Totally excited! After driving Kia Sportages since 2002, I never saw a Hill Descent Control. Found time late this afternoon to look again - and there it is!
Possible my knee has hit it a few times (on and off). Dealership were about to charge me $149 for a diagnostic test (from a non-service staffer). Morning of the meet, I canceled. Never heard back. Thanks so much for the tip!