Brake light on and why
looking for help on the brake light ground wire location for 1999 gmc suburban 4x4
Check the brake light switch. It is defective or out of adjustment.
Replace brake light switch.
Look under the dash on the 1996 suburban, and locate the brake light switch on the brake pedal arm. Remove the switch nut, and slide the switch out. Unplug the wires from the switch and install the new switch.
Have you checked the brake fluid level in your brake master cylinder in your engine compartment ? a low level will turn on your brake light in the dash
when this light is on it means that there is something wrong with your anti-lock-brake system and you should go get it checked.
Low brake fluid in master cylinder? Parking brake not fully released?
Blown bulb/ bad bulb
Unscrew the bulb by turning it coumterclockwise and it will come out of the assembly.
The brake light switch may be bad or out of adjustment. The switch is located just above the brake pedal.
follow the brake pedal to the house, and you will see the harness behind that. follow that harness and it will lead to a second plug that you can access on work on
Have you check all of the light bulbs? If yes, then check the ground next and then check the fuses. Lastly, if all of those check out, it is most likely the brake switch behind the brake pedal.