JAN 2017 S75D-nee-S60D high-mileage owner here. Curious to see if other members with a S (or X) built in this time frame experienced any issues with the DRLs. By DLRs, I mean the "halo" which borders the LED headlight enclosure. Earlier this year the passenger side DLR partially failed where a portion of the DLR was not illuminated. I suspect one underlying lights (LEDs?) in the DLR strip went out, but never directly asked that question. I observed no other defect in the DLR or headlights at the time. I filed a service request under warranty. A ranger was dispatched by Tesla Service, diagnosed the issue, requested the replacement part - an entirely new headlight assembly - and then returned to swap it out when the part came in. Shrugged it off to Tesla being Tesla and did not think anything more of it until the driver's side DLR did the exact same thing a few weeks ago. Like before, a portion of the DLR halo had gone dim but the headlight itself appeared to be functioning normally. Dropped it off at the SC they replaced the entire driver's side headlight assembly. I can understand parts breaking but am suspicious the exact same failure occurred twice. This suspicion leads me to question if the supplier Tesla used to provide illumination to the DLRs had a defect in the manufacturing process - hence the thread. Curious to see if any other members with similar late 2016 / early 2017 build S's (or X's) experienced similar issues. FWIW I've got ~49k on the car and the two part numbers that were replaced were: Drivers Headlight Assembly - HD/LP ASY, SAE UP-LEVEL, RH (1053571- 1 00-D) / Covered by 50k warranty Passenger Headlight Assembly - HD/LP ASY, SAE UP-LEVEL, LH (1053570- 1 00-D) / Covered by 50k warranty Bonus fact: Service said the part cost ~$1.2k + labor (asked as I'm rapidly approaching the 50k mark and debating whether or not I want to extend the warranty).