Mine didn't work for about 2 weeks...
One day, emergency brake engaged while I was making very aggressive lane change.
I think vehicle thought I was crashing into vehicle that was already in the lane I wanted to go.
It actually made it more dangerous as there was a vehicle behind me. Basically, I was trying to squeeze into 2 cars to take my exit. (I'm not proud of it..)
and ever since that SCC worked fine with no issue..
I know SCC and emergency brake uses same radar in the grill, so maybe what I did during lane change made it work..
i also looked at other Kia vehicle forums and apparently quite few people had SCC condition problem and the fix was SW update at the dealership.
Interestingly enough they lost the manual and SD card for the car and had to find a stock one to give me. I wonder if my software is not fully up to date because of that.
I can't seem to find where to check the versioning of the current firmware. Is there a place for consumers to do that or am I doomed to take it in? =p