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Have you noticed errors or misjudgements with your car's lane keeping system?

Asked by LuckyGuy (43691points) September 18th, 2021

I’m asking about Automotive Lane Guidance systems, sometimes called Lane Keeping Aids, Lane Keeping Systems, EyeSight, etc., that are designed to prevent or warn the driver of lane departure. Some have a buzzer or steering wheel vibration to alert the driver while some apply a torque to actually steer the vehicle back into the center of the lane.

I recently noticed an error that scared me. I was driving on a newly repaved and painted asphalt road when suddenly my car began to alarm telling me to cross over into the oncoming lane! Apparently someone had pulled out of their driveway and made a shallow right turn to merge onto the road just after it was painted. The line was still wet so their tires made a 50 ft long white shadow line on the pavement a few feet from the true marking. The lane guidance system on my 2019 Subaru saw that line and alerted me that I had drifted out of my land and suggested I steer left.
Of course, I do not let the car steer. I have that option disabled. I leave the alerts on so I can see what the car thinks it sees, and learn about its reliability. It is either not functional at all, due to heavy rain, snow, or no road markings. Or it is 99.99+% correct. But it is that small <0.01% that really scares me.

I mostly drive on smaller, 2 land roads, one lane in either direction. It alerts when I swing a little to the left to avoid joggers, garbage trucks, US mail, Amazon, Fedex, UPS delivery trucks, bicyclists, or dog walkers. But that is ok.

Have you noticed anything similar in your car? Do you trust it?

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