2018 Hyundai Kona - Cruise hunts

After setting the cruise control on my Kona at 90 kph, it will “hunt” or vary anywhere from 85 kph to 95 kph. Its very annoying to the point where I don’t use it as much as I could

Is this a new problem, or was it always that way? Certainly, a pretty useless contraption in its present state.

Have you asked the dealer about this problem ?

There is a PCM software update to improve the cruise control setting logic. This is a service campaign, no charge to the customer.