I bought a 2023 Blazer new with LED head lights from a dealership. Test drove during the day, not night. I find a HORRIBLE, BUSH LEAGUE display of the head lamps at night. Imagine driving at night, you come to a dip in the road or the pavement is rising in front of you, and you see a large irregular shaped blacked out blob on the left and a large irregular shaped grey blob almost in the center of the light field. I took the Blazer to the dealership for beam correction with the attached still picture from drive video and dealership found nothing wrong. The beam display at a dip or rising pavement is horribly irregular. I don't know of any way to fix it if the dealership finds the display fine. Ideas anyone?

 

Have you tried to search for it on YouTube?

 

I ended up contacting a head light specialty shop that said the "block out" triangular fields are by design for many LED head lamps. The idea is the black out to the driver's side of center line is designed to eliminate blinding oncoming drivers and the grey block out at center line is designed to diminish the light intensity showing in a driver's rear view mirror. There is no way to adjust the block outs left and right, only up and down. I hate the look of the light field, but it is not a head light failure.