New 2022 Sierra AT4 Refresh (6.2L) drive modes?

[RugbyRef]

so that is a big NO upon further research it is the mud terrain tires if equipped cancels out the sport mode and the trucks that have it grayed out that was a mistake from the factory and has a service bulletin for an update to remove it

I have no words...unbelievable.

 

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[Jezus12]

The other big question is does sport mode actually change anything? Or is it just another screen option to make it look like it is something.

 

[jconner00]

The other big question is does sport mode actually change anything? Or is it just another screen option to make it look like it is something.

just drinks more gas by keeping at higher RPMs. Truck is fast without switching to sport anyways.

 

[prfalcon]

Sport Mode in 2 inch lifted off-road truck? I don’t see it. Seems kinda dumb to me.

 

[Raiders4614]

I have all 3 modes. I ordered the truck mid March '22 and took delivery 2 weeks ago! Yep, 10 months. The build was done in June and then sat somewhere in Mexican desert under 'awaiting parts' status.
I have 20" wheels with brembo front big brake package and AT tires.
Does anybody know if it's safe to run a pedal programmer on this truck since it has the different drive modes?

 

[Andystoy AT4]

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