My Lane Departure Warning comes on randomly, while driving in the middle of the lane. Anyone else have this problem? Is there something that can be recalibrated? I asked the service desk at the dealer today and they just said they've never heard of that happening.
The EyeSight system doesn't somehow detect the lines painted on the road or where the lanes are supposed to be. It is an optical system with two cameras mounted above the rearview mirror. It takes an optical image from these cameras and an algorithm tries to determine where the lane is supposed to be, and then it beeps if the car's travel deviates from where it thinks the lane is, and the turn signal isn't active.
If you have cracked pavement and the city crews have gone and drizzled sealer in the cracks, the sealer makes lines all over the road. The system picks up these lines. If there are features on the road, like ruts or damage or debris or sand or salt, that make lines sort of in the direction the car is travelling, the system picks up these lines. If you are driving alongside a fence or railing and it is sunny, and the sun makes a shadow on the road sort of in the direction the car is travelling, the system picks up these lines. All of these things can skew where the computer thinks the lane should be.
I get mine beeping at me once in a while. A small percentage of the time it is correct that I am deviating from where the actual lane is without signalling.
Maybe one day there will be a system that accurately and reliably determines where the lane actually is.
When the dealership tells you they've never heard of an actual problem, it's one of two things: 1) They're covering something up or 2) they're not knowledgeable and haven't heard of it. Both things aren't that great.