2015 Suburban LT led tail light/headlight issues

[Bill Sheridan]

Hi all. Has anyone had any issues with their led tailights? I just found out, by numerous vehicles flashing me on the highway, that mine were not functioning

Turn signals/ brakes, reverse all are fine. On further investigation the following morning, I noticed that the led headlights were also out. Is it safe to assume that

these are all controlled by a BCM, and if so which one? The manual really doesn't help with these, just says to contact the dealer. Thanks in advance.

[Bill Sheridan]

Update: went in to the dealer for diagnostic check. Turns out that relay #51, under the hood marked parking lamps, also controls front and rear led lights. Who knew? New relay, problem solved.