Where do these go to?

[Primo_713]

I just found these plugs cut off but have no idea where they go to can anyone help me with this or post some pics from their yukons,mine is a 2007 GMC Yukon SLT With a 5.3...thanks for the help.

 

[89Suburban]

I just found these plugs cut off but have no idea where they go to can anyone help me with this or post some pics from their yukons,mine is a 2007 GMC Yukon SLT With a 5.3...thanks for the help.View attachment 356610

I'm curious what that big plug is for too. Hmm....

 

[NathanJax]

Heated windshield wiper fluid. Recall removed the heat from all vehicles.

 

[swathdiver]

I'm curious what that big plug is for too. Hmm....

What Nathan said. That's the 4th or 5th button between your power outlets under the AC Controls. The company that made them originally went belly up but another company makes them now that do not catch fire or get as hot and you can restore that feature if you want. Alpha Therm is the name if memory serves.