Stopped on track as thought a wheel was loose following the pit stop, he was then ready to abandon the car, hence undoing his seatbelts when pit wall then radioed to say telemetry on wheels looked ok.
Pitted again to change tyres precautionary as well as to do seatbelts back up, but then turned out to be an Issue with the differential causing wheel spin in only 1 wheel, and "drifting to one side" issues.
AlphaTauri driver Yuki Tsunoda has revealed that he felt that something had broken at the rear of his F1 car before his retirement at the Dutch Grand Prix.
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