What turns the underhood light on on a 96 S10? (Page 1/1) 2.5 OCT 22, 01:20 PM Or "where is the switch" is maybe my question. There is a plug near the brake booster but that plug has 12v all the time. It plugs into a wire that goes to the light bulb, the bulb turns on when the hood is slightly opened, and off when it is almost closed. I do not see a push type pin switch anywhere like doors have (that the hood would physically push down). What is the actual switch? thesameguy OCT 22, 06:18 PM It's probably a mercury or ball bearing type switch in the light assembly itself. That's how the older trucks were, I have no reason to believe the newer ones are different. 2.5 OCT 24, 10:38 AM Thanks. Interesting, I wonder if one parked on a steep hill , if the light could come on and could kill a battery. Cooter OCT 24, 10:34 PM I just leave it unplugged on my '97 S10. It is really not bright enough to to much anyway carnut122 OCT 27, 07:50 PM quote Originally posted by Cooter: I just leave it unplugged on my '97 S10. It is really not bright enough to to much anyway That's also what I do on my 94 S10. rogergarrison JAN 06, 07:46 PM I like the GM trucks that mount an underhood lite by the jack in the rt fenderwell. Its self contained and has about a 15 foot cord w/ winder on it and wired into the harness with its own switch. I try to grab one every once in a while at a junkyard...very handy. heybjorn FEB 14, 07:03 AM What turns on the light? High heels and purple lipstick.