2026 Carnival with Downhill Brake Control (DBC) anyone?

I read up online about braking going downhill and the online KIA users manual suggest that there is a Downhill Break Control (DBC) button - https://ownersmanual.kia.com/full_webhelp/MV1A/2026/en_US/topics/chapter6_7_10.html - that could be used. But my SXP does not have it and a call to KIA also they said they could not find anything but an acronym on the user manual. Hard copy users manual also does not have it. Does it mean that DBC is not available on the KIA carnival. Wonder if anyone has it on their Carnival.