Are you certain this is available on the LC500? This has been a complaint since the car launched and nobody has mentioned it anywhere.

 

Taken directly from the Lexus repair manual.

 

Anybody heading over to a Lexus dealer anytime soon willing to see if this actually works and keeps the ambient lighting from dimming when taken out of park? Very interested to find out!

 

Bad news on the fix you posted. I posted this on the Lexus forums on facebook and someone who owns an LC500 and actually works for Lexus had one of the techs over there try it out on his car. All this did was completely turn off the ambient lighting when put into gear. The poor guy just posted that he has zero ambient lighting right now.