open the hatch and look on the inside of the door jamb there should be 2 screws or 3 screws remove those and pull the light out.
Remove the tail light housing and replace the bulbs.
This is usually cause by a stuck brake light switch on the brake pedal. Replace it.
Could be a bad bulb. The same bulb has two filaments, one for the tail lights and one for the brake lights.
Check the fuse, bulbs or there is a push button switch above the brake pedal that may need align or replace
01 Yukon 3rd brake light removal......changing the third brake light on a 2001 Yukon is a relatively easy task. First open the rear liftgate (not just the glass). This will expose the two screws that secure the housing of the lamp to the body (it also exposes the connector plug which, obviously, you should unplug). After removing the two screws, separate the rubber housing from the LED lamp itself....and there you have it!...because the third brake light is a sealed lamp the entire brake light must be changed. you can�t just replace the bulbs. ...
The emergency brake is designed poorly and uses a circle asembly with two brake pads on the circle there is some adjustment ,but mostly designed to be replace when changing out the disk pads . It is like a drum brake withend the rear disk brake.
Typically your dash lights go out when you are driving with no tail/brake lights. So check those fusses to see if one is blown, this is a safety feature.
If the brake lights stay on that probably means the switch on the brake pedal that activates them is defective.
open fuse box, pull fuses until you find the one that is burned out. then replace that fuse. VOILA! brake lights work again. I think all dodges have a diagram of the fuses in the fuse box cover just find the brake fuse and replace it.
The brake light switch has failed
faulty brake switch
The brake lights on a 2001 BMW 525i are replaced by removing the retaining screws, pulling the light assembly from the vehicle, and disconnecting the bulb. A new bulb is then put in place and reassembled.