Help wiring a 3rd brake light.

EX121

New member
I have a 2022 Chevy Silverado and an OvrLnd pop-top camper. I need instructions on how to wire the third brake light. Thanks for any help.
 

NatersXJ6

Explorer
Does the camper plug into the trailer harness?

If you end up doing that, I leaned the hard way that the 3rd brake light needs to be connected to both brake wires by way of a special trailer 3rd light adapter. They call it a logic unit, but I suspect there is no logic to it. It keeps the 3rd brake from flashing with the turn signal.

If you have to wire from scratch, you could also tap the existing 3rd light from the truck and run a wire there.
 

Verkstad

Raggarkung
If your Silverado uses 'euro-japper scheme of tailamps. Many GMs do... (Which is at least one good thing to say about GM) You should be able to easily connect your new CHMSL to the brakelamp circuit at either tailamp.
 
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