2015 Silverado 2500hd 6.0

[Vortec1302]

I have just purchased a intune for my 2015 Silverado 2500hd 6.0 and the transmission is just not right it there a large delay in downshifting and when it up shifts at wot it's like torque management is on it does shift quick enough there like a small pause between shifts even know torque management is turned off i would like it to shift fast and firm at wot.

[06MonteSS]

so modify the tcm tune and adjust the shift pressure and shift speed to your liking..

[Vortec1302]

I didn't see anything that has the shift speed in the intune

[Vortec1302]

Is there like advanced settings you need to use to be able to do that?

[06MonteSS]

go through Advanced install, select the TCM tune you want to install, select to Modify the tune, and there should be settings in there for shift pressure, shift quickness, etc.. as long as you have the 6-speed GM tranny..

8 speed tranny and Allison tranny are not supported and can not be tuned/adjusted.

[Vortec1302]

i have checked i can increase the firmness but there is no setting for you to quicken shift.

[06MonteSS]

shift time, shift speed, etc.. nothing?

when you go in to modify the TCM settings, what is available for settings in the menu?

[Vortec1302]

No there's nothing there just firmness and shiftpoints

[Vortec1302]

Is there any way you can make the changes ?

[dang]

Does your vehicle have a 8 speed transmission?

[06MonteSS]

those don't come with the 8 speed.. only the 6-speed or allison..

he's able to install a tcm tune, so that tells me it's the 6-speed..

[Vortec1302]

Yes it is a 6 speed not a allison