Hello everyone,
I just got back from my Hummer dealer and I had asked them a question on how to replace the 3rd brake light, they told me that I would have to bring it in and pay a service charge to have it done. I know there is another way, was just wondering maybe one of you guys out there would be able to walk me throught it.? I also need to know if the LED light run hotter then the regular bulbs, if not does anyone know where I could get one for the 3rd brake light.?
Thanks in advance,

 

The third brake light is part of the upper trim piece that goes around the glass of the back door. The bottom trim piece is easy to remove, but I found the top piece tricky especially at the top of the glass. Break a clip and you will be buying a new trim piece (with the third brake light) or jerry-rigging some way to hold it. (I bought a new one. It was under $200.)

LEDs run cooler.

 

LEDs don't produce heat and they can be purcashed at many different electronics stores. Just put approx. 1.5 volts across it and watch it light up. I love LEDs.

 

Look what I found:
Present designs give performance between halogen and HID headlamps, with system power consumption slightly higher than halogen headlamps. These lamps currently require large packaging and a large number of the most powerful LED emitters available. As LED technology continues to evolve, the performance of LED headlamps is predicted to improve to approach, meet, and perhaps one day surpass that of HID headlamps.

LEDs are commonly considered to be low-heat devices due to the public's familiarity with small, low-output LEDs used for electronic control panels and other applications requiring only modest amounts of light. However, LEDs actually produce a significant amount of heat per unit of light output. Rather than being emitted together with the light as is the case with conventional light sources, an LED's heat is produced at the rear of the emitters. The cumulative heat of numerous high-output LED emitters operating for prolonged periods poses thermal-management challenges for plastic headlamp housings. In addition, this heat buildup materially reduces the light output of the emitters themselves. LEDs are quite temperature sensitive, with many types producing at 30°C (85°F) only 60% of the rated light output they produce at an emitter junction temperature 16°C (60°F). Prolonged operation above the maximum junction temperature will permanently degrade the LED emitter and ultimately shorten the device's life. The need to keep LED junction temperatures low at high power levels always requires additional thermal management measures such as heatsinks and exhaust fans which are typically quite expensive.