Underdash mystery button/switch

ASHAMED EDIT:
Stupid me was not pressing THAT, and I just assume that was it when I took the picture. I was pressing the spring loaded switch under the clutch pedal one inch below and two inches to the right....



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I looked at every 128 buttons in the owner manual... sigh I missed it.
I didn't go thru the 550 switches.
I searched for underdash mystery button... Found a sh!t load of set button for TPMS.

Couldn't find anything on this one.

Can you guys tell me what this button do?



The actual button I was pressing... Sigh....

 

That's a bolt...

 

2 days early

 

That’s the switch that tells you it’s time for reading glasses…….

 

EDIT: Yes it is...
Stupid me was not pressing THAT, and I just assume that was it when I took the picture. I was pressing the spring loaded switch under the clutch pedal.

 

I don't need a bolt for that. As posted, none of the 128 occurrences of Button in the user manual tells me what this is.
and I don't feel like going thru the 500+ hits for switches.

 

I for one believe you OP. BUt I have no fucking idea what that push button is for, nor do I recall this ever being asked about before?

 

I also found evidence of it on page 448 in the user manual but doesn't say anything about it.
It's right under the fuse box.


EDIT : That the stupid bolt and not what I was pressing.... Sigh.

Stupid me was not pressing THAT, and I just assume that was it when I took the picture. I was pressing the spring loaded switch under the clutch pedal.

 

Secret passenger eject button

 

That's a JIS switch. Test it by using an ordinary 10mm wrench to turn the nut clockwise until it stops. See if it still clicks when done

If that doesn't work, part it out

 

Only counterfeit Tacomas have that bolt. Hate to break it to yah, but your truck is a knock-off made in China.

 

Have you pressed it while the truck is on?

 

Ummmm that is a stud that is part of the main body ECU bracket.

 

Not yet, tomorrow I will follow @Phlogiston wise advice "fucketh about findeth out"

 

take a picture of the wiring coming out of the back side of it. need to see the wire colors.

 

Is yours behave like a button?

 

will be back tomorrow with that answer.