Vehicle shown in this step: 2005 Chevrolet Silverado 2500 HD 6.6L V8 Turbo Diesel Extended Cab Pickup (4 Door)
Procedure notes
The brake lights on your 2007 GMC Sierra 2500 HD illuminate when you hit the brake pedal and help prevent you from being rear ended by the cars behind you. Brake light bulbs grow dimmer over time and eventually burn out. See how to change the brake lights on your 2007 GMC Sierra 2500 HD. The first step is to locate the brake light socket in your Sierra 2500 HD. Remove the brake light socket and then replace the burnt out brake light bulb. When you replace the brake light bulb on your Sierra 2500 HD, be careful not to touch the bulb directly with your fingers - the oil from your skin will cause the area that you touched to burn hotter than the rest of the bulb, which causes the bulb to burn out quicker.