ABS light sometimes stays on after starting at Nubira

Hello all, I bought a new Chevrolet Nubira 1.6 SX last year. Since then the ABS light is sometimes on after starting. Was there already 3x at the dealer, the first time the wheel sensors were changed, but no improvement. The other two times it stayed at the shoulder twitch, he also does not know. A joke in my opinion. Does someone have similar problems here and can help me there? If this happens in 2 years at the Tüv, then I can probably get the car a tap. Thanks in advance !!!