This may be a long shot, but my DSE clock did'nt work, along with the window switch panel lights, one night whilst out, I was aware of something 'flashing', looked down & the window lights came on, I never even realised they lit, since i'd never seen them before!!
So I gave the slanting panel a 'whack' with the palm of my hand, & everything lit up, GREAT! so then I gave the clock a good 'whack' as well, & that lit up as well!! I never knew that had a light either!!
They've been ok ever since.