Thanks for replying. My LDW turns off if I turn off car and restar it. Even if front camera cannot read a lane in my driveway I would think once I hit the road it would turn off once it sees it. Just weird cause it does not do it all the time & restarting the car every time gets rid of message. Trying to see if there is some sort of pattern too. My husband left the over the speed warning on & no light in sight at all. Screen is black so he thinks it has to do with that but need to test more.