That makes sense. I have the LTZ trim, which has both the 2 level auto transfer switch and tow/haul mode. I also have only those two drive modes on my truck. GM must have assumed we wouldn't be needing Sport mode on this big truck! Thanks for the response Newdude.
Does anyone know what RPO code URC, "SWITCH-FLEXRIDE MODE SYSTEM" actually is? I have a 2024 2500HD LTZ with this RPO and I am not really sure what it refers to. Thanks!