03-06 Chevy Tahoe 3rd brake light circuit test and replacement
The third brake light in these trucks is a sealed unit that is serviced as an assembly. This means that when the third brake light fails, it's not as simple as replacing a $2.00 bulb. They can be found online for around $40.00. Taking the time to test power and ground to the third brake light could potentially save you a cool $40.00 because no power/ground = no light.
I can't vouch for the longevity of the light that I used so no links but it can be found on amazon.
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