04 denali 6.0 4l60e tune

[Gksportster]

hello ive been reading and haven't found out any answers is their a way to get the p59 computer to use the performance setting in the transmission tab ?
ive read something about a tow/ haul where you add a wire and a switch does that use the performance tab setting ?

thank you kelly

[blindsquirrel]

'Denali' is a trim level used on multiple platforms.

[Gksportster]

Thank you sorry
2004 GMC Yukon XL 1500 6.0 v8

[Evo8john]

Yes, you can add the appropriate wire to a switch that will put it into the tow/haul or performance tables if your truck didn't already come with it.

[Gksportster]

Thank you I got the wire harness off of a 04 Tahoe flex fuel and when I made it a stand along harness their wasn’t wires for any switch in the cab hooked to the computer

[2xLS1]

https://forum.hptuners.com/showthrea...-Switch-Option