I doubt those would affect the interior lights as they are isolated from the BCM by relays.
A broken wire in the steering or the clockspring? Check the schematics and check the wires going into...
None of the interior lights were replaced with leds, and those other steering wheel lights all went out at the same time.
However.. about 2 months before that, I replaced my headlights and fog...
2012 XL Denali, one night I went to turn on my overhead map light, I pressed the light/switch and the light did not come on but it dimmed my instrument cluster lights. Press again still off but IC...