NO SPORT MODE !?

[KARNUT]

Basically you’re asking for a device or mode to do something you can do yourself. Mostly by manually shifting. I rather have less electronics. I did like the E-85 boost they eliminated. I used to add a programmer to do the same thing. 

[shanemoon]

Certain trims have it and others don't. My 2023 Trailboss 5.3 w/18" wheels does not have it. I also drove a 6.2 Trailboss w/20" wheels that did have it.

It's really nothing to worry about it. It let you hold a bit higher RPM's and tightened up the steering a bit...but that was really it.

[USMCretired]

I have a 2023 GMC Sierra 1500 6.2 AT4 with the ALC upfit package and it has all three modes.

Edited May 27 by USMCretired