Brake Lights don't work

Its a faulty turn signal switch.Try this,push down and hold brake pedal while pushing on the hazard switch and if the brake lights come on then replace the signal switch.

You probably have a bad brake light switch. This switch is located on the brake pedal arm or a bracket next to the arm. This switch activates the brake lights when the pedal is pushed. You can check this by turning on your turn signals or warning flasher if your light flash in the rear. Your bulbs are good so this will bring you back to the brake light switch.

try to toggle the hazard (emergency lamp switch on top of the steering collumn) on and off rapidly several times.the switch cuts the brake lights out for the 4ways to flash. if the 3rd brake-light still works the fuse is good.if the 4ways work and you cant get the brake lights to work then the multifunction lever has to be replaced which has the hazard switch on it. this is a vary common problem but the steering wheel has to be removed along with some other components behind the wheel which require special tools and knowledge. usually you can get the brake-lights working again by working the button for the 4ways rapidly until the brake lights start working again. good luck.

Try having someone push on brake pedal at the same time thay move the turn signal lever up and down slightly to see if your brake lights work this would tell me that you have a faulty turn signal switch because GM runs the brake lights thru the turn signal switch so they work if you are driving with your 4way flashers on.

One of 2 things to have checked, if all your bulbs and connections are correct. 1-stop lamp switch module.
2-multifunction/combination switch (blinker arm/components that are in the steering column). For about a 1/2 hrs. labor cost, a mechanic should be able to test the circuits.

Change your turn signal switch in the steering column 99% sure that is your problem you can some times check by holding the brake pedal down and wiggling the the switch around and have someone watch to see if the come on

You changed the hazard flasher or the turn signal flasher? It has two, one for the hazard and one for the turn signals

Your brake light circuit runs thru your turnsignal switch if your hazard switch is on your column I have seen numerous inop brake lights caused by faulty turn signal switches.

need to replace the whole switch/stick at steering column.

Hi! Have you checked the brake light switch? usually located at the top of the footbrake pedal, it is a plunger type and should have two wires going to it? if faulty try bridging the connection/wires for a test! have someone watching your lights to save jumping in and out of vehicle.
Merry Christmas!
Paul 'W'
Onyer~EDson(:0)~[><
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