What is this button ?

04 2wd pre runner,

What is this button and what does it do? ( who is your daddy and what does he do? Joke )

 

Gives you nos.

 

Turns your potato into a real camera.

Looks like ECT button, gives you a bit more get up and go at the price of a bit of mpg loss.

 

It engages the shoulder thingy that goes up

 

It is for towing and hills.. tells A/T to hold gears a little longer.

I think 3rd gens have them too, except in those models it starts the driver's Electroconvulsive therapy treatment.

 

It just revs slightly higher before shifting into the next gear.
It's a poor man's "sport mode"