Clock light

[beyond the blue]

At night the clock numbers in my ES are evenly illuminated white, but recently I've noticed that a partial backlight flashes on and off randomly, by partially I mean a 10 minute section will flash on and off and then a different 10 minute section will do the same, this flashing is in an amber colour. Any ideas??? 

[steve2006]

If there is nothing mentioned in the handbook regarding clock settings and function I would ask Lexus to investigate at the next service.

Perhaps a short video of the fault to prevent “We can’t find anything wrong”