Agree with Senin, No AUS H3 (SAF Built) came with TPMS,Onstar and XM radio.
Not sure of the context the original poster heard the comment but if they were talking about different 4wd modes then some of these features are disabled when you enter 4HL, 4L, 4LL, etc. (Can't remember them offhand but this includes Traction Control, Stability Control, ABS)
Also, if I recall correctly, only the SAF Built H3 with AUTO Transmission have Stability Control (not the Manual Transmission models)
I can go back & research it if there is interest in this let me know.