Brake lights and turn signals not working, top back hatch brake w

could have faulty turn signal switch because the brake light circuit flows through the turn signal switch.

although I have not experienced this problem in the exact vehicle you have, General Motors has had problems with the turn signal switches in many of their vehicles. The turn signals may still work properly, but the electric signal from the brake light switch passes through the turn signal switch (also called a combination switch) before it goes to the brake lights. I assume you have no problem shifting out of park or you would have mentioned it, which tells me the brake light switch is functioning properly. First thing to do, as always is to check for blown fuses. If it is a blown fuse, you then need to determine what caused the fuse to blow. If you have towed a trailer recently, it could have been faulty wiring in the trailer, or it could be faulty wiring in the trailer lighting harness of the Escalade.

need to check the multi-function switch. the brake light signal goes through the turn signal switch on the steering column. the brake lights come on if the turn signal is not being operated. the circuit for the brake light can loose contact in the switch.

OK try this turn the signal light on one side or the other then push brake pedal if brake lights come on replace the turn signal switch

Check the brake light switch on the top of brake pedal, it's most likely the cause.

If you have already check fuses, and brake light's still don't work, it's going to be your turn signal switch, the brake light circit runs thought the brake light switch, if your car has a middle top brake light in back of rear window, most of the time that one will still work, and the turn signal will also work, but not the rear ones brake light's, when turn signal switch is bad, hope this was very helpful.

Brake light on top works tells me the switch at the pedal is ok. Turn signals working tells me that the turn signal filaments have power.

I would try changing the bulbs and if that doesn't work have an electrical shop trace the wires and check for power on the brake light circuit in the back.

THE PROBLEM IS IN THE MULTIFUNCTION SWITCH, REPLACE IT.

I believe the brake light on the hatch works off a different fuse then the taillight brakes. Double check to see if there is more then one fuse for brake lights. By pulling the fuse you changed and leaving it out, see if the hatch light comes on or not; this may answer at least one question if it is one of the fuses. If your running lights in those bulbs are coming on; you probably have a good ground, if not it may be a loose ground wire.

Turn signal switch 95% of t he time. Try to work your hazards, if it stuck at all will also cause this.