what is this switch?
 

I have a 85 Corvette and theres a switch on the dash next to the steering wheel on the left. The switch is to the right of the headlight knob. Just wondering what it does. I switched it multiple times and I still don't know what it does.

with a '85, you might get a response by asking in the C4 section

https://www.corvetteforum.com/forums...erformance-48/

Have you checked your owner's manual?

Working off of memory, that sounds like the fog light switch.

Defective Ejection switch

Ask 540Vette and he can check his 540GTO and let him add to his post total.