indicates a problem with the turn signal switch. most likely needs replace. but also the car should have a center brake light does it work? it does not go thru the turn signal switch only thru the brake light switch. recheck the bulb on the center light if its good check the brake light switch also. to check the switch get a test light and check both connections to the switch. with brake pedal up the light should light on 1 side but not the other. with brake pedal down light should light on both sides. if it does not light on either side check the fuse / wiring between fuse and switch. if it lights on 1 side but not the other with pedal down replace brake light switch.|||I would check the lamps first - they are probably burnt out.|||check all your bulbs first|||Sounds more like a malfunctioning turn signal switch. If your car has the setup where the brake and turn use the same bulb then the signal goes first to the turn signal switch and then to the brake light switch. Since you have a problem with both it%26#039;s just about certain it%26#039;s in the turn signal switch. For changeing either switch it depends on what make, model and year of car you have. Almost all of them are different. Brake light switches are relatively simple to replace. The turn signal switch usually requires removal of the steering wheel and a special tool to remove the plug from the wiring harness. Either buy a repair manual for your car (about $20 at the auto parts store) or check with a local repair facility to see what they%26#039;ll charge to fix it . If it%26#039;s a newer car, with an airbag, I wouldn%26#039;t recommend DIY removal of the steering wheel. Good luck.