From what I've read from other threads, its a battery drain somewhere which I haven't been able to figure out. I thought it was the phone in the center console - took it out same results. I then thought it was the light for the overhead vanity mirror in the back - bc one time I noticed it was on even tho the little door was close... I checked all the light switches in the visors to see if those were staying on and no all good there. I've just been dealing with it, a bit annoying I must say.
'07 Audi A8 (w/ 20,000 miles)
'03 745Li (sold)
'03 Acura TL-S
'02 Infiniti QX4 (sold & new owner totaled it 4 hours later)