tail light harness corrosion - 2014 Sierra

[Spendit]

I have read lots of these things failing on this site, here is what I found:

Harness needs to be replaced - ordered from rock-auto - anyone else see such corrosion inside 5 years? I could not believe the dirt that is thrown at these bulbs, once I removed tail light assembly. This will become a yearly service - remove, clean and reapply dielectric!

 

34K Miles - right side blinker indicator "malfunction comes" on - simple, replace bulb (top bulb), lasts a week. Second try, scrub clean with electric cleaner and use good dialectical, install new bulb. 

Now the lower bulb goes out, same thing - all rusted up, this time cleaning and new bulb do not work.

 

Top and bottom bulbs have rusted the terminals away inside the sockets. 

 

Just sharing my findings