Old thread revival here...are your Digital Keys still working. I got a GV60 on July 5th and am on my 3rd failure of the DK2. From my original post...
Fairly easy setup. Once setup, by design, I could walk up to the car and it would unlock. Inside the car, I could start the car with the phone in my pocket. I added my Watch (3 actually) and all worked well for about a week. Then it didn't, and upon invoking the key/card in Apple Walt, the commands were greyed out and it said "unavailable". So I deleted the key and then re-added it. all was well again. Then again, about a week or so later, it happened again. This time I called Genesis and they walked me thru the same process I'd done on my own. The person I spoke with said she could see in her system that the key was disabled (or similar verbiage). Anyway up and running again, but this time I didn't add the Watch, concerned with too much tech all at once. Again, things worked normally for a period, and again ceased. But I've noticed that things do actually work, they just now require "validation". So if I invoked the key form Wallet, and authenticate on the iPhone, I can unlock the door. Again, when I get in the car, I can press the brake, and then the power button. I'm asked to verify the digital key. Again, if I do the same procedure as unlocking (invoke Wallet and authenticate on the phone) and THEN place the phone in the charging tray, I can then start the car.
I experience the same thing as what I think the OP experienced...it still technically works, but no longer as a passive key that can remain in your pocket. It reverts to a need to be authenticated and placed near the door handle and then on the charger to start.
Frustrated!