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I found the fatigue assistant is a bit unreliable. After 150km continuous driving, lots of yawning and associated noises, a few lane keeping reminders - doesn't do a thing.
Next day, after stop-start 10 minutes in the city it says I need a break.
???
Does anyone know what is being used to determine "fatigue" in our cars?
Eye movements /lane drift / comparison trip data?
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