Hi, I’m not sure if this has been mentioned before but I’ve owned a Lexus c220h for 8 months now and only just recently noticed an L shaped red line on the windscreen. I was just wondering what this was? Thanks

 

Perhaps it's my cataracts, but I've magnified the image you've provided & examined it a few times, & STILL can't see what you're telling me is there - try photographing from multiple angles so we can actually see what you're seeing -

 

Radio antenna