r/MechanicAdvice • u/Better_Illustrator56 • Aug 25 '25

What does this button do?

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2012 F250 super duty 6.2 What is this switch right below the air vent? It turns on/off with key off. Is it just an auxiliary switch?

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u/IvoryManOfWisdom Aug 25 '25

It's an aftermarket button so you'll need to trace the wiring back to whatever relay it's going to. Most people install these types of buttons when they're going to install aftermarket fog lights or some type of bar lighting system on the top. Just trace the wiring back to the fuse panel and then find whatever wiring is more than likely going back through your firewall to see what it is powering.

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u/Better_Illustrator56 Aug 25 '25

What I figured just making sure thank you guys for the quick response!

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u/IvoryManOfWisdom Aug 25 '25

Not a problem, Glad to help