One of my ar's does this occasionally. When I scanned the codes it told me that the right front level sensor had an error, so I'll have to take that off and fix it during warm weather. On my car, restarting it turns the light off. If I'm moving, I just depress the clutch, turn the engine off (don't lock the wheel), turn the key back on and let out the clutch. Car restarts and the light is out.
The creaking noises could be your suspension warning you that control arms are due for expensive replacement.
2016 S4, Misano Red, 6mt, 19" wheels, Sport Diff, Tech Pkg, and soon H&R coilovers;
2003 allroad, Cobalt Blue, 6mt, Stage 2.
2006 S4 25quattro #103 of 250, 6mt, Avus Silver, H&R coilovers;
2004 allroad, Brilliant Black, 6mt, Stage 3+, including Tial 605's.