My 2021 was in the transmission shop right next to yours this week! For inquiring minds, had first oil change at 2,500 km's, DCT fluid top up at 3,900 km's, and CEL came on at 4,200 km's for less than 24 hrs and about 30 km's of driving before going out. Brought it to dealer to check codes, and transmission codes came up (it was running perfectly fine). They spent a day reprogramming, testing, wait for it to cool down, and reprogramming and I'm hopefully picking it up today.
True test will be Mosport on Monday. Fingers crossed.