I just got a 94 firebird formula. I was just wondering what the preformance transmission button does.

 

My best guess it that it might raise the trans line pressure and possibly the shift points a little.

 

I have never heard of that. I'll be interested to see what that button is all about. The only button I have is TCS.

 

https://ls1tech.com/forums/automatic-transmission/398420-transmission-perform-button.html

 

Yea, I had it on my '95 TA and it raises the line pressure. I used it for a while until I got my Shift kit and then I didn't use it anymore because I didn't wanna put too much pressure on anything. I did notice a little difference when it was turned on, mad the shifts a little firmer and snappier.

 

ok, cool thats all I wanted to know.

thanks.